Audio Engine Fixes

.gitmodules

@@ -14,3 +14,12 @@
 [submodule "Vendor/glm"]
 	path = Vendor/glm
 	url = https://github.com/g-truc/glm
+[submodule "Vendor/RmlUi"]
+	path = Vendor/RmlUi
+	url = https://github.com/mikke89/RmlUi
+[submodule "Vendor/box2d"]
+	path = Vendor/box2d
+	url = https://github.com/erincatto/box2d
+[submodule "Vendor/freetype"]
+	path = Vendor/freetype
+	url = https://github.com/freetype/freetype

.vscode/settings.json

@@ -19,6 +19,15 @@
         "initializer_list": "cpp",
         "random": "cpp",
         "span": "cpp",
-        "xstring": "cpp"
+        "xstring": "cpp",
+        "cstddef": "cpp",
+        "algorithm": "cpp",
+        "expected": "cpp",
+        "optional": "cpp",
+        "regex": "cpp",
+        "system_error": "cpp",
+        "xlocmon": "cpp",
+        "xiosbase": "cpp",
+        "map": "cpp"
     }
 }

Src/IAESandbox/imp/cpp/Game.cpp

@@ -2,7 +2,9 @@
 
 #include <IAEngine/Input.hpp>
 #include <IAEngine/Rendering/Camera.hpp>
+#include <IAEngine/Rendering/DebugDraw.hpp>
 #include <IAEngine/Components/SpriteRenderer.hpp>
+#include <IAEngine/Components/Physics.hpp>
 
 #include <IACore/File.hpp>
 
@@ -11,12 +13,12 @@ namespace ia::iae::game
     RefPtr<Scene> scene;
 
     RefPtr<Node> g_player;
+    PhysicsComponent* g_playerPhysics;
 
     VOID Game::Initialize()
     {
         scene = Engine::CreateScene();
         scene->YSortingEnabled() = true;
-        Engine::ChangeScene(scene.get());
 
         g_player = MakeRefPtr<Node>();
         {
@@ -25,14 +27,26 @@ namespace ia::iae::game
                 .ShouldLoop = true,
                 .Keys = {
                     SpriteRendererComponent::AnimationKeyFrame {
-                        .Scale = {0.1f, 0.1f, 0.1f},
-                        .Texture = Engine::CreateTexture(File::ReadToVector("Graphics/green.png")),
+                        .Scale = {0.25f, 0.25f},
+                        .ColorOverlay = {0.0f, 0.75f, 0.0f, 1.0f}
                     }
                 },
             });
             t->BakeAnimations();
         }
-        g_player->SetLocalPosition({200, 200, 0});
+        g_playerPhysics = g_player->AddComponent<PhysicsComponent>();
+        g_playerPhysics->IsDynamic() = true;
+        g_playerPhysics->AddCollider({
+            .IsTrigger = false,
+            .Position = {
+                0.0f, 0.0f,
+            },
+            .Size = {
+                25.0f, 25.0f
+            }
+        });
+        g_player->Tags() = NODE_TAG_PLAYER;
+        g_player->SetLocalPosition({200, 300});
 
         const auto obstacle = MakeRefPtr<Node>();
         {
@@ -41,18 +55,31 @@ namespace ia::iae::game
                 .ShouldLoop = true,
                 .Keys = {
                     SpriteRendererComponent::AnimationKeyFrame {
-                        .Scale = {0.25f, 0.25f, 0.1f},
-                        .Texture = Engine::CreateTexture(File::ReadToVector("Graphics/red.png")),
+                        .Scale = {1.0f, 0.5f},
+                        .ColorOverlay = {0.75f, 0.0f, 0.0f, 1.0f}
                     }
                 },
             });
             t->BakeAnimations();
         }
-        obstacle->SortOffset() = 20;
-        obstacle->SetLocalPosition({150, 100, 0});
+        const auto obstaclePhysics = obstacle->AddComponent<PhysicsComponent>();
+        obstaclePhysics->AddCollider({
+            .IsTrigger = false,
+            .Position = {
+                0.0f, 0.0f,
+            },
+            .Size = {
+                100.0f, 50.0f
+            }
+        });
+        obstacle->Tags() = NODE_TAG_GROUND;
+        obstacle->SetLocalSortIndex(20);
+        obstacle->SetLocalPosition({200, 400});
 
         scene->AddNode(g_player);
         scene->AddNode(obstacle);
+
+        Engine::ChangeScene(scene.get());
     }
 
     VOID Game::Terminate()
@@ -61,6 +88,7 @@ namespace ia::iae::game
 
     VOID Game::Update()
     {
-        g_player->SetLocalPosition(g_player->GetLocalPosition() + glm::vec3{Input::GetDirectionalInput(), 0.0f});
+        const auto d = Input::GetDirectionalInput();
+        g_playerPhysics->Move(d);
     }
 }

Src/IAEngine/CMakeLists.txt

@@ -7,16 +7,17 @@ set(IAEngine_Sources
     imp/cpp/Scene.cpp
     imp/cpp/Random.cpp
     imp/cpp/Texture.cpp
+    imp/cpp/UI.cpp
 
     imp/cpp/Rendering/Camera.cpp
     imp/cpp/Rendering/Renderer.cpp
     imp/cpp/Rendering/GPUBuffer.cpp
     imp/cpp/Rendering/GPUTexture.cpp
-
-    imp/cpp/Rendering/Mesh/Quad.cpp
+    imp/cpp/Rendering/DebugDraw.cpp
 
     imp/cpp/Rendering/Pipeline/Pipeline.cpp
     imp/cpp/Rendering/Pipeline/UnlitMesh.cpp
+    imp/cpp/Rendering/Pipeline/PostProcess.cpp
 
     imp/cpp/Physics/Physics.cpp
 
@@ -26,12 +27,11 @@ set(IAEngine_Sources
     imp/cpp/Nodes/Node.cpp
 
     imp/cpp/Components/AtlasRenderer.cpp
-    imp/cpp/Components/BoxCollider2D.cpp
     imp/cpp/Components/SpriteRenderer.cpp
     imp/cpp/Components/SoundEmitter.cpp
     imp/cpp/Components/ParticleEmitter.cpp
-    imp/cpp/Components/PhysicsBody.cpp
     imp/cpp/Components/TextureRenderer.cpp
+    imp/cpp/Components/Physics.cpp
 )
 
 add_library(IAEngine STATIC ${IAEngine_Sources})
@@ -40,4 +40,4 @@ target_include_directories(IAEngine PUBLIC inc/)
 target_include_directories(IAEngine PRIVATE imp/hpp)
 
 target_link_libraries(IAEngine PUBLIC IACore ImGui glm::glm)
-target_link_libraries(IAEngine PRIVATE SDL3::SDL3 SDL3_mixer::SDL3_mixer)
+target_link_libraries(IAEngine PRIVATE SDL3::SDL3 SDL3_mixer::SDL3_mixer RmlUi::RmlUi)

Src/IAEngine/imp/cpp/Audio.cpp

@@ -19,12 +19,26 @@
 #include <SDL3/SDL_iostream.h>
 #include <SDL3_mixer/SDL_mixer.h>
 
+#include <condition_variable>
 #include <thread>
 
 namespace ia::iae
 {
+    struct TrackData
+    {
+        BOOL IsActive{};
+        MIX_Track *Track{};
+        INT32 LoopTimes{};
+        TimePeriod LoopDelay{};
+        std::thread *PlaybackThread;
+
+        std::mutex Mutex;
+        std::condition_variable CV;
+    };
+
     MIX_Mixer *g_mixer{};
-    Vector<MIX_Track *> g_tracks;
+    Vector<TrackData*> g_tracks;
+    Vector<INT64> g_destroyQueue;
     Vector<MIX_Audio *> g_audioData;
 
     VOID Audio::Initialize()
@@ -38,7 +52,48 @@ namespace ia::iae
 
     VOID Audio::Terminate()
     {
+        for (SIZE_T i = 0; i < g_tracks.size(); i++)
+        {
+            {
+                std::lock_guard<std::mutex> lock(g_tracks[i]->Mutex);
+                g_tracks[i]->IsActive = false;
+            }
+            g_tracks[i]->CV.notify_one();
+            g_tracks[i]->PlaybackThread->join();
+            delete g_tracks[i];
+        }
+        MIX_StopAllTracks(g_mixer, 0);
         g_audioData.clear();
+        g_tracks.clear();
+    }
+
+    VOID Audio::Update()
+    {
+        for (SIZE_T i = 0; i < g_tracks.size(); i++)
+        {
+            auto &t = g_tracks[i];
+            if (!t->IsActive && !MIX_TrackPlaying(t->Track))
+                DestroyTrack(i);
+        }
+
+        // [IATODO]: IMPL: Destroy queue
+    }
+
+    INT64 Audio::CreateTrack()
+    {
+        g_tracks.pushBack(new TrackData{true, MIX_CreateTrack(g_mixer)});
+        return g_tracks.size() - 1;
+    }
+
+    VOID Audio::DestroyTrack(IN INT64 trackHandle)
+    {
+        if(trackHandle >= g_tracks.size())
+            return;
+        auto& t = g_tracks[trackHandle];
+        ClearTrack(trackHandle);
+        MIX_StopTrack(t->Track, 0);
+        t->IsActive = false;
+        g_destroyQueue.pushBack(trackHandle);
     }
 
     Sound Audio::CreateSound(IN PCUINT8 audioData, IN SIZE_T audioDataSize)
@@ -47,62 +102,55 @@ namespace ia::iae
         return Sound(g_audioData.size() - 1);
     }
 
-    INT64 Audio::CreateTrack()
-    {
-        g_tracks.pushBack(MIX_CreateTrack(g_mixer));
-        return g_tracks.size() - 1;
-    }
-
-    VOID Audio::DestroyTrack(IN INT64 trackHandle)
-    {
-        ClearTrack(trackHandle);
-    }
-
     VOID Audio::QueueTrackData(IN INT64 trackHandle, IN INT64 dataHandle)
     {
-        MIX_SetTrackAudio(g_tracks[trackHandle], g_audioData[dataHandle]);
+        MIX_SetTrackAudio(g_tracks[trackHandle]->Track, g_audioData[dataHandle]);
     }
 
     VOID Audio::PlayTrack(IN INT64 trackHandle, IN INT32 loopTimes, IN TimePeriod loopDelay)
     {
-        struct __callback_data
-        {
-            INT32 loopTimes;
-            TimePeriod loopDelay;
-        };
-
-        const auto callbackData = new __callback_data{.loopTimes = loopTimes, .loopDelay = loopDelay};
-
-        MIX_PlayTrack(g_tracks[trackHandle], 0);
-        MIX_SetTrackStoppedCallback(
-            g_tracks[trackHandle],
-            [](PVOID _callbackData, MIX_Track *track) {
-                const auto callbackData = (__callback_data *) _callbackData;
-                if (callbackData->loopTimes < 0)
-                    goto loop_next_iteration;
-                else if (callbackData->loopTimes == 0)
-                    return;
-                else
-                    callbackData->loopTimes -= 1;
-            loop_next_iteration:
-                std::this_thread::sleep_for(std::chrono::milliseconds((INT32) (callbackData->loopDelay.GetValue() * 1000)));
-                MIX_PlayTrack(track, 0);
-            },
-            callbackData);
+        auto &t = g_tracks[trackHandle];
+        t->LoopTimes = loopTimes;
+        t->LoopDelay = loopDelay;
+        if (t->LoopTimes == 0)
+            t->IsActive = false;
+        else
+            t->PlaybackThread = new std::thread([trackHandle]() {
+                auto &t = g_tracks[trackHandle];
+                while (t->IsActive)
+                {
+                    if (MIX_TrackPlaying(t->Track))
+                        continue;
+                    if (t->LoopTimes < 0)
+                        goto loop_next_iteration;
+                    else if (!t->LoopTimes)
+                    {
+                        t->IsActive = false;
+                        return;
+                    }
+                    t->LoopTimes--;
+                loop_next_iteration:
+                    std::unique_lock<std::mutex> lock(t->Mutex);
+                    t->CV.wait_for(lock, std::chrono::milliseconds((INT32) (t->LoopDelay.GetValue() * 1000)),
+                                [t]() { return !t->IsActive; });
+                    MIX_PlayTrack(t->Track, 0);
+                }
+            });
+        MIX_PlayTrack(t->Track, 0);
     }
 
     VOID Audio::ClearTrack(IN INT64 trackHandle)
     {
-        MIX_StopTrack(g_tracks[trackHandle], 0);
+        MIX_StopTrack(g_tracks[trackHandle]->Track, 0);
     }
 
     VOID Audio::PauseTrack(IN INT64 trackHandle)
     {
-        MIX_PauseTrack(g_tracks[trackHandle]);
+        MIX_PauseTrack(g_tracks[trackHandle]->Track);
     }
 
     VOID Audio::ResumeTrack(IN INT64 trackHandle)
     {
-        MIX_ResumeTrack(g_tracks[trackHandle]);
+        MIX_ResumeTrack(g_tracks[trackHandle]->Track);
     }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/Components/AtlasRenderer.cpp

@@ -20,7 +20,7 @@
 
 namespace ia::iae
 {
-    AtlasRendererComponent::AtlasRendererComponent(IN Node *node) : IComponent(node)
+    AtlasRendererComponent::AtlasRendererComponent(IN Node *node) : TextureRendererComponent(node)
     {
     }
 
@@ -40,12 +40,12 @@ namespace ia::iae
         m_tileGrid.m_tileTextures.resize(m_tileGrid.TileCountX * m_tileGrid.TileCountY);
     }
 
-    VOID AtlasRendererComponent::SetGridTileTexture(IN INT32 index, IN Texture texture)
+    VOID AtlasRendererComponent::SetGridTileTexture(IN INT32 index, IN class Texture texture)
     {
         m_tileGrid.m_tileTextures[index] = texture;
     }
 
-    VOID AtlasRendererComponent::SetGridTileTexture(IN INT32 x, IN INT32 y, IN Texture texture)
+    VOID AtlasRendererComponent::SetGridTileTexture(IN INT32 x, IN INT32 y, IN class Texture texture)
     {
         m_tileGrid.m_tileTextures[x + (y * m_tileGrid.TileCountX)] = texture;
     }
@@ -59,7 +59,8 @@ namespace ia::iae
             handles[i] = m_tileGrid.m_tileTextures[i].GetHandle();
         m_bakedGPUTexture = GPUTexture::GridCombine(handles.data(), m_tileGrid.TileCountX, m_tileGrid.TileCountY,
                                                     m_tileGrid.TileWidth, m_tileGrid.TileHeight);
-        m_bakedTexture = Texture(m_bakedGPUTexture->GetHandle(), w, h);
+        m_node->DrawnSize() = {w, h};
+        CurrentTexture() = Texture(m_bakedGPUTexture->GetHandle(), w, h);
     }
 
     VOID AtlasRendererComponent::Update()
@@ -68,7 +69,9 @@ namespace ia::iae
 
     VOID AtlasRendererComponent::Draw()
     {
-        m_bakedTexture.Draw(m_node->SortOffset(), m_node->GetPosition() + m_tileGrid.Position, {1.0f, 1.0f, 1.0f}, 0.0f,
-                            false, false, {1.0f, 1.0f, 1.0f, 1.0f});
+        PositionOffset() = m_tileGrid.Position;
+        ScaleOffset() = {1.0f, 1.0f};
+        IsCameraRelative() = true;
+        TextureRendererComponent::Draw();
     }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/Components/BoxCollider2D.cpp

@@ -1,51 +0,0 @@
-// IAEngine: 2D Game Engine by IA
-// Copyright (C) 2025 IAS (ias@iasoft.dev)
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include <IAEngine/Nodes/Node.hpp>
-#include <IAEngine/Physics/Physics.hpp>
-#include <IAEngine/Components/BoxCollider2D.hpp>
-#include <IAEngine/IAEngine.hpp>
-
-#include <IACore/File.hpp>
-
-namespace ia::iae
-{
-    Texture g_debugBoxTexture{};
-
-    BoxCollider2DComponent::BoxCollider2DComponent(IN Node *node) : IComponent(node)
-    {
-        Physics::AddCollider(this);
-        g_debugBoxTexture = Engine::CreateTexture(File::ReadToVector("Resources/Engine/debug_box.png"));
-    }
-
-    VOID BoxCollider2DComponent::Draw()
-    {
-        //g_debugBoxTexture.Draw(
-        //    0,
-        //    m_node->GetPosition() + glm::vec3{m_shape.x, m_shape.y, 0},
-        //    {m_shape.z/256.0f, m_shape.w/256.0f, 1},
-        //    m_node->GetRotation().z, false, false, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f});
-    }
-
-    VOID BoxCollider2DComponent::Update()
-    {
-        const auto pos = m_node->GetPosition();
-        m_absoluteShape.x = pos.x + m_shape.x;
-        m_absoluteShape.y = pos.y + m_shape.y;
-        m_absoluteShape.z = m_absoluteShape.x + m_shape.z;
-        m_absoluteShape.w = m_absoluteShape.y + m_shape.w;
-    }
-} // namespace ia::iae

Src/IAEngine/imp/cpp/Components/Physics.cpp

@@ -0,0 +1,78 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <IAEngine/Components/Physics.hpp>
+#include <IAEngine/Physics/Physics.hpp>
+#include <IAEngine/Nodes/Node.hpp>
+
+namespace ia::iae
+{
+    PhysicsComponent::PhysicsComponent(IN Node *node) : IComponent(node)
+    {
+        m_physicsHandle = Physics::RegisterComponent(this);
+    }
+
+    PhysicsComponent::~PhysicsComponent()
+    {
+    }
+
+    VOID PhysicsComponent::Draw()
+    {
+    }
+
+    VOID PhysicsComponent::Update()
+    {
+        m_velocity = {};
+    }
+
+    Handle PhysicsComponent::CreateCollider()
+    {
+        m_colliders.pushBack({});
+        return m_colliders.size() - 1;
+    }
+
+    Handle PhysicsComponent::AddCollider(IN Collider collider)
+    {
+        m_colliders.pushBack(collider);
+        return m_colliders.size() - 1;
+    }
+
+    PhysicsComponent::Collider &PhysicsComponent::GetCollider(IN Handle handle)
+    {
+        return m_colliders[handle];
+    }
+
+    VOID PhysicsComponent::Move(IN glm::vec2 direction)
+    {
+        IA_ASSERT(m_isDynamic);
+        const auto v = direction * m_movementSpeed;
+        m_velocity += v;
+        for(const auto& t: m_colliders)
+        {
+            if(!Physics::CanMove(m_physicsHandle, t, v))
+                return;
+        }
+        m_node->SetLocalPosition(m_node->GetLocalPosition() + v);
+    }
+
+    VOID PhysicsComponent::Jump(IN FLOAT32 force)
+    {
+    }
+
+    VOID PhysicsComponent::OnCollision(IN PhysicsComponent *other)
+    {
+    }
+} // namespace ia::iae

Src/IAEngine/imp/cpp/Components/PhysicsBody.cpp

@@ -1,22 +0,0 @@
-// IAEngine: 2D Game Engine by IA
-// Copyright (C) 2025 IAS (ias@iasoft.dev)
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include <IAEngine/Components/PhysicsBody.hpp>
-
-namespace ia::iae
-{
-    
-}

Src/IAEngine/imp/cpp/Components/SpriteRenderer.cpp

@@ -26,10 +26,11 @@ namespace ia::iae
     SpriteRendererComponent::AnimationKeyFrame SpriteRendererComponent::GetKeyFrame(IN INT32 index)
     {
         index %= m_activeAnimation.Keys.size();
-        return m_reverseAnimation ? m_activeAnimation.Keys[m_activeAnimation.Keys.size() - 1 - index] : m_activeAnimation.Keys[index];
+        return m_reverseAnimation ? m_activeAnimation.Keys[m_activeAnimation.Keys.size() - 1 - index]
+                                  : m_activeAnimation.Keys[index];
     }
 
-    SpriteRendererComponent::SpriteRendererComponent(IN Node *node) : IComponent(node)
+    SpriteRendererComponent::SpriteRendererComponent(IN Node *node) : TextureRendererComponent(node)
     {
     }
 
@@ -44,13 +45,24 @@ namespace ia::iae
     VOID SpriteRendererComponent::BakeAnimations()
     {
         if (m_animations.size())
-            SetActiveAnimation(0);
+            ForceSetActiveAnimation(0);
+    }
+
+    VOID SpriteRendererComponent::SetAnimationFrame(IN INT32 animation, IN INT32 frame)
+    {
+        m_activeAnimation = {};
+        m_currentAnimationState = m_animations[animation].Keys[frame];
     }
 
     VOID SpriteRendererComponent::SetActiveAnimation(IN Handle animation)
     {
         if (animation == m_activeAnimationHandle)
             return;
+        ForceSetActiveAnimation(animation);
+    }
+
+    VOID SpriteRendererComponent::ForceSetActiveAnimation(IN Handle animation)
+    {
         IA_RELEASE_ASSERT((animation != INVALID_HANDLE) && (animation < m_animations.size()));
         m_prevAnimationKeyFrameIndex = 0;
         m_activeAnimation = m_animations[animation];
@@ -60,6 +72,10 @@ namespace ia::iae
 
         m_currentAnimationState = m_prevAnimationKeyFrame;
         m_activeAnimationHandle = animation;
+
+        CurrentTexture() = m_currentAnimationState.Texture;
+        m_node->DrawnSize() =
+            m_node->GetScale() * m_currentAnimationState.Texture.GetExtent() * m_currentAnimationState.Scale;
     }
 
     VOID SpriteRendererComponent::Update()
@@ -69,17 +85,19 @@ namespace ia::iae
 
     VOID SpriteRendererComponent::Draw()
     {
-        Renderer::SetParallaxFactor(m_parallaxFactor);
         const auto &animFrame = m_currentAnimationState;
-        animFrame.Texture.Draw(m_node->SortOffset() + m_sortOffset, m_node->GetPosition() + animFrame.Position,
-                               m_node->GetScale() * animFrame.Scale, m_node->GetRotation().z + animFrame.Rotation.z,
-                               m_isFlippedH, m_isFlippedV, animFrame.ColorOverlay);
+        PositionOffset() = animFrame.Position;
+        ScaleOffset() = animFrame.Scale;
+        RotationOffset() = animFrame.Rotation;
+        ColorOverlay() = animFrame.ColorOverlay;
+        CurrentTexture() = animFrame.Texture;
+        TextureRendererComponent::Draw();
     }
 
     VOID SpriteRendererComponent::UpdateAnimation()
     {
         const auto keyCount = m_activeAnimation.Keys.size();
-        if (!keyCount)
+        if (keyCount <= 1)
             return;
 
         if (m_currentAnimationState.ShouldInterpolate)

Src/IAEngine/imp/cpp/Components/TextureRenderer.cpp

@@ -17,9 +17,12 @@
 #include <IAEngine/Components/TextureRenderer.hpp>
 
 #include <IAEngine/Nodes/Node.hpp>
+#include <IAEngine/Rendering/Renderer.hpp>
 
 namespace ia::iae
 {
+    EXTERN Texture g_whiteStrokeTexture;
+
     TextureRendererComponent::TextureRendererComponent(IN Node *node) : IComponent(node)
     {
     }
@@ -30,8 +33,22 @@ namespace ia::iae
 
     VOID TextureRendererComponent::Draw()
     {
-        m_texture.Draw(m_node->SortOffset(), m_node->GetPosition() + m_position,
-                       m_node->GetScale(), m_node->GetRotation().z,
-                       false, false, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f});
+        m_node->DrawnSize() = m_node->GetScale() * m_texture.GetExtent() * m_scaleOffset;
+
+        Renderer::SetState_FlippedH(m_isFlippedH);
+        Renderer::SetState_FlippedV(m_isFlippedV);
+        Renderer::SetState_CameraRelative(m_isCameraRelative);
+        Renderer::SetState_TextureOffset(m_textureOffset.x, m_textureOffset.y);
+
+        Renderer::Draw(Renderer::GetMesh_Quad(), m_texture.GetHandle(), m_node->GetPosition() + m_positionOffset,
+                       m_node->DrawnSize(), m_node->GetRotation() + m_rotationOffset, m_node->LayerIndex(),
+                       m_node->GetSortIndex(), m_colorOverlay);
+
+        //if (m_shouldDrawOutline)
+        //{
+        //    Renderer::Draw(Renderer::GetMesh_Quad(), g_whiteStrokeTexture.GetHandle(), m_node->GetPosition() + m_positionOffset,
+        //               m_node->DrawnSize(), m_node->GetRotation() + m_rotationOffset, Renderer::MAX_LAYER_INDEX,
+        //               m_node->GetSortIndex(), m_outlineColor);
+        //}
     }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/IAEngine.cpp

@@ -22,6 +22,7 @@
 #include <IAEngine/Physics/Physics.hpp>
 #include <IAEngine/Random.hpp>
 #include <IAEngine/Time.hpp>
+#include <IAEngine/UI.hpp>
 
 #include <SDL3/SDL.h>
 
@@ -35,6 +36,8 @@ namespace ia::iae
 {
     CONSTEXPR FLOAT32 GAME_UPDATE_INTERVAL = 1000.0f / 60.0f;
 
+    EXTERN BOOL g_physicsDebugDrawEnabled;
+
     SDL_Event g_event{};
     FLOAT32 g_updateTimer{};
     BOOL g_shouldClose{false};
@@ -71,6 +74,7 @@ namespace ia::iae
         Input::Initialize();
         Audio::Initialize();
         Physics::Initialize();
+        UI::Initialize(config.WindowWidth, config.WindowHeight);
 
         return true;
     }
@@ -82,9 +86,10 @@ namespace ia::iae
         for (auto &t : g_gpuTextureRefs)
             t.reset();
 
-        Renderer::Terminate();
-        Audio::Terminate();
+        UI::Terminate();
         Physics::Terminate();
+        Audio::Terminate();
+        Renderer::Terminate();
 
         SDL_DestroyWindow(g_windowHandle);
 
@@ -106,6 +111,7 @@ namespace ia::iae
         }
         Renderer::BeginFrame();
         RenderGame();
+        UI::Draw();
     }
 
     VOID Engine::EndFrame()
@@ -123,14 +129,21 @@ namespace ia::iae
     {
         ImGui_ImplSDL3_ProcessEvent(&g_event);
         Input::OnEvent(&g_event);
+        UI::OnEvent(&g_event);
     }
 
     VOID Engine::UpdateGame()
     {
+        if(Input::WasKeyPressed(Input::KEY_F6))
+            g_physicsDebugDrawEnabled = !g_physicsDebugDrawEnabled;
+
         Physics::Update();
+        Audio::Update();
 
         if B_LIKELY (g_activeScene)
             g_activeScene->Update();
+
+        UI::Update();
     }
 
     VOID Engine::RenderGame()
@@ -141,7 +154,10 @@ namespace ia::iae
 
     VOID Engine::ChangeScene(IN Scene *scene)
     {
+        if(g_activeScene)
+            g_activeScene->OnDeactivate();
         g_activeScene = scene;
+        g_activeScene->OnActivate();
     }
 
     Scene *Engine::GetActiveScene()

Src/IAEngine/imp/cpp/Input.cpp

@@ -20,6 +20,8 @@
 
 namespace ia::iae
 {
+    EXTERN SDL_Window *g_windowHandle;
+
     struct InputDirection
     {
         glm::vec2 Velocity{};
@@ -29,15 +31,15 @@ namespace ia::iae
     STATIC CONSTEXPR InputDirection INPUT_TO_DIRECTION_MAP[] = {
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* 0 */
         {glm::vec2{1.0f, 0.0f}, Input::DirectionalInput::RIGHT},      /* D */
-        {glm::vec2{-1.0f, 0.0f}, Input::DirectionalInput::LEFT},       /* A */
+        {glm::vec2{-1.0f, 0.0f}, Input::DirectionalInput::LEFT},      /* A */
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* A, D */
         {glm::vec2{0.0f, 1.0f}, Input::DirectionalInput::DOWN},       /* S */
         {glm::vec2{1.0f, 1.0f}, Input::DirectionalInput::DOWN_RIGHT}, /* S, D */
-        {glm::vec2{-1.0f, 1.0f}, Input::DirectionalInput::DOWN_LEFT},  /* S, A */
+        {glm::vec2{-1.0f, 1.0f}, Input::DirectionalInput::DOWN_LEFT}, /* S, A */
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* S, A, D */
-        {glm::vec2{0.0f, -1.0f}, Input::DirectionalInput::UP},         /* W */
-        {glm::vec2{1.0f, -1.0f}, Input::DirectionalInput::UP_RIGHT},   /* W, D */
-        {glm::vec2{-1.0f, -1.0f}, Input::DirectionalInput::UP_LEFT},    /* W, A */
+        {glm::vec2{0.0f, -1.0f}, Input::DirectionalInput::UP},        /* W */
+        {glm::vec2{1.0f, -1.0f}, Input::DirectionalInput::UP_RIGHT},  /* W, D */
+        {glm::vec2{-1.0f, -1.0f}, Input::DirectionalInput::UP_LEFT},  /* W, A */
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* W, A, D */
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* W, S */
         {glm::vec2{0.0f, 0.0f}, Input::DirectionalInput::NONE},       /* W, S, D */
@@ -56,6 +58,7 @@ namespace ia::iae
 
     VOID Input::OnEvent(IN PVOID _event)
     {
+        memcpy(s_prevKeys, s_keys, sizeof(s_prevKeys));
         const auto event = (SDL_Event *) _event;
         if (event->type == SDL_EVENT_KEY_DOWN)
         {
@@ -65,7 +68,6 @@ namespace ia::iae
         {
             s_keys[event->key.scancode] = false;
         }
-        memcpy(s_prevKeys, s_keys, sizeof(s_prevKeys));
     }
 
     glm::vec2 Input::GetDirectionalInput()
@@ -82,4 +84,14 @@ namespace ia::iae
         direction = dir.Direction;
         return dir.Velocity;
     }
+
+    VOID Input::StartTextInput()
+    {
+        SDL_StartTextInput(g_windowHandle);
+    }
+
+    VOID Input::StopTextInput()
+    {
+        SDL_StopTextInput(g_windowHandle);
+    }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/Nodes/Node.cpp

@@ -72,9 +72,10 @@ namespace ia::iae
             c->Disable();
     }
 
-    VOID Node::AddChild(IN RefPtr<Node> node)
+    Node* Node::AddChild(IN RefPtr<Node> node)
     {
         m_children.pushBack(node);
+        return node.get();
     }
 
     VOID Node::AddComponent(IN RefPtr<IComponent> component)

Src/IAEngine/imp/cpp/Physics/Physics.cpp

@@ -14,13 +14,21 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+#include <IAEngine/IAEngine.hpp>
 #include <IAEngine/Physics/Physics.hpp>
+#include <IAEngine/Rendering/DebugDraw.hpp>
+#include <IAEngine/Rendering/Camera.hpp>
+#include <IAEngine/Rendering/Renderer.hpp>
 
 #include <IAEngine/Nodes/Node.hpp>
 
+#include <map>
+
 namespace ia::iae
 {
-    Vector<BoxCollider2DComponent *> g_colliders;
+    BOOL g_physicsDebugDrawEnabled = false;
+
+    Vector<PhysicsComponent *> g_physicsComponents;
 
     VOID Physics::Initialize()
     {
@@ -30,40 +38,59 @@ namespace ia::iae
     {
     }
 
-    INLINE BOOL IsIntersectingH(IN CONST glm::vec4 &shape, IN FLOAT32 x)
-    {
-        return (x >= shape.x) && (x <= shape.z);
-    }
-
-    INLINE BOOL IsIntersectingV(IN CONST glm::vec4 &shape, IN FLOAT32 y)
-    {
-        return (y >= shape.y) && (y <= shape.w);
-    }
-
     VOID Physics::Update()
     {
-        for (SIZE_T i = 0; i < g_colliders.size(); i++)
+    }
+
+    VOID Physics::DebugDraw()
+    {
+        if(!g_physicsDebugDrawEnabled)
+            return;
+        
+        for(const auto& t: g_physicsComponents)
         {
-            for (SIZE_T j = i + 1; j < g_colliders.size(); j++)
+            for(const auto& c: t->Colliders())
             {
-                const auto boxA = g_colliders[i]->AbsoluteShape();
-                const auto boxB = g_colliders[j]->AbsoluteShape();
-                const auto nodeA = g_colliders[i]->GetNode();
-                
-                if(IsIntersectingH(boxB, boxA.z) && (IsIntersectingV(boxB, boxA.y) || IsIntersectingV(boxB, boxA.w)))
-                    nodeA->SetLocalPosition(nodeA->GetLocalPosition() + glm::vec3(-boxA.z + boxB.x, 0, 0));
-                else if(IsIntersectingH(boxB, boxA.x) && (IsIntersectingV(boxB, boxA.y) || IsIntersectingV(boxB, boxA.w)))
-                    nodeA->SetLocalPosition(nodeA->GetLocalPosition() + glm::vec3(-boxA.x + boxB.z, 0, 0));
-                else if(IsIntersectingV(boxB, boxA.w) && (IsIntersectingH(boxB, boxA.x) || IsIntersectingH(boxB, boxA.z)))
-                    nodeA->SetLocalPosition(nodeA->GetLocalPosition() + glm::vec3(0, -boxA.w + boxB.y, 0));
-                else if(IsIntersectingV(boxB, boxA.y) && (IsIntersectingH(boxB, boxA.x) || IsIntersectingH(boxB, boxA.z)))
-                    nodeA->SetLocalPosition(nodeA->GetLocalPosition() + glm::vec3(0, -boxA.y + boxB.w, 0));
+                auto color = glm::vec4{0.75f, 0.0f, 0.0f, 1.0f};
+                if(c.IsTrigger)
+                    color = {0.25f, 0.45f, 0.75f, 0.75f};
+                DebugDraw::DrawRect(t->GetNode()->GetPosition() + c.Position - Renderer::GetCamera()->Position(), c.Size, color, 2.0f);
             }
         }
     }
 
-    VOID Physics::AddCollider(IN BoxCollider2DComponent *collider)
+    Handle Physics::RegisterComponent(IN PhysicsComponent *component)
     {
-        g_colliders.pushBack(collider);
+        g_physicsComponents.pushBack(component);
+        return g_physicsComponents.size() - 1;
+    }
+
+    BOOL Physics::CanMove(IN Handle handle, IN CONST PhysicsComponent::Collider &collider, IN glm::vec2 movement)
+    {
+        const auto comp = g_physicsComponents[handle];
+        const auto pos = comp->GetNode()->GetPosition() + movement + collider.Position;
+        for (const auto &t : g_physicsComponents)
+        {
+            if (t == comp)
+                continue;
+            for (const auto &tc : t->Colliders())
+            {
+                const auto tPos = t->GetNode()->GetPosition() + tc.Position;
+                const auto xColliding = ((pos.x + collider.Size.x) >= tPos.x) && ((tPos.x + tc.Size.x) >= pos.x);
+                const auto yColliding = ((pos.y + collider.Size.y) >= tPos.y) && ((tPos.y + tc.Size.y) >= pos.y);     
+                if (xColliding && yColliding)
+                {
+                    // Collision callback
+                    comp->OnCollision(t);
+                    t->OnCollision(comp);
+
+                    // Overlap block
+                    if (tc.IsTrigger)
+                        continue;
+                    return false;
+                }
+            }
+        }
+        return true;
     }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/Rendering/DebugDraw.cpp

@@ -0,0 +1,130 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <IAEngine/IAEngine.hpp>
+#include <IAEngine/Rendering/Camera.hpp>
+#include <IAEngine/Rendering/DebugDraw.hpp>
+#include <IAEngine/Rendering/GPUBuffer.hpp>
+#include <IAEngine/Rendering/GPUTexture.hpp>
+#include <IAEngine/Rendering/Pipeline/UnlitMesh.hpp>
+#include <IAEngine/Rendering/Renderer.hpp>
+#include <IAEngine/Physics/Physics.hpp>
+
+#include <SDL3/SDL_gpu.h>
+
+#include <backends/imgui_impl_sdl3.h>
+#include <backends/imgui_impl_sdlgpu3.h>
+
+namespace ia::iae
+{
+    EXTERN SDL_Window *g_windowHandle;
+    EXTERN SDL_GPUDevice *g_gpuDevice;
+
+    ImGuiIO g_imGUIIO{};
+
+    struct UIWindow
+    {
+        PCCHAR Title{""};
+        glm::vec2 Position{};
+        glm::vec2 Size{};
+        std::function<VOID()> ContentDrawCallback{};
+        BOOL Visibility{true};
+    };
+
+    Vector<UIWindow> g_debugUIWindows;
+
+    VOID DebugDraw::Initailize()
+    {
+        const auto mainScale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
+
+        IMGUI_CHECKVERSION();
+        ImGui::CreateContext();
+        g_imGUIIO = ImGui::GetIO();
+        g_imGUIIO.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+        g_imGUIIO.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
+
+        ImGui::StyleColorsClassic();
+
+        ImGuiStyle &style = ImGui::GetStyle();
+        style.ScaleAllSizes(mainScale);
+        style.FontScaleDpi = mainScale;
+
+        ImGui_ImplSDLGPU3_InitInfo initInfo{.Device = g_gpuDevice,
+                                            .ColorTargetFormat =
+                                                SDL_GetGPUSwapchainTextureFormat(g_gpuDevice, g_windowHandle),
+                                            .PresentMode = SDL_GPU_PRESENTMODE_VSYNC};
+        ImGui_ImplSDL3_InitForSDLGPU(g_windowHandle);
+        ImGui_ImplSDLGPU3_Init(&initInfo);
+    }
+
+    VOID DebugDraw::Terminate()
+    {
+        ImGui_ImplSDL3_Shutdown();
+        ImGui_ImplSDLGPU3_Shutdown();
+        ImGui::DestroyContext();
+    }
+
+    VOID DebugDraw::Draw()
+    {
+        for (const auto &w : g_debugUIWindows)
+        {
+            if (!w.Visibility)
+                continue;
+            ImGui::Begin(w.Title);
+            ImGui::SetWindowPos({w.Position.x, w.Position.y});
+            ImGui::SetWindowSize({w.Size.x, w.Size.y});
+            w.ContentDrawCallback();
+            ImGui::End();
+        }
+        Physics::DebugDraw();
+    }
+
+    VOID DebugDraw::DrawLine(IN CONST glm::vec2 &from, IN CONST glm::vec2 &to, IN CONST glm::vec4 &color,
+                             IN FLOAT32 thickness)
+    {
+        const auto drawList = ImGui::GetForegroundDrawList();
+        drawList->AddLine(ImVec2(from.x, from.y), ImVec2(to.x, to.y), IM_COL32(color.x * 255, color.y * 255, color.z * 255, color.w * 255), thickness);
+    }
+
+    VOID DebugDraw::DrawRect(IN CONST glm::vec2 &position, IN CONST glm::vec2 &size, IN CONST glm::vec4 &color, IN FLOAT32 thickness)
+    {
+        const auto drawList = ImGui::GetForegroundDrawList();
+        drawList->AddRect(ImVec2(position.x, position.y), ImVec2(position.x + size.x, position.y + size.y), IM_COL32(color.x * 255, color.y * 255, color.z * 255, color.w * 255), 0.0f, 0, thickness);
+    }
+
+    VOID DebugDraw::DrawRectFilled(IN CONST glm::vec2 &position, IN CONST glm::vec2 &size, IN CONST glm::vec4 &color)
+    {
+        const auto drawList = ImGui::GetForegroundDrawList();
+        drawList->AddRectFilled(ImVec2(position.x, position.y), ImVec2(position.x + size.x, position.y + size.y), IM_COL32(color.x * 255, color.y * 255, color.z * 255, color.w * 255));
+    }
+
+    Handle DebugDraw::AddUIWindow(IN PCCHAR title, IN CONST glm::vec2 &position, IN CONST glm::vec2 &size,
+                                  IN std::function<VOID()> contentDrawCallback)
+    {
+        g_debugUIWindows.pushBack(UIWindow{title, position, size, contentDrawCallback});
+        return g_debugUIWindows.size() - 1;
+    }
+
+    VOID DebugDraw::SetUIWindowVisibility(IN Handle handle, IN BOOL visible)
+    {
+        g_debugUIWindows[handle].Visibility = visible;
+    }
+
+    VOID DebugDraw::ToggleUIWindowVisibility(IN Handle handle)
+    {
+        g_debugUIWindows[handle].Visibility = !g_debugUIWindows[handle].Visibility;
+    }
+} // namespace ia::iae

Src/IAEngine/imp/cpp/Rendering/GPUBuffer.cpp

@@ -78,6 +78,7 @@ namespace ia::iae
 
             SDL_EndGPUCopyPass(copyPass);
             SDL_SubmitGPUCommandBuffer(cmdBuffer);
+            SDL_WaitForGPUIdle(g_gpuDevice);
         }
 
         res->m_handle = (Handle) handle;

Src/IAEngine/imp/cpp/Rendering/GPUTexture.cpp

@@ -34,8 +34,7 @@ namespace ia::iae
                                             .address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
                                             .address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
                                             .address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
-                                            .max_anisotropy = 1.0f,
-                                            .enable_anisotropy = true};
+                                            .enable_anisotropy = false};
         g_defaultSampler = SDL_CreateGPUSampler(g_gpuDevice, &createInfo);
     }
 
@@ -83,6 +82,7 @@ namespace ia::iae
         SDL_UploadToGPUTexture(copyPass, &transferInfo, &region, false);
         SDL_EndGPUCopyPass(copyPass);
         SDL_SubmitGPUCommandBuffer(cmdBuffer);
+        SDL_WaitForGPUIdle(g_gpuDevice);
         SDL_ReleaseGPUTransferBuffer(g_gpuDevice, stagingBuffer);
 
         res->m_handle = (Handle) handle;
@@ -125,6 +125,7 @@ namespace ia::iae
 
         SDL_EndGPUCopyPass(copyPass);
         SDL_SubmitGPUCommandBuffer(cmdBuffer);
+        SDL_WaitForGPUIdle(g_gpuDevice);
 
         res->m_handle = (Handle) handle;
 

Src/IAEngine/imp/cpp/Rendering/Mesh/Quad.cpp

@@ -1,51 +0,0 @@
-// IAEngine: 2D Game Engine by IA
-// Copyright (C) 2025 IAS (ias@iasoft.dev)
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include <IAEngine/Rendering/GPUBuffer.hpp>
-#include <IAEngine/Rendering/Mesh/Quad.hpp>
-#include <IAEngine/Rendering/Renderer.hpp>
-#include <IAEngine/Rendering/Types.hpp>
-
-namespace ia::iae
-{
-    RefPtr<GPUBuffer> g_quadMeshVertexBuffer{};
-
-    VOID QuadMesh::Initialize()
-    {
-        Vertex_Mesh vertices[6] = {
-            {glm::vec3{0, 1, 0}, glm::vec2{0, 1}}, 
-            {glm::vec3{1, 1, 0}, glm::vec2{1, 1}},
-            {glm::vec3{1, 0, 0}, glm::vec2{1, 0}}, 
-            
-            {glm::vec3{1, 0, 0}, glm::vec2{1, 0}},
-            {glm::vec3{0, 0, 0}, glm::vec2{0, 0}}, 
-            {glm::vec3{0, 1, 0}, glm::vec2{0, 1}},
-        };
-        g_quadMeshVertexBuffer = GPUBuffer::Create(GPUBuffer::Usage::VERTEX, &vertices, sizeof(vertices));
-    }
-
-    VOID QuadMesh::Terminate()
-    {
-        if (g_quadMeshVertexBuffer)
-            g_quadMeshVertexBuffer.reset();
-    }
-
-    VOID QuadMesh::Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale,
-                        IN FLOAT32 rotation)
-    {
-        Renderer::Draw(sortOffset, position, scale, rotation, g_quadMeshVertexBuffer->GetHandle(), 6);
-    }
-} // namespace ia::iae

Src/IAEngine/imp/cpp/Rendering/Pipeline/PostProcess.cpp

@@ -0,0 +1,81 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <IAEngine/Rendering/Pipeline/PostProcess.hpp>
+
+#include <SDL3/SDL_gpu.h>
+
+#include <EmbeddedShaders.hpp>
+
+namespace ia::iae
+{
+    EXTERN SDL_GPUDevice *g_gpuDevice;
+    EXTERN SDL_Window *g_windowHandle;
+
+    Pipeline_PostProcess::~Pipeline_PostProcess()
+    {
+        if (m_handle)
+            SDL_ReleaseGPUGraphicsPipeline(g_gpuDevice, (SDL_GPUGraphicsPipeline *) m_handle);
+    }
+
+    RefPtr<Pipeline_PostProcess> Pipeline_PostProcess::Create()
+    {
+        const auto res = MakeRefPtr<Pipeline_PostProcess>();
+
+        const auto vertexShader = LoadShaderFromMemory(ShaderStage::VERTEX, SHADER_SOURCE_POSTPROCESS_VERT,
+                                                       sizeof(SHADER_SOURCE_POSTPROCESS_VERT), 0, 0, 0, 0);
+        const auto pixelShader = LoadShaderFromMemory(ShaderStage::PIXEL, SHADER_SOURCE_POSTPROCESS_FRAG,
+                                                      sizeof(SHADER_SOURCE_POSTPROCESS_FRAG), 2, 0, 0, 0);
+
+        SDL_GPUColorTargetDescription colorTargets[] = {{
+            .format = SDL_GetGPUSwapchainTextureFormat(g_gpuDevice, g_windowHandle),
+        }};
+        SDL_GPUGraphicsPipelineCreateInfo createInfo = {
+            .vertex_shader = (SDL_GPUShader *) vertexShader,
+            .fragment_shader = (SDL_GPUShader *) pixelShader,
+            .vertex_input_state = SDL_GPUVertexInputState{.vertex_buffer_descriptions = nullptr,
+                                                          .num_vertex_buffers = 0,
+                                                          .vertex_attributes = nullptr,
+                                                          .num_vertex_attributes = 0},
+            .primitive_type = SDL_GPU_PRIMITIVETYPE_TRIANGLELIST,
+            .rasterizer_state = SDL_GPURasterizerState{.fill_mode = SDL_GPU_FILLMODE_FILL,
+                                                       .cull_mode = SDL_GPU_CULLMODE_NONE,
+                                                       .front_face = SDL_GPU_FRONTFACE_COUNTER_CLOCKWISE},
+            .target_info = {.color_target_descriptions = colorTargets,
+                            .num_color_targets = sizeof(colorTargets) / sizeof(colorTargets[0]),
+                            .has_depth_stencil_target = false},
+        };
+
+        SDL_GPUGraphicsPipeline *handle{};
+        if (!(handle = SDL_CreateGPUGraphicsPipeline(g_gpuDevice, &createInfo)))
+        {
+            IAE_LOG_ERROR("Failed to create a SDL graphics pipeline: ", SDL_GetError());
+            return nullptr;
+        }
+
+        UnloadShader(pixelShader);
+        UnloadShader(vertexShader);
+
+        res->m_handle = (Handle) handle;
+
+        return res;
+    }
+
+    VOID Pipeline_PostProcess::Bind(IN Handle renderPassHandle)
+    {
+        SDL_BindGPUGraphicsPipeline((SDL_GPURenderPass *) renderPassHandle, (SDL_GPUGraphicsPipeline *) m_handle);
+    }
+} // namespace ia::iae

Src/IAEngine/imp/cpp/Rendering/Pipeline/UnlitMesh.cpp

@@ -38,14 +38,14 @@ namespace ia::iae
         const auto vertexShader = LoadShaderFromMemory(ShaderStage::VERTEX, SHADER_SOURCE_UNLITMESH_VERT,
                                                        sizeof(SHADER_SOURCE_UNLITMESH_VERT), 0, 3, 0, 0);
         const auto pixelShader = LoadShaderFromMemory(ShaderStage::PIXEL, SHADER_SOURCE_UNLITMESH_FRAG,
-                                                      sizeof(SHADER_SOURCE_UNLITMESH_FRAG), 1, 2, 0, 0);
+                                                      sizeof(SHADER_SOURCE_UNLITMESH_FRAG), 1, 1, 0, 0);
 
         SDL_GPUColorTargetDescription colorTargets[] = {{
             .format = SDL_GetGPUSwapchainTextureFormat(g_gpuDevice, g_windowHandle),
         }};
         SDL_GPUVertexBufferDescription vertexBuffers[] = {{
             .slot = 0,
-            .pitch = sizeof(Vertex_Mesh),
+            .pitch = sizeof(MeshVertex),
             .input_rate = SDL_GPU_VERTEXINPUTRATE_VERTEX,
             .instance_step_rate = 0,
         }};
@@ -54,7 +54,12 @@ namespace ia::iae
             {.location = 1,
              .buffer_slot = 0,
              .format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT2,
-             .offset = sizeof(glm::vec3)}};
+             .offset = sizeof(glm::vec3)},
+             {.location = 2,
+             .buffer_slot = 0,
+             .format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT4,
+             .offset = sizeof(glm::vec3) + sizeof(glm::vec2)},
+        };
         SDL_GPUGraphicsPipelineCreateInfo createInfo = {
             .vertex_shader = (SDL_GPUShader *) vertexShader,
             .fragment_shader = (SDL_GPUShader *) pixelShader,

Src/IAEngine/imp/cpp/Rendering/Renderer.cpp

@@ -16,9 +16,10 @@
 
 #include <IAEngine/IAEngine.hpp>
 #include <IAEngine/Rendering/Camera.hpp>
+#include <IAEngine/Rendering/DebugDraw.hpp>
 #include <IAEngine/Rendering/GPUBuffer.hpp>
 #include <IAEngine/Rendering/GPUTexture.hpp>
-#include <IAEngine/Rendering/Mesh/Quad.hpp>
+#include <IAEngine/Rendering/Pipeline/PostProcess.hpp>
 #include <IAEngine/Rendering/Pipeline/UnlitMesh.hpp>
 #include <IAEngine/Rendering/Renderer.hpp>
 
@@ -27,27 +28,50 @@
 #include <backends/imgui_impl_sdl3.h>
 #include <backends/imgui_impl_sdlgpu3.h>
 
+namespace ia::iae
+{
+    struct Mesh
+    {
+        INT32 IndexCount{};
+        RefPtr<GPUBuffer> IndexBuffer;
+        RefPtr<GPUBuffer> VertexBuffer;
+    };
+
+    struct RenderState
+    {
+        BOOL FlippedH{false};
+        BOOL FlippedV{false};
+        BOOL CameraRelative{true};
+        BOOL ScissorEnabled{false};
+        glm::vec2 TextureOffset{0.0f, 0.0f};
+        SDL_Rect Scissor{0, 0, 0, 0};
+    };
+
+    Vector<Mesh *> g_meshes{};
+    RenderState g_renderState{};
+} // namespace ia::iae
+
 namespace ia::iae
 {
     EXTERN SDL_Window *g_windowHandle;
 
     INT32 Renderer::s_width{};
     INT32 Renderer::s_height{};
-    Vector<Renderer::DebugUIWindow> Renderer::s_debugUIWindows;
 
     SDL_GPUDevice *g_gpuDevice{};
 
+    ImDrawData *g_imDrawData{};
+
     // Render State
     SDL_GPUCommandBuffer *g_cmdBuffer{};
     SDL_GPURenderPass *g_renderPass{};
     SDL_GPUTexture *g_swpChainTexture{};
     SDL_GPUTexture *g_depthBufferTexture{};
-
-    // ImGUI State
-    ImGuiIO g_imGUIIO{};
-    ImDrawData *g_imDrawData{};
+    SDL_GPUTexture *g_sceneDrawBufferTexture{};
+    SDL_GPUTexture *g_debugDrawBufferTexture{};
 
     RefPtr<Pipeline_UnlitMesh> g_pipelineUnlitMesh;
+    RefPtr<Pipeline_PostProcess> g_pipelinePostProcess;
 
     Camera2D g_camera{};
 
@@ -55,9 +79,17 @@ namespace ia::iae
     glm::mat4 matView{1.0f};
     glm::mat4 matModel{1.0f};
 
-    BOOL g_flipH{false};
-    BOOL g_flipV{false};
-    FLOAT32 g_parallaxFactor{0.0f};
+    glm::mat4 matIdentity{1.0f};
+
+    SDL_Rect g_defaultScissor{};
+
+    Handle g_meshHandleQuad{};
+
+    Texture g_whiteFillTexture{};
+    Texture g_whiteStrokeTexture{};
+
+    SDL_GPUColorTargetInfo colorTargetInfo = {0};
+    SDL_GPUDepthStencilTargetInfo depthStencilTargetInfo = {0};
 
     BOOL Renderer::Initialize()
     {
@@ -77,30 +109,24 @@ namespace ia::iae
         SDL_SetGPUSwapchainParameters(g_gpuDevice, g_windowHandle, SDL_GPU_SWAPCHAINCOMPOSITION_SDR,
                                       SDL_GPU_PRESENTMODE_VSYNC);
 
-        const auto mainScale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
-
-        IMGUI_CHECKVERSION();
-        ImGui::CreateContext();
-        g_imGUIIO = ImGui::GetIO();
-        g_imGUIIO.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
-        g_imGUIIO.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
-
-        ImGui::StyleColorsClassic();
-
-        ImGuiStyle &style = ImGui::GetStyle();
-        style.ScaleAllSizes(mainScale);
-        style.FontScaleDpi = mainScale;
-
-        ImGui_ImplSDLGPU3_InitInfo initInfo{.Device = g_gpuDevice,
-                                            .ColorTargetFormat =
-                                                SDL_GetGPUSwapchainTextureFormat(g_gpuDevice, g_windowHandle),
-                                            .PresentMode = SDL_GPU_PRESENTMODE_VSYNC};
-        ImGui_ImplSDL3_InitForSDLGPU(g_windowHandle);
-        ImGui_ImplSDLGPU3_Init(&initInfo);
+        DebugDraw::Initailize();
 
         if (!GPUBuffer::InitializeStagingBuffer())
             return false;
 
+        {
+            SDL_GPUTextureCreateInfo createInfo{.type = SDL_GPU_TEXTURETYPE_2D,
+                                                .format = SDL_GetGPUSwapchainTextureFormat(g_gpuDevice, g_windowHandle),
+                                                .usage =
+                                                    SDL_GPU_TEXTUREUSAGE_COLOR_TARGET | SDL_GPU_TEXTUREUSAGE_SAMPLER,
+                                                .width = (UINT32) s_width,
+                                                .height = (UINT32) s_height,
+                                                .layer_count_or_depth = 1,
+                                                .num_levels = 1,
+                                                .sample_count = SDL_GPU_SAMPLECOUNT_1};
+            g_sceneDrawBufferTexture = SDL_CreateGPUTexture(g_gpuDevice, &createInfo);
+            g_debugDrawBufferTexture = SDL_CreateGPUTexture(g_gpuDevice, &createInfo);
+        }
         {
             SDL_GPUTextureCreateInfo createInfo{.type = SDL_GPU_TEXTURETYPE_2D,
                                                 .format = SDL_GPU_TEXTUREFORMAT_D16_UNORM,
@@ -116,10 +142,57 @@ namespace ia::iae
         GPUTexture::Initialize();
 
         g_pipelineUnlitMesh = Pipeline_UnlitMesh::Create();
+        g_pipelinePostProcess = Pipeline_PostProcess::Create();
 
-        QuadMesh::Initialize();
+        matProjection = glm::orthoLH(0.0f, (FLOAT32) s_width, (FLOAT32) s_height, 0.0f, -2097152.0f, 2097152.0f);
 
-        matProjection = glm::orthoLH(0.0f, (FLOAT32) s_width, (FLOAT32) s_height, 0.0f, -1000.0f, 1000.0f);
+        g_defaultScissor.x = 0;
+        g_defaultScissor.y = 0;
+        g_defaultScissor.w = s_width;
+        g_defaultScissor.h = s_height;
+
+        { // Generate default textures
+            constexpr auto size = 100;
+            constexpr auto strokeWeight = 2;
+            const auto data = new UINT32[size * size];
+            memset(data, 0, size * size * 4);
+            for (SIZE_T i = 0; i < size; i++)
+            {
+                for (SIZE_T j = 0; j < strokeWeight; j++)
+                {
+                    data[i + (size * j)] = 0xFFFFFFFF;
+                    data[j + (size * i)] = 0xFFFFFFFF;
+                    data[i + (size * (size - 1 - j))] = 0xFFFFFFFF;
+                    data[(size - 1 - j) + (size * i)] = 0xFFFFFFFF;
+                }
+            }
+            g_whiteStrokeTexture = Engine::CreateTexture((PCUINT8) data, size, size);
+            for (SIZE_T i = 0; i < size * size; i++)
+                data[i] = 0xFFFFFFFF;
+            g_whiteFillTexture = Engine::CreateTexture((PCUINT8) data, size, size);
+            delete[] data;
+        }
+
+        g_meshHandleQuad = CreateMesh(
+            {
+                {glm::vec3{0, 1, 0}, glm::vec2{0, 1}, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f}},
+                {glm::vec3{1, 1, 0}, glm::vec2{1, 1}, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f}},
+                {glm::vec3{1, 0, 0}, glm::vec2{1, 0}, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f}},
+                {glm::vec3{0, 0, 0}, glm::vec2{0, 0}, glm::vec4{1.0f, 1.0f, 1.0f, 1.0f}},
+            },
+            {0, 1, 2, 2, 3, 0});
+
+        colorTargetInfo.clear_color = SDL_FColor{0.33f, 0.33f, 0.33f, 1.0f};
+        colorTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
+        colorTargetInfo.store_op = SDL_GPU_STOREOP_STORE;
+
+        depthStencilTargetInfo.cycle = true;
+        depthStencilTargetInfo.clear_depth = 0;
+        depthStencilTargetInfo.clear_stencil = 0;
+        depthStencilTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
+        depthStencilTargetInfo.store_op = SDL_GPU_STOREOP_STORE;
+        depthStencilTargetInfo.stencil_load_op = SDL_GPU_LOADOP_CLEAR;
+        depthStencilTargetInfo.stencil_store_op = SDL_GPU_STOREOP_STORE;
 
         return true;
     }
@@ -128,80 +201,40 @@ namespace ia::iae
     {
         SDL_WaitForGPUIdle(g_gpuDevice);
 
-        g_pipelineUnlitMesh.reset();
+        for (auto &mesh : g_meshes)
+        {
+            mesh->VertexBuffer.reset();
+            mesh->IndexBuffer.reset();
+            delete mesh;
+        }
 
-        QuadMesh::Terminate();
+        g_pipelineUnlitMesh.reset();
+        g_pipelinePostProcess.reset();
 
         GPUTexture::Terminate();
 
         GPUBuffer::TerminateStagingBuffer();
 
         SDL_ReleaseGPUTexture(g_gpuDevice, g_depthBufferTexture);
+        SDL_ReleaseGPUTexture(g_gpuDevice, g_sceneDrawBufferTexture);
+        SDL_ReleaseGPUTexture(g_gpuDevice, g_debugDrawBufferTexture);
 
-        ImGui_ImplSDL3_Shutdown();
-        ImGui_ImplSDLGPU3_Shutdown();
-        ImGui::DestroyContext();
+        DebugDraw::Terminate();
 
         SDL_ReleaseWindowFromGPUDevice(g_gpuDevice, g_windowHandle);
         SDL_DestroyGPUDevice(g_gpuDevice);
     }
 
-    VOID Renderer::AddDebugUIWindow(IN PCCHAR title, IN CONST glm::vec2 &position, IN CONST glm::vec2 &size,
-                                    IN std::function<VOID()> contentDrawCallback)
-    {
-        s_debugUIWindows.pushBack(DebugUIWindow{title, position, size, contentDrawCallback});
-    }
-
     VOID Renderer::BeginFrame()
     {
-        ImGui_ImplSDLGPU3_NewFrame();
-        ImGui_ImplSDL3_NewFrame();
-        ImGui::NewFrame();
-        for (const auto &w : s_debugUIWindows)
-        {
-            ImGui::Begin(w.Title);
-            ImGui::SetWindowPos({w.Position.x, w.Position.y});
-            ImGui::SetWindowSize({w.Size.x, w.Size.y});
-            w.ContentDrawCallback();
-            ImGui::End();
-        }
-        ImGui::Render();
-
         if (!(g_cmdBuffer = SDL_AcquireGPUCommandBuffer(g_gpuDevice)))
         {
             IAE_LOG_ERROR("Couldn't acquire SDL3 GPU command buffer: ", SDL_GetError());
             return;
         }
 
-        if (!SDL_WaitAndAcquireGPUSwapchainTexture(g_cmdBuffer, g_windowHandle, &g_swpChainTexture, (PUINT32) &s_width,
-                                                   (PUINT32) &s_height))
-        {
-            IAE_LOG_ERROR("Couldn't acquire SDL3 GPU Swapchain texture: ", SDL_GetError());
-            return;
-        }
-
-        if (!g_swpChainTexture)
-            return;
-
-        g_imDrawData = ImGui::GetDrawData();
-
-        ImGui_ImplSDLGPU3_PrepareDrawData(g_imDrawData, g_cmdBuffer);
-
-        SDL_GPUColorTargetInfo colorTargetInfo = {0};
-        colorTargetInfo.texture = g_swpChainTexture;
-        colorTargetInfo.clear_color = SDL_FColor{0.33f, 0.33f, 0.33f, 1.0f};
-        colorTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
-        colorTargetInfo.store_op = SDL_GPU_STOREOP_STORE;
-
-        SDL_GPUDepthStencilTargetInfo depthStencilTargetInfo = {0};
+        colorTargetInfo.texture = g_sceneDrawBufferTexture;
         depthStencilTargetInfo.texture = g_depthBufferTexture;
-        depthStencilTargetInfo.cycle = true;
-        depthStencilTargetInfo.clear_depth = 0;
-        depthStencilTargetInfo.clear_stencil = 0;
-        depthStencilTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
-        depthStencilTargetInfo.store_op = SDL_GPU_STOREOP_STORE;
-        depthStencilTargetInfo.stencil_load_op = SDL_GPU_LOADOP_CLEAR;
-        depthStencilTargetInfo.stencil_store_op = SDL_GPU_STOREOP_STORE;
 
         g_renderPass = SDL_BeginGPURenderPass(g_cmdBuffer, &colorTargetInfo, 1, &depthStencilTargetInfo);
 
@@ -213,93 +246,172 @@ namespace ia::iae
 
     VOID Renderer::EndFrame()
     {
+        SDL_EndGPURenderPass(g_renderPass);
+
+        ImGui_ImplSDLGPU3_NewFrame();
+        ImGui_ImplSDL3_NewFrame();
+        ImGui::NewFrame();
+        DebugDraw::Draw();
+        ImGui::Render();
+        g_imDrawData = ImGui::GetDrawData();
+        ImGui_ImplSDLGPU3_PrepareDrawData(g_imDrawData, g_cmdBuffer);
+        colorTargetInfo.texture = g_debugDrawBufferTexture;
+        g_renderPass = SDL_BeginGPURenderPass(g_cmdBuffer, &colorTargetInfo, 1, nullptr);
+        ImGui_ImplSDLGPU3_RenderDrawData(g_imDrawData, g_cmdBuffer, g_renderPass);
+        SDL_EndGPURenderPass(g_renderPass);
+
+        if (!SDL_WaitAndAcquireGPUSwapchainTexture(g_cmdBuffer, g_windowHandle, &g_swpChainTexture, (PUINT32) &s_width,
+                                                   (PUINT32) &s_height))
+        {
+            IAE_LOG_ERROR("Couldn't acquire SDL3 GPU Swapchain texture: ", SDL_GetError());
+            return;
+        }
+
         if (!g_swpChainTexture)
             return;
 
-        ImGui_ImplSDLGPU3_RenderDrawData(g_imDrawData, g_cmdBuffer, g_renderPass);
+        colorTargetInfo.texture = g_swpChainTexture;
+
+        g_renderPass = SDL_BeginGPURenderPass(g_cmdBuffer, &colorTargetInfo, 1, nullptr);
+        g_pipelinePostProcess->Bind((Handle) g_renderPass);
+        SDL_GPUTextureSamplerBinding textureBindings[2] = {
+            {
+                .texture = g_sceneDrawBufferTexture,
+                .sampler = (SDL_GPUSampler*)GPUTexture::GetDefaultSampler()
+            },
+            {
+                .texture = g_debugDrawBufferTexture,
+                .sampler = (SDL_GPUSampler*)GPUTexture::GetDefaultSampler()
+            },
+        };
+        SDL_BindGPUFragmentSamplers(g_renderPass, 0, textureBindings, 2);
+        SDL_DrawGPUPrimitives(g_renderPass, 6, 1, 0, 0);
         SDL_EndGPURenderPass(g_renderPass);
+
         SDL_SubmitGPUCommandBuffer(g_cmdBuffer);
     }
 
-    VOID Renderer::SetFlipH(IN BOOL value)
+    VOID Renderer::SetState_FlippedH(IN BOOL value)
     {
-        g_flipH = value;
+        g_renderState.FlippedH = value;
     }
 
-    VOID Renderer::SetFlipV(IN BOOL value)
+    VOID Renderer::SetState_FlippedV(IN BOOL value)
     {
-        g_flipV = value;
+        g_renderState.FlippedV = value;
     }
 
-    VOID Renderer::BindTexture(IN Handle handle, IN CONST glm::vec4 &colorOverlay)
+    VOID Renderer::SetState_CameraRelative(IN BOOL value)
     {
-        SDL_GPUTextureSamplerBinding binding{.texture = (SDL_GPUTexture *) handle,
-                                             .sampler = (SDL_GPUSampler *) GPUTexture::GetDefaultSampler()};
-        SDL_BindGPUFragmentSamplers(g_renderPass, 0, &binding, 1);
-        SDL_PushGPUFragmentUniformData(g_cmdBuffer, 0, &colorOverlay, sizeof(colorOverlay));
+        g_renderState.CameraRelative = value;
     }
 
-    VOID SetModelTransformMatrix(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale,
-                                 IN FLOAT32 rotation)
+    VOID Renderer::SetState_ScissorEnabled(IN BOOL value)
     {
-        if (g_parallaxFactor <= 0.0f)
-            matView = g_camera.GetViewMatrix();
-        else
-            matView = glm::mat4(1.0f);
-        SDL_PushGPUVertexUniformData(g_cmdBuffer, 1, &matView, sizeof(matView));
-        FLOAT32 shaderParallaxFactor = g_parallaxFactor * g_camera.Position().x / 640.0f;
-        SDL_PushGPUFragmentUniformData(g_cmdBuffer, 1, &shaderParallaxFactor, sizeof(shaderParallaxFactor));
-
-        matModel = glm::mat4(1.0f);
-
-        glm::vec3 poff = {0.0f, 0.0f, 0.0f};
-
-        const auto f = 1.0f;
-        if(g_flipH)
-        {
-            poff.x = scale.x * f;
-        }
-
-        // [IATODO]: IMPL Flip V
-
-        const auto depthTestOffset = sortOffset + (Engine::GetActiveScene()->YSortingEnabled() ? position.y : 0);
-        matModel =
-            glm::translate(matModel, {position.x + poff.x, position.y,
-                                      position.z + depthTestOffset + (g_parallaxFactor < 0.0f ? 0.0f : -100.0f)});
-        matModel = glm::rotate(matModel, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
-        matModel = glm::scale(matModel, scale * (g_flipH ? glm::vec3{-1.0f, 1.0f, 1.0f} : glm::vec3{1.0f, 1.0f, 1.0f}));
-
-        SDL_PushGPUVertexUniformData(g_cmdBuffer, 2, &matModel, sizeof(matModel));
+        g_renderState.ScissorEnabled = value;
     }
 
-    VOID Renderer::Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale,
-                        IN FLOAT32 rotation, IN Handle vertexBufferHandle, IN INT32 vertexCount)
+    VOID Renderer::SetState_Scissor(IN CONST glm::vec4 &region)
     {
-        SetModelTransformMatrix(sortOffset, position, scale, rotation);
-        SDL_GPUBufferBinding bindings[] = {{.buffer = (SDL_GPUBuffer *) vertexBufferHandle, .offset = 0}};
-        SDL_BindGPUVertexBuffers(g_renderPass, 0, bindings, 1);
-        SDL_DrawGPUPrimitives(g_renderPass, vertexCount, 1, 0, 0);
+        g_renderState.Scissor.x = region.x;
+        g_renderState.Scissor.y = region.y;
+        g_renderState.Scissor.w = region.z;
+        g_renderState.Scissor.h = region.w;
     }
 
-    VOID Renderer::Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale,
-                        IN FLOAT32 rotation, IN Handle vertexBufferHandle, IN Handle indexBufferHandle,
-                        IN INT32 indexCount)
+    VOID Renderer::SetState_TextureOffset(IN FLOAT32 u, IN FLOAT32 v)
     {
-        SetModelTransformMatrix(sortOffset, position, scale, rotation);
-        SDL_GPUBufferBinding bindings[] = {{.buffer = (SDL_GPUBuffer *) vertexBufferHandle, .offset = 0},
-                                           {.buffer = (SDL_GPUBuffer *) indexBufferHandle, .offset = 0}};
-        SDL_BindGPUVertexBuffers(g_renderPass, 0, bindings, 1);
-        SDL_BindGPUIndexBuffer(g_renderPass, &bindings[1], SDL_GPU_INDEXELEMENTSIZE_32BIT);
-        SDL_DrawGPUIndexedPrimitives(g_renderPass, indexCount, 1, 0, 0, 0);
+        g_renderState.TextureOffset = {u, v};
     }
 
     Camera2D *Renderer::GetCamera()
     {
         return &g_camera;
     }
-
-    VOID Renderer::SetParallaxFactor(IN FLOAT32 value)
-    {
-        g_parallaxFactor = value;
-    }
 } // namespace ia::iae
+
+namespace ia::iae
+{
+    Handle Renderer::GetMesh_Quad()
+    {
+        return g_meshHandleQuad;
+    }
+
+    Handle Renderer::CreateMesh(IN CONST Vector<MeshVertex> &vertices, IN CONST Vector<INT32> &indices)
+    {
+        const auto mesh = CreateUnmanagedMesh(vertices, indices);
+        g_meshes.pushBack((Mesh *) mesh);
+        return mesh;
+    }
+
+    Handle Renderer::CreateUnmanagedMesh(IN CONST Vector<MeshVertex> &vertices, IN CONST Vector<INT32> &indices)
+    {
+        const auto mesh = new Mesh();
+        mesh->VertexBuffer = GPUBuffer::Create(GPUBuffer::Usage::VERTEX, vertices.data(),
+                                               static_cast<UINT32>(vertices.size() * sizeof(vertices[0])));
+        mesh->IndexBuffer = GPUBuffer::Create(GPUBuffer::Usage::INDEX, indices.data(),
+                                              static_cast<UINT32>(indices.size() * sizeof(indices[0])));
+        mesh->IndexCount = static_cast<UINT32>(indices.size());
+        return (Handle) mesh;
+    }
+
+    VOID Renderer::DestroyUnmanagedMesh(IN Handle handle)
+    {
+        delete ((Mesh *) handle);
+    }
+
+    VOID Renderer::Draw(IN Handle meshHandle, IN Handle textureHandle, IN CONST glm::vec2 &position,
+                        IN CONST glm::vec2 &scale, IN FLOAT32 rotation, IN UINT8 layerIndex, IN INT16 sortIndex,
+                        IN CONST glm::vec4 &colorOverlay)
+    {
+        IA_ASSERT(sortIndex <= 0x1FFF);
+
+#pragma pack(push, 1)
+
+        STATIC struct
+        {
+            INT32 FlippedH{false};
+            INT32 FlippedV{false};
+            glm::vec2 TextureOffset{0.0f, 0.0f};
+            glm::vec4 ColorOverlay{1.0f, 1.0f, 1.0f, 1.0f};
+        } s_fragmentUniform{};
+
+#pragma pack(pop)
+
+        if (g_renderState.CameraRelative)
+            SDL_PushGPUVertexUniformData(g_cmdBuffer, 1, &matView, sizeof(matView));
+        else
+            SDL_PushGPUVertexUniformData(g_cmdBuffer, 1, &matIdentity, sizeof(matIdentity));
+        if (Engine::GetActiveScene()->YSortingEnabled())
+            sortIndex += static_cast<INT16>(position.y);
+        matModel =
+            glm::translate(glm::mat4(1.0f), glm::vec3{position.x, position.y,
+                                                      static_cast<FLOAT32>((layerIndex << 13) | (sortIndex & 0x1FFF))});
+        matModel = glm::rotate(matModel, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
+        matModel = glm::scale(matModel, glm::vec3{scale.x, scale.y, 1.0f});
+        SDL_PushGPUVertexUniformData(g_cmdBuffer, 2, &matModel, sizeof(matModel));
+
+        s_fragmentUniform.ColorOverlay = colorOverlay;
+        s_fragmentUniform.FlippedH = g_renderState.FlippedH;
+        s_fragmentUniform.FlippedV = g_renderState.FlippedV;
+        s_fragmentUniform.TextureOffset = g_renderState.TextureOffset;
+        SDL_GPUTextureSamplerBinding textureBinding{
+            .texture = (SDL_GPUTexture *) (textureHandle ? textureHandle : g_whiteFillTexture.GetHandle()),
+            .sampler = (SDL_GPUSampler *) GPUTexture::GetDefaultSampler()};
+        SDL_BindGPUFragmentSamplers(g_renderPass, 0, &textureBinding, 1);
+        SDL_PushGPUFragmentUniformData(g_cmdBuffer, 0, &s_fragmentUniform, sizeof(s_fragmentUniform));
+
+        if (g_renderState.ScissorEnabled)
+            SDL_SetGPUScissor(g_renderPass, &g_renderState.Scissor);
+        else
+            SDL_SetGPUScissor(g_renderPass, &g_defaultScissor);
+
+        const auto mesh = (Mesh *) meshHandle;
+        SDL_GPUBufferBinding bufferBindings[] = {
+            {.buffer = (SDL_GPUBuffer *) mesh->VertexBuffer->GetHandle(), .offset = 0},
+            {.buffer = (SDL_GPUBuffer *) mesh->IndexBuffer->GetHandle(), .offset = 0}};
+        SDL_BindGPUVertexBuffers(g_renderPass, 0, bufferBindings, 1);
+        SDL_BindGPUIndexBuffer(g_renderPass, &bufferBindings[1], SDL_GPU_INDEXELEMENTSIZE_32BIT);
+        SDL_DrawGPUIndexedPrimitives(g_renderPass, mesh->IndexCount, 1, 0, 0, 0);
+    }
+} // namespace ia::iae

Src/IAEngine/imp/cpp/Scene.cpp

@@ -15,6 +15,7 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #include <IAEngine/Scene.hpp>
+#include <IAEngine/Physics/Physics.hpp>
 
 namespace ia::iae
 {
@@ -24,6 +25,14 @@ namespace ia::iae
             n.reset();
     }
 
+    VOID Scene::OnActivate()
+    {
+    }
+
+    VOID Scene::OnDeactivate()
+    {
+    }
+
     VOID Scene::Draw()
     {
         for (auto &n : m_nodes)

Src/IAEngine/imp/cpp/Texture.cpp

@@ -17,30 +17,20 @@
 #include <IAEngine/IAEngine.hpp>
 #include <IAEngine/Texture.hpp>
 
-#include <IAEngine/Rendering/Mesh/Quad.hpp>
 #include <IAEngine/Rendering/Renderer.hpp>
 
 namespace ia::iae
 {
-    Texture::Texture()
+    Texture::Texture() : m_handle(0), m_extent({100.0f, 100.0f})
     {
     }
 
     Texture::Texture(IN Handle handle, IN INT32 width, IN INT32 height)
-        : m_handle(handle), m_size({(FLOAT32) width, (FLOAT32) height, 1.0f})
+        : m_handle(handle), m_extent({(FLOAT32) width, (FLOAT32) height})
     {
     }
 
     Texture::~Texture()
     {
     }
-
-    VOID Texture::Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale, IN FLOAT32 rotation, IN BOOL flipH,
-                       IN BOOL flipV, IN CONST glm::vec4 &colorOverlay) CONST
-    {
-        Renderer::SetFlipH(flipH);
-        Renderer::SetFlipV(flipV);
-        Renderer::BindTexture(m_handle, colorOverlay);
-        QuadMesh::Draw(sortOffset, position, m_size * scale, rotation);
-    }
 } // namespace ia::iae

Src/IAEngine/imp/cpp/UI.cpp

@@ -0,0 +1,615 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <IAEngine/IAEngine.hpp>
+#include <IAEngine/Rendering/GPUTexture.hpp>
+#include <IAEngine/Rendering/Renderer.hpp>
+#include <IAEngine/UI.hpp>
+
+#include <RmlUi/Core.h>
+#include <RmlUi/Debugger.h>
+
+#include <SDL3/SDL_events.h>
+
+#include <IACore/File.hpp>
+
+#include <IACore/Map.hpp>
+#include <map>
+
+namespace ia::iae
+{
+    class RmlUIRenderInterface : public Rml::RenderInterface
+    {
+      public:
+        Rml::CompiledGeometryHandle CompileGeometry(Rml::Span<const Rml::Vertex> vertices,
+                                                    Rml::Span<const int> indices);
+        void RenderGeometry(Rml::CompiledGeometryHandle geometry, Rml::Vector2f translation,
+                            Rml::TextureHandle texture);
+        void ReleaseGeometry(Rml::CompiledGeometryHandle geometry);
+        Rml::TextureHandle LoadTexture(Rml::Vector2i &texture_dimensions, const Rml::String &source);
+        Rml::TextureHandle GenerateTexture(Rml::Span<const Rml::byte> source, Rml::Vector2i source_dimensions);
+        void ReleaseTexture(Rml::TextureHandle texture);
+        void EnableScissorRegion(bool enable);
+        void SetScissorRegion(Rml::Rectanglei region);
+    };
+
+    Vector<Texture> g_textures;
+    RmlUIRenderInterface g_rmlUIRenderInterface{};
+
+    /* Taken from https://github.com/mikke89/RmlUi/blob/master/Backends/RmlUi_Platform_SDL.cpp */
+    INT32 GetKeyModifierState()
+    {
+        SDL_Keymod sdl_mods = SDL_GetModState();
+        INT32 keymods = 0;
+        if (sdl_mods & SDL_KMOD_CTRL)
+            keymods |= Rml::Input::KM_CTRL;
+        if (sdl_mods & SDL_KMOD_SHIFT)
+            keymods |= Rml::Input::KM_SHIFT;
+        if (sdl_mods & SDL_KMOD_ALT)
+            keymods |= Rml::Input::KM_ALT;
+        if (sdl_mods & SDL_KMOD_NUM)
+            keymods |= Rml::Input::KM_NUMLOCK;
+        if (sdl_mods & SDL_KMOD_CAPS)
+            keymods |= Rml::Input::KM_CAPSLOCK;
+        return keymods;
+    }
+
+    /* Taken from https://github.com/mikke89/RmlUi/blob/master/Backends/RmlUi_Platform_SDL.cpp */
+    INT32 SDLMouseButtonToRml(IN INT32 button)
+    {
+        switch (button)
+        {
+        case SDL_BUTTON_LEFT:
+            return 0;
+        case SDL_BUTTON_RIGHT:
+            return 1;
+        case SDL_BUTTON_MIDDLE:
+            return 2;
+        default:
+            break;
+        }
+        return 3;
+    }
+
+    /* Taken from https://github.com/mikke89/RmlUi/blob/master/Backends/RmlUi_Platform_SDL.cpp */
+    Rml::Input::KeyIdentifier SDLKeyToRml(int sdlkey)
+    {
+        switch (sdlkey)
+        {
+        case SDLK_UNKNOWN:
+            return Rml::Input::KI_UNKNOWN;
+        case SDLK_ESCAPE:
+            return Rml::Input::KI_ESCAPE;
+        case SDLK_SPACE:
+            return Rml::Input::KI_SPACE;
+        case SDLK_0:
+            return Rml::Input::KI_0;
+        case SDLK_1:
+            return Rml::Input::KI_1;
+        case SDLK_2:
+            return Rml::Input::KI_2;
+        case SDLK_3:
+            return Rml::Input::KI_3;
+        case SDLK_4:
+            return Rml::Input::KI_4;
+        case SDLK_5:
+            return Rml::Input::KI_5;
+        case SDLK_6:
+            return Rml::Input::KI_6;
+        case SDLK_7:
+            return Rml::Input::KI_7;
+        case SDLK_8:
+            return Rml::Input::KI_8;
+        case SDLK_9:
+            return Rml::Input::KI_9;
+        case SDLK_A:
+            return Rml::Input::KI_A;
+        case SDLK_B:
+            return Rml::Input::KI_B;
+        case SDLK_C:
+            return Rml::Input::KI_C;
+        case SDLK_D:
+            return Rml::Input::KI_D;
+        case SDLK_E:
+            return Rml::Input::KI_E;
+        case SDLK_F:
+            return Rml::Input::KI_F;
+        case SDLK_G:
+            return Rml::Input::KI_G;
+        case SDLK_H:
+            return Rml::Input::KI_H;
+        case SDLK_I:
+            return Rml::Input::KI_I;
+        case SDLK_J:
+            return Rml::Input::KI_J;
+        case SDLK_K:
+            return Rml::Input::KI_K;
+        case SDLK_L:
+            return Rml::Input::KI_L;
+        case SDLK_M:
+            return Rml::Input::KI_M;
+        case SDLK_N:
+            return Rml::Input::KI_N;
+        case SDLK_O:
+            return Rml::Input::KI_O;
+        case SDLK_P:
+            return Rml::Input::KI_P;
+        case SDLK_Q:
+            return Rml::Input::KI_Q;
+        case SDLK_R:
+            return Rml::Input::KI_R;
+        case SDLK_S:
+            return Rml::Input::KI_S;
+        case SDLK_T:
+            return Rml::Input::KI_T;
+        case SDLK_U:
+            return Rml::Input::KI_U;
+        case SDLK_V:
+            return Rml::Input::KI_V;
+        case SDLK_W:
+            return Rml::Input::KI_W;
+        case SDLK_X:
+            return Rml::Input::KI_X;
+        case SDLK_Y:
+            return Rml::Input::KI_Y;
+        case SDLK_Z:
+            return Rml::Input::KI_Z;
+        case SDLK_SEMICOLON:
+            return Rml::Input::KI_OEM_1;
+        case SDLK_PLUS:
+            return Rml::Input::KI_OEM_PLUS;
+        case SDLK_COMMA:
+            return Rml::Input::KI_OEM_COMMA;
+        case SDLK_MINUS:
+            return Rml::Input::KI_OEM_MINUS;
+        case SDLK_PERIOD:
+            return Rml::Input::KI_OEM_PERIOD;
+        case SDLK_SLASH:
+            return Rml::Input::KI_OEM_2;
+        case SDLK_GRAVE:
+            return Rml::Input::KI_OEM_3;
+        case SDLK_LEFTBRACKET:
+            return Rml::Input::KI_OEM_4;
+        case SDLK_BACKSLASH:
+            return Rml::Input::KI_OEM_5;
+        case SDLK_RIGHTBRACKET:
+            return Rml::Input::KI_OEM_6;
+        case SDLK_DBLAPOSTROPHE:
+            return Rml::Input::KI_OEM_7;
+        case SDLK_KP_0:
+            return Rml::Input::KI_NUMPAD0;
+        case SDLK_KP_1:
+            return Rml::Input::KI_NUMPAD1;
+        case SDLK_KP_2:
+            return Rml::Input::KI_NUMPAD2;
+        case SDLK_KP_3:
+            return Rml::Input::KI_NUMPAD3;
+        case SDLK_KP_4:
+            return Rml::Input::KI_NUMPAD4;
+        case SDLK_KP_5:
+            return Rml::Input::KI_NUMPAD5;
+        case SDLK_KP_6:
+            return Rml::Input::KI_NUMPAD6;
+        case SDLK_KP_7:
+            return Rml::Input::KI_NUMPAD7;
+        case SDLK_KP_8:
+            return Rml::Input::KI_NUMPAD8;
+        case SDLK_KP_9:
+            return Rml::Input::KI_NUMPAD9;
+        case SDLK_KP_ENTER:
+            return Rml::Input::KI_NUMPADENTER;
+        case SDLK_KP_MULTIPLY:
+            return Rml::Input::KI_MULTIPLY;
+        case SDLK_KP_PLUS:
+            return Rml::Input::KI_ADD;
+        case SDLK_KP_MINUS:
+            return Rml::Input::KI_SUBTRACT;
+        case SDLK_KP_PERIOD:
+            return Rml::Input::KI_DECIMAL;
+        case SDLK_KP_DIVIDE:
+            return Rml::Input::KI_DIVIDE;
+        case SDLK_KP_EQUALS:
+            return Rml::Input::KI_OEM_NEC_EQUAL;
+        case SDLK_BACKSPACE:
+            return Rml::Input::KI_BACK;
+        case SDLK_TAB:
+            return Rml::Input::KI_TAB;
+        case SDLK_CLEAR:
+            return Rml::Input::KI_CLEAR;
+        case SDLK_RETURN:
+            return Rml::Input::KI_RETURN;
+        case SDLK_PAUSE:
+            return Rml::Input::KI_PAUSE;
+        case SDLK_CAPSLOCK:
+            return Rml::Input::KI_CAPITAL;
+        case SDLK_PAGEUP:
+            return Rml::Input::KI_PRIOR;
+        case SDLK_PAGEDOWN:
+            return Rml::Input::KI_NEXT;
+        case SDLK_END:
+            return Rml::Input::KI_END;
+        case SDLK_HOME:
+            return Rml::Input::KI_HOME;
+        case SDLK_LEFT:
+            return Rml::Input::KI_LEFT;
+        case SDLK_UP:
+            return Rml::Input::KI_UP;
+        case SDLK_RIGHT:
+            return Rml::Input::KI_RIGHT;
+        case SDLK_DOWN:
+            return Rml::Input::KI_DOWN;
+        case SDLK_INSERT:
+            return Rml::Input::KI_INSERT;
+        case SDLK_DELETE:
+            return Rml::Input::KI_DELETE;
+        case SDLK_HELP:
+            return Rml::Input::KI_HELP;
+        case SDLK_F1:
+            return Rml::Input::KI_F1;
+        case SDLK_F2:
+            return Rml::Input::KI_F2;
+        case SDLK_F3:
+            return Rml::Input::KI_F3;
+        case SDLK_F4:
+            return Rml::Input::KI_F4;
+        case SDLK_F5:
+            return Rml::Input::KI_F5;
+        case SDLK_F6:
+            return Rml::Input::KI_F6;
+        case SDLK_F7:
+            return Rml::Input::KI_F7;
+        case SDLK_F8:
+            return Rml::Input::KI_F8;
+        case SDLK_F9:
+            return Rml::Input::KI_F9;
+        case SDLK_F10:
+            return Rml::Input::KI_F10;
+        case SDLK_F11:
+            return Rml::Input::KI_F11;
+        case SDLK_F12:
+            return Rml::Input::KI_F12;
+        case SDLK_F13:
+            return Rml::Input::KI_F13;
+        case SDLK_F14:
+            return Rml::Input::KI_F14;
+        case SDLK_F15:
+            return Rml::Input::KI_F15;
+        case SDLK_NUMLOCKCLEAR:
+            return Rml::Input::KI_NUMLOCK;
+        case SDLK_SCROLLLOCK:
+            return Rml::Input::KI_SCROLL;
+        case SDLK_LSHIFT:
+            return Rml::Input::KI_LSHIFT;
+        case SDLK_RSHIFT:
+            return Rml::Input::KI_RSHIFT;
+        case SDLK_LCTRL:
+            return Rml::Input::KI_LCONTROL;
+        case SDLK_RCTRL:
+            return Rml::Input::KI_RCONTROL;
+        case SDLK_LALT:
+            return Rml::Input::KI_LMENU;
+        case SDLK_RALT:
+            return Rml::Input::KI_RMENU;
+        case SDLK_LGUI:
+            return Rml::Input::KI_LMETA;
+        case SDLK_RGUI:
+            return Rml::Input::KI_RMETA;
+        default:
+            break;
+        }
+        return Rml::Input::KI_UNKNOWN;
+    }
+} // namespace ia::iae
+
+namespace ia::iae
+{
+    class EventListener : public Rml::EventListener
+    {
+      public:
+        EventListener(IN Rml::ElementDocument *document) : m_document(document)
+        {
+        }
+
+        VOID AddClickListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("click", this);
+            m_clickCallbacks[elementId] = callback;
+        }
+
+        VOID AddHoverEnterListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("mouseover", this);
+            m_hoverEnterCallbacks[elementId] = callback;
+        }
+
+        VOID AddHoverExitListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("mouseout", this);
+            m_hoverExitCallbacks[elementId] = callback;
+        }
+
+        VOID AddPointerDownListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("mousedown", this);
+            m_pointerDownCallbacks[elementId] = callback;
+        }
+
+        VOID AddPointerUpListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("mouseup", this);
+            m_pointerUpCallbacks[elementId] = callback;
+        }
+
+        VOID ProcessEvent(IN Rml::Event &event)
+        {
+            switch (event.GetId())
+            {
+            case Rml::EventId::Click:
+                m_clickCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            case Rml::EventId::Mouseover:
+                m_hoverEnterCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            case Rml::EventId::Mouseout:
+                m_hoverExitCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            case Rml::EventId::Mousedown:
+                m_pointerDownCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            case Rml::EventId::Mouseup:
+                m_pointerUpCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            default:
+                break;
+            }
+        }
+
+      private:
+        Rml::ElementDocument *CONST m_document;
+        Map<String, std::function<VOID()>> m_clickCallbacks;
+        Map<String, std::function<VOID()>> m_hoverEnterCallbacks;
+        Map<String, std::function<VOID()>> m_hoverExitCallbacks;
+        Map<String, std::function<VOID()>> m_pointerDownCallbacks;
+        Map<String, std::function<VOID()>> m_pointerUpCallbacks;
+    };
+} // namespace ia::iae
+
+namespace ia::iae
+{
+    Rml::Context *g_context{};
+    BOOL g_debuggerEnabled{false};
+
+    std::map<Handle, EventListener *> g_eventListeners;
+
+    struct MainDataModel
+    {
+        Rml::String InputValues[10];
+    } g_mainDataModel;
+
+    VOID UI::Initialize(IN INT32 width, IN INT32 height)
+    {
+        Rml::SetRenderInterface(&g_rmlUIRenderInterface);
+        Rml::Initialise();
+        g_context = Rml::CreateContext("main", Rml::Vector2i(width, height));
+        Rml::Debugger::Initialise(g_context);
+        DisableDebugger();
+
+        if (auto dataModel = g_context->CreateDataModel("main"))
+        {
+            for (INT32 i = 0; i < ((sizeof(MainDataModel::InputValues) / sizeof(MainDataModel::InputValues[0]))); i++)
+                dataModel.Bind(BuildString("InputValue", i).c_str(), &g_mainDataModel.InputValues[i]);
+        }
+    }
+
+    VOID UI::Terminate()
+    {
+        Rml::Shutdown();
+    }
+
+    VOID UI::Update()
+    {
+        g_context->Update();
+    }
+
+    VOID UI::Draw()
+    {
+        g_context->Render();
+    }
+
+    VOID UI::OnEvent(IN PVOID _event)
+    {
+        const auto keymods = GetKeyModifierState();
+        const auto event = (SDL_Event *) _event;
+        switch (event->type)
+        {
+        case SDL_EventType::SDL_EVENT_MOUSE_MOTION:
+            g_context->ProcessMouseMove(event->motion.x, event->motion.y, keymods);
+            break;
+        case SDL_EventType::SDL_EVENT_MOUSE_BUTTON_UP:
+            g_context->ProcessMouseButtonUp(SDLMouseButtonToRml(event->button.button), keymods);
+            break;
+        case SDL_EventType::SDL_EVENT_MOUSE_BUTTON_DOWN:
+            g_context->ProcessMouseButtonDown(SDLMouseButtonToRml(event->button.button), keymods);
+            break;
+        case SDL_EventType::SDL_EVENT_KEY_DOWN:
+            if (event->key.key == SDLK_F8)
+            {
+                if (g_debuggerEnabled)
+                    DisableDebugger();
+                else
+                    EnableDebugger();
+            }
+            g_context->ProcessKeyDown(SDLKeyToRml(event->key.key), keymods);
+            break;
+        case SDL_EventType::SDL_EVENT_KEY_UP:
+            g_context->ProcessKeyUp(SDLKeyToRml(event->key.key), keymods);
+            break;
+        case SDL_EventType::SDL_EVENT_TEXT_INPUT:
+            g_context->ProcessTextInput(Rml::String(&event->text.text[0]));
+            break;
+        }
+    }
+
+    VOID UI::OnResize(IN INT32 width, IN INT32 height)
+    {
+    }
+} // namespace ia::iae
+
+namespace ia::iae
+{
+    VOID UI::AddFontFromFile(IN CONST String &path)
+    {
+        Rml::LoadFontFace(path.c_str());
+    }
+
+    VOID UI::EnableDebugger()
+    {
+        Rml::Debugger::SetVisible(g_debuggerEnabled = true);
+    }
+
+    VOID UI::DisableDebugger()
+    {
+        Rml::Debugger::SetVisible(g_debuggerEnabled = false);
+    }
+
+    Handle UI::AddWindowFromFile(IN CONST String &path)
+    {
+        const auto w = g_context->LoadDocument(path.c_str());
+        const auto handle = (Handle) w;
+        g_eventListeners[handle] = new EventListener(w);
+        return handle;
+    }
+
+    VOID UI::ShowWindow(IN Handle handle)
+    {
+        reinterpret_cast<Rml::ElementDocument *>(handle)->Show();
+    }
+
+    VOID UI::HideWindow(IN Handle handle)
+    {
+        reinterpret_cast<Rml::ElementDocument *>(handle)->Hide();
+    }
+
+    VOID UI::AddClickEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
+    {
+        g_eventListeners[handle]->AddClickListener(elementId, callback);
+    }
+
+    VOID UI::AddHoverEnterEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
+    {
+        g_eventListeners[handle]->AddHoverEnterListener(elementId, callback);
+    }
+
+    VOID UI::AddHoverExitEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
+    {
+        g_eventListeners[handle]->AddHoverExitListener(elementId, callback);
+    }
+
+    VOID UI::AddPointerDownEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
+    {
+        g_eventListeners[handle]->AddPointerDownListener(elementId, callback);
+    }
+
+    VOID UI::AddPointerUpEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
+    {
+        g_eventListeners[handle]->AddPointerUpListener(elementId, callback);
+    }
+
+    String UI::GetInputValue(IN INT32 index)
+    {
+        return g_mainDataModel.InputValues[index].c_str();
+    }
+
+    VOID UI::SetInputValue(IN INT32 index, IN CONST String &value)
+    {
+        g_mainDataModel.InputValues[index] = Rml::String(value.c_str());
+    }
+
+    VOID UI::DestroyWindow(IN Handle handle)
+    {
+        const auto w = reinterpret_cast<Rml::ElementDocument *>(handle);
+        w->Hide();
+        w->Close();
+    }
+} // namespace ia::iae
+
+namespace ia::iae
+{
+    Rml::CompiledGeometryHandle RmlUIRenderInterface::CompileGeometry(Rml::Span<const Rml::Vertex> vertices,
+                                                                      Rml::Span<const int> indices)
+    {
+        Vector<MeshVertex> _vertices;
+        Vector<INT32> _indices;
+        for (const auto &v : vertices)
+            _vertices.pushBack({glm::vec3{v.position.x, v.position.y, 0.0f}, glm::vec2{v.tex_coord.x, v.tex_coord.y},
+                                glm::vec4{v.colour.red / 255.0f, v.colour.green / 255.0f, v.colour.blue / 255.0f,
+                                          v.colour.alpha / 255.0f}});
+        for (const auto &v : indices)
+            _indices.pushBack(v);
+        return Renderer::CreateMesh(_vertices, _indices);
+    }
+
+    void RmlUIRenderInterface::RenderGeometry(Rml::CompiledGeometryHandle geometry, Rml::Vector2f translation,
+                                              Rml::TextureHandle texture)
+    {
+        Renderer::SetState_FlippedH(false);
+        Renderer::SetState_FlippedV(false);
+        Renderer::SetState_CameraRelative(false);
+        Renderer::SetState_TextureOffset(0, 0);
+        if (texture)
+            Renderer::Draw(geometry, g_textures[texture - 1].GetHandle(), {translation.x, translation.y}, {1.0f, 1.0f},
+                           0.0f, Renderer::MAX_LAYER_INDEX);
+        else
+            Renderer::Draw(geometry, 0, {translation.x, translation.y}, {1.0f, 1.0f}, 0.0f, Renderer::MAX_LAYER_INDEX);
+    }
+
+    void RmlUIRenderInterface::ReleaseGeometry(Rml::CompiledGeometryHandle geometry)
+    {
+    }
+
+    Rml::TextureHandle RmlUIRenderInterface::LoadTexture(Rml::Vector2i &texture_dimensions, const Rml::String &source)
+    {
+        g_textures.pushBack(Engine::CreateTexture(File::ReadToVector(source.c_str())));
+        return g_textures.size();
+    }
+
+    Rml::TextureHandle RmlUIRenderInterface::GenerateTexture(Rml::Span<const Rml::byte> source,
+                                                             Rml::Vector2i source_dimensions)
+    {
+        g_textures.pushBack(
+            Engine::CreateTexture((PCUINT8) source.data(), (INT32) source_dimensions.x, (INT32) source_dimensions.y));
+        return g_textures.size();
+    }
+
+    void RmlUIRenderInterface::ReleaseTexture(Rml::TextureHandle texture)
+    {
+    }
+
+    void RmlUIRenderInterface::EnableScissorRegion(bool enable)
+    {
+        Renderer::SetState_ScissorEnabled(enable);
+    }
+
+    void RmlUIRenderInterface::SetScissorRegion(Rml::Rectanglei region)
+    {
+        Renderer::SetState_Scissor({region.Left(), region.Top(), region.Right(), region.Bottom()});
+    }
+} // namespace ia::iae

Src/IAEngine/imp/glsl/PostProcessing/PostProcess.frag

@@ -0,0 +1,23 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec2 inTexCoord;
+
+layout(set = 2, binding = 0) uniform sampler2D sceneDrawTexture;
+layout(set = 2, binding = 1) uniform sampler2D debugDrawTexture;
+
+layout(location = 0) out vec4 outColor;
+
+vec4 overlay(vec4 background, vec4 foreground) {
+    return mix(
+        2.0 * background * foreground,
+        1.0 - 2.0 * (1.0 - background) * (1.0 - foreground),
+        step(0.5, background)
+    );
+}
+
+void main()
+{
+    vec2 uv = vec2(inTexCoord.x, 1.0 - inTexCoord.y);
+    outColor = overlay(texture(debugDrawTexture, uv), texture(sceneDrawTexture, uv));
+}

Src/IAEngine/imp/glsl/PostProcessing/PostProcess.vert

@@ -0,0 +1,10 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) out vec2 outTexCoord;
+
+void main()
+{
+    outTexCoord = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
+	gl_Position = vec4(outTexCoord * 2.0f - 1.0f, 0.0f, 1.0f);
+}

Src/IAEngine/imp/glsl/UnlitMesh/UnlitMesh.frag

@@ -2,22 +2,25 @@
 #extension GL_ARB_separate_shader_objects : enable
 
 layout(location = 0) in vec2 inTexCoord;
+layout(location = 1) in vec4 inVertexColor;
 
 layout(location = 0) out vec4 outColor;
 
 layout(set = 2, binding = 0) uniform sampler2D texSampler;
 layout(set = 3, binding = 0) uniform UniformBufferObject {
+    bool flippedH;
+    bool flippedV;
+    vec2 uvOffset;
     vec4 colorOverlay;
 } ubo;
-layout(set = 3, binding = 1) uniform UniformBufferObject2 {
-    float parallaxFactor;
-} ubo2;
 
 void main()
 {
     vec2 uv = inTexCoord;
-    uv.x += ubo2.parallaxFactor;
-    outColor = texture(texSampler, uv) * ubo.colorOverlay;
+    uv += ubo.uvOffset;
+    if(ubo.flippedH) uv.x = 1.0 - uv.x;
+    if(ubo.flippedV) uv.y = 1.0 - uv.y;
+    outColor = texture(texSampler, uv) * inVertexColor * ubo.colorOverlay;
     if(outColor.w < 0.1)
         discard;
 }

Src/IAEngine/imp/glsl/UnlitMesh/UnlitMesh.vert

@@ -3,8 +3,10 @@
 
 layout (location = 0) in vec3 inPosition;
 layout (location = 1) in vec2 inTexCoord;
+layout (location = 2) in vec4 inVertexColor;
 
 layout(location = 0) out vec2 outTexCoord;
+layout(location = 1) out vec4 outVertexColor;
 
 layout(set = 1, binding = 0) uniform UBO_Vertex_PerScene {
     mat4 projection;
@@ -20,4 +22,5 @@ void main()
 {
 	gl_Position = uboPerScene.projection * uboPerFrame.view * uboPerDraw.model * vec4(inPosition, 1.0f);
     outTexCoord = inTexCoord;
+    outVertexColor = inVertexColor;
 }

Src/IAEngine/inc/IAEngine/Audio.hpp

@@ -63,12 +63,14 @@ namespace ia::iae
       public:
         STATIC VOID Initialize();
         STATIC VOID Terminate();
-
-        STATIC Sound CreateSound(IN PCUINT8 audioData, IN SIZE_T audioDataSize);
+        
+        STATIC VOID Update();
 
         STATIC INT64 CreateTrack();
         STATIC VOID DestroyTrack(IN INT64 trackHandle);
 
+        STATIC Sound CreateSound(IN PCUINT8 audioData, IN SIZE_T audioDataSize);
+
         STATIC VOID QueueTrackData(IN INT64 trackHandle, IN INT64 dataHandle);
         STATIC VOID PlayTrack(IN INT64 trackHandle, IN INT32 loopTimes, IN TimePeriod loopDelay);
         STATIC VOID ClearTrack(IN INT64 trackHandle);

Src/IAEngine/inc/IAEngine/Components/AtlasRenderer.hpp

@@ -16,13 +16,13 @@
 
 #pragma once
 
-#include <IAEngine/Components/Component.hpp>
+#include <IAEngine/Components/TextureRenderer.hpp>
 #include <IAEngine/Rendering/GPUTexture.hpp>
 #include <IAEngine/Texture.hpp>
 
 namespace ia::iae
 {
-    class AtlasRendererComponent : public IComponent
+    class AtlasRendererComponent : public TextureRendererComponent
     {
       public:
         struct TileGrid
@@ -35,7 +35,7 @@ namespace ia::iae
             INT32 TileCountY{};
 
         private:
-            Vector<Texture> m_tileTextures{};
+            Vector<class Texture> m_tileTextures{};
             
             friend class AtlasRendererComponent;
         };
@@ -46,8 +46,8 @@ namespace ia::iae
 
       public:
         VOID SetGrid(IN INT32 tileWidth, IN INT32 tileHeight, IN INT32 tileCountX, IN INT32 tileCountY);
-        VOID SetGridTileTexture(IN INT32 index, IN Texture texture);
-        VOID SetGridTileTexture(IN INT32 x, IN INT32 y, IN Texture texture);
+        VOID SetGridTileTexture(IN INT32 index, IN class Texture texture);
+        VOID SetGridTileTexture(IN INT32 x, IN INT32 y, IN class Texture texture);
         VOID BakeGrid();
 
       public:
@@ -56,7 +56,6 @@ namespace ia::iae
 
       private:
         TileGrid m_tileGrid{};
-        Texture m_bakedTexture{};
         RefPtr<GPUTexture> m_bakedGPUTexture{};
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Components/BoxCollider2D.hpp

@@ -1,49 +0,0 @@
-// IAEngine: 2D Game Engine by IA
-// Copyright (C) 2025 IAS (ias@iasoft.dev)
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#pragma once
-
-#include <IAEngine/Components/Component.hpp>
-
-namespace ia::iae
-{
-    class BoxCollider2DComponent : public IComponent
-    {
-      public:
-        BoxCollider2DComponent(IN Node *node);
-
-        BOOL& IsDynamic(){return m_isDynamic;}
-
-        glm::vec4& Shape()
-        {
-            return m_shape;
-        }
-
-        CONST glm::vec4& AbsoluteShape() CONST
-        {
-            return m_absoluteShape;
-        }
-
-      public:
-        VOID Draw();
-        VOID Update();
-
-      private:
-        BOOL m_isDynamic{};
-        glm::vec4 m_shape{};
-        glm::vec4 m_absoluteShape{};
-    };
-} // namespace ia::iae

Src/IAEngine/inc/IAEngine/Components/Physics.hpp

@@ -0,0 +1,81 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <IAEngine/Components/Component.hpp>
+
+namespace ia::iae
+{
+    class PhysicsComponent : public IComponent
+    {
+      public:
+        struct Collider
+        {
+            BOOL IsTrigger{false};
+            glm::vec2 Position{};
+            glm::vec2 Size{};
+        };
+
+      public:
+        PhysicsComponent(IN Node *node);
+        ~PhysicsComponent();
+
+        Handle CreateCollider();
+        Handle AddCollider(IN Collider collider);
+        Collider &GetCollider(IN Handle handle);
+
+        VOID Move(IN glm::vec2 direction);
+
+        VOID Jump(IN FLOAT32 force);
+
+      public:
+        BOOL &IsDynamic()
+        {
+            return m_isDynamic;
+        }
+
+        FLOAT32 &MovementSpeed()
+        {
+            return m_movementSpeed;
+        }
+
+        Vector<Collider> &Colliders()
+        {
+            return m_colliders;
+        }
+
+        CONST glm::vec2& GetVelocity() CONST
+        {
+            return m_velocity;
+        }
+
+      public:
+        VOID Draw();
+        VOID Update();
+
+      private:
+        glm::vec2 m_velocity{};
+        BOOL m_isDynamic{false};
+        Vector<Collider> m_colliders;
+        FLOAT32 m_movementSpeed{1.0f};
+        Handle m_physicsHandle{INVALID_HANDLE};
+
+        VOID OnCollision(IN PhysicsComponent *other);
+
+        friend class Physics;
+    };
+} // namespace ia::iae

Src/IAEngine/inc/IAEngine/Components/PhysicsBody.hpp

@@ -1,24 +0,0 @@
-// IAEngine: 2D Game Engine by IA
-// Copyright (C) 2025 IAS (ias@iasoft.dev)
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#pragma once
-
-#include <IAEngine/Components/Component.hpp>
-
-namespace ia::iae
-{
-    
-}

Src/IAEngine/inc/IAEngine/Components/SpriteRenderer.hpp

@@ -16,23 +16,24 @@
 
 #pragma once
 
-#include <IAEngine/Components/Component.hpp>
+#include <IAEngine/Components/TextureRenderer.hpp>
 #include <IAEngine/Texture.hpp>
 
 namespace ia::iae
 {
-    class SpriteRendererComponent : public IComponent
+    class SpriteRendererComponent : public TextureRendererComponent
     {
       public:
         struct AnimationKeyFrame
         {
-            INT32 Duration{100};
-            glm::vec3 Position{};
-            glm::vec3 Rotation{};
-            glm::vec3 Scale{1.0f, 1.0f, 1.0f};
-            glm::vec4 ColorOverlay{1.0f, 1.0f, 1.0f, 1.0f};
-            BOOL ShouldInterpolate{};
             Texture Texture;
+            INT32 Duration{100};
+            BOOL ShouldInterpolate{};
+
+            FLOAT32 Rotation{};
+            glm::vec2 Position{};
+            glm::vec2 Scale{1.0f, 1.0f};
+            glm::vec4 ColorOverlay{1.0f, 1.0f, 1.0f, 1.0f};
         };
 
         struct Animation
@@ -49,6 +50,9 @@ namespace ia::iae
         VOID BakeAnimations();
 
         VOID SetActiveAnimation(IN Handle animation);
+        VOID ForceSetActiveAnimation(IN Handle animation);
+
+        VOID SetAnimationFrame(IN INT32 animation, IN INT32 frame);
 
       public:
         Vector<Animation> &Animations()
@@ -61,26 +65,6 @@ namespace ia::iae
             return m_animations;
         }
 
-        BOOL &IsFlippedV()
-        {
-            return m_isFlippedV;
-        }
-
-        BOOL &IsFlippedH()
-        {
-            return m_isFlippedH;
-        }
-
-        FLOAT32 &SortOffset()
-        {
-            return m_sortOffset;
-        }
-
-        FLOAT32 &ParallaxFactor()
-        {
-            return m_parallaxFactor;
-        }
-
         BOOL &ReverseAnimation()
         {
             return m_reverseAnimation;
@@ -97,10 +81,6 @@ namespace ia::iae
 
       private:
         BOOL m_reverseAnimation{};
-        FLOAT32 m_parallaxFactor{0.0f};
-        FLOAT32 m_sortOffset{};
-        BOOL m_isFlippedV{false};
-        BOOL m_isFlippedH{false};
         FLOAT32 m_timelinePosition{};
         Animation m_activeAnimation{};
         Handle m_activeAnimationHandle{INVALID_HANDLE};

Src/IAEngine/inc/IAEngine/Components/TextureRenderer.hpp

@@ -26,14 +26,59 @@ namespace ia::iae
       public:
         TextureRendererComponent(IN Node *node);
 
-        Texture &Texture()
+        Texture &CurrentTexture()
         {
             return m_texture;
         }
 
-        glm::vec3 &Position()
+        glm::vec2 &PositionOffset()
         {
-            return m_position;
+            return m_positionOffset;
+        }
+
+        glm::vec2 &ScaleOffset()
+        {
+            return m_scaleOffset;
+        }
+
+        FLOAT32 &RotationOffset()
+        {
+            return m_rotationOffset;
+        }
+
+        glm::vec2 &TextureOffset()
+        {
+            return m_textureOffset;
+        }
+
+        glm::vec4 &ColorOverlay()
+        {
+            return m_colorOverlay;
+        }
+
+        BOOL &IsFlippedH()
+        {
+            return m_isFlippedH;
+        }
+
+        BOOL &IsFlippedV()
+        {
+            return m_isFlippedV;
+        }
+
+        BOOL &IsCameraRelative()
+        {
+            return m_isCameraRelative;
+        }
+
+        BOOL& ShouldDrawOutline()
+        {
+            return m_shouldDrawOutline;
+        }
+
+        glm::vec4& OutlineColor()
+        {
+            return m_outlineColor;
         }
 
       public:
@@ -41,7 +86,16 @@ namespace ia::iae
         VOID Update();
 
       private:
+        BOOL m_isFlippedH{};
+        BOOL m_isFlippedV{};
+        BOOL m_shouldDrawOutline{};
+        glm::vec4 m_outlineColor{0.25f, 0.25f, 0.25f, 0.75f};
+        BOOL m_isCameraRelative{true};
+        glm::vec2 m_positionOffset{};
+        glm::vec2 m_scaleOffset{1.0f, 1.0f};
+        FLOAT32 m_rotationOffset{};
+        glm::vec2 m_textureOffset{};
+        glm::vec4 m_colorOverlay{1.0f, 1.0f, 1.0f, 1.0f};
         class Texture m_texture;
-        glm::vec3 m_position;
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Input.hpp

@@ -255,8 +255,8 @@ namespace ia::iae
 
         enum class DirectionalInput: UINT8
         {
-            NONE = 0,
-            DOWN,
+            NONE = 255,
+            DOWN = 0,
             DOWN_LEFT,
             LEFT,
             UP_LEFT,
@@ -270,6 +270,9 @@ namespace ia::iae
         STATIC VOID Initialize();
         STATIC VOID OnEvent(IN PVOID event);
 
+        STATIC VOID StartTextInput();
+        STATIC VOID StopTextInput();
+
         STATIC BOOL IsKeyDown(IN Key key)
         {
             return s_keys[(UINT8)key];

Src/IAEngine/inc/IAEngine/Nodes/Node.hpp

@@ -18,6 +18,7 @@
 
 #include <IAEngine/Components/Component.hpp>
 #include <IAEngine/Nodes/Transform.hpp>
+#include <IAEngine/Nodes/Tag.hpp>
 #include <IAEngine/Texture.hpp>
 
 namespace ia::iae
@@ -38,7 +39,7 @@ namespace ia::iae
         VIRTUAL VOID Disable();
 
       public:
-        VOID AddChild(IN RefPtr<Node> node);
+        Node* AddChild(IN RefPtr<Node> node);
 
         template<typename _component_type> _component_type *AddComponent();
 
@@ -49,16 +50,43 @@ namespace ia::iae
             return m_components;
         }
 
-      public:
-        FLOAT32 &SortOffset()
+        UINT8 GetLayerIndex() CONST
         {
-            return m_sortOffset;
+            return m_layerIndex;
+        }
+
+        UINT8 &LayerIndex()
+        {
+            return m_layerIndex;
+        }
+
+        glm::vec2 &DrawnSize()
+        {
+            return m_drawnSize;
+        }
+
+        String &Name()
+        {
+            return m_name;
+        }
+
+        NodeTags& Tags()
+        {
+            return m_tags;
+        }
+
+        BOOL HasTag(IN NodeTags tag) CONST
+        {
+            return m_tags & tag;
         }
 
       protected:
         Scene *m_scene{};
-        FLOAT32 m_sortOffset{};
+        UINT8 m_layerIndex{};
         BOOL m_isEnabled{true};
+        glm::vec2 m_drawnSize{};
+        String m_name;
+        NodeTags m_tags;
 
       protected:
         Vector<RefPtr<IComponent>> m_components;

Src/IAEngine/inc/IAEngine/Nodes/Tag.hpp

@@ -0,0 +1,69 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <IAEngine/Base.hpp>
+
+namespace ia::iae
+{
+    using NodeTags = UINT64;
+
+    CONSTEXPR NodeTags NODE_TAG_PLAYER = (((NodeTags) 1) << 0);
+    CONSTEXPR NodeTags NODE_TAG_ENEMY = (((NodeTags) 1) << 1);
+    CONSTEXPR NodeTags NODE_TAG_GROUND = (((NodeTags) 1) << 2);
+    CONSTEXPR NodeTags NODE_TAG_OBSTACLE = (((NodeTags) 1) << 3);
+    CONSTEXPR NodeTags NODE_TAG_PICKUP = (((NodeTags) 1) << 4);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_1 = (((NodeTags) 1) << 5);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_2 = (((NodeTags) 1) << 6);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_3 = (((NodeTags) 1) << 7);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_4 = (((NodeTags) 1) << 8);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_5 = (((NodeTags) 1) << 9);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_6 = (((NodeTags) 1) << 10);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_7 = (((NodeTags) 1) << 11);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_8 = (((NodeTags) 1) << 12);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_9 = (((NodeTags) 1) << 13);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_10 = (((NodeTags) 1) << 14);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_11 = (((NodeTags) 1) << 15);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_12 = (((NodeTags) 1) << 16);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_13 = (((NodeTags) 1) << 17);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_14 = (((NodeTags) 1) << 18);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_15 = (((NodeTags) 1) << 19);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_16 = (((NodeTags) 1) << 20);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_17 = (((NodeTags) 1) << 21);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_18 = (((NodeTags) 1) << 22);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_19 = (((NodeTags) 1) << 23);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_20 = (((NodeTags) 1) << 24);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_21 = (((NodeTags) 1) << 25);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_22 = (((NodeTags) 1) << 26);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_23 = (((NodeTags) 1) << 27);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_24 = (((NodeTags) 1) << 28);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_25 = (((NodeTags) 1) << 29);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_26 = (((NodeTags) 1) << 30);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_27 = (((NodeTags) 1) << 31);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_28 = (((NodeTags) 1) << 32);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_29 = (((NodeTags) 1) << 33);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_30 = (((NodeTags) 1) << 34);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_31 = (((NodeTags) 1) << 35);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_32 = (((NodeTags) 1) << 36);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_33 = (((NodeTags) 1) << 37);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_34 = (((NodeTags) 1) << 38);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_35 = (((NodeTags) 1) << 39);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_36 = (((NodeTags) 1) << 40);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_37 = (((NodeTags) 1) << 41);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_38 = (((NodeTags) 1) << 42);
+    CONSTEXPR NodeTags NODE_TAG_CUSTOM_39 = (((NodeTags) 1) << 43);
+} // namespace ia::iae

Src/IAEngine/inc/IAEngine/Nodes/Transform.hpp

@@ -20,55 +20,94 @@
 
 namespace ia::iae
 {
-    template<typename _node_type>
-    class Transform
+    template<typename _node_type> class Transform
     {
       public:
-        VOID SetLocalPosition(IN CONST glm::vec3 &v)
+        VOID Translate(IN glm::vec2 v)
+        {
+            m_local.Position += v;
+            RecalculatePosition();
+        }
+
+        VOID Scale(IN FLOAT32 v)
+        {
+            m_local.Scale *= v;
+            RecalculateScale();
+        }
+
+        VOID Scale(IN glm::vec2 v)
+        {
+            m_local.Scale *= v;
+            RecalculateScale();
+        }
+
+        VOID Rotate(IN FLOAT32 v)
+        {
+            m_local.Rotation += v;
+            RecalculateRotation();
+        }
+
+        VOID SetLocalSortIndex(IN INT16 index)
+        {
+            m_local.SortIndex = index;
+            RecalculateSortIndex();
+        }
+
+        VOID SetLocalPosition(IN CONST glm::vec2 &v)
         {
             m_local.Position = v;
             RecalculatePosition();
         }
 
-        VOID SetLocalScale(IN CONST glm::vec3 &v)
+        VOID SetLocalScale(IN CONST glm::vec2 &v)
         {
             m_local.Scale = v;
             RecalculateScale();
         }
 
-        VOID SetLocalRotation(IN CONST glm::vec3 &v)
+        VOID SetLocalRotation(IN FLOAT32 v)
         {
             m_local.Rotation = v;
             RecalculateRotation();
         }
 
       public:
-        CONST glm::vec3 &GetPosition() CONST
+        INT16 GetSortIndex() CONST
+        {
+            return m_global.SortIndex;
+        }
+
+        CONST glm::vec2 &GetPosition() CONST
         {
             return m_global.Position;
         }
 
-        CONST glm::vec3 &GetScale() CONST
+        CONST glm::vec2 &GetScale() CONST
         {
             return m_global.Scale;
         }
 
-        CONST glm::vec3 &GetRotation() CONST
+        CONST FLOAT32 &GetRotation() CONST
         {
             return m_global.Rotation;
         }
 
-        CONST glm::vec3 &GetLocalPosition() CONST
+        INT16 GetLocalSortIndex() CONST
+        {
+            return m_local.SortIndex;
+        }
+
+        CONST glm::vec2 &GetLocalPosition() CONST
         {
             return m_local.Position;
         }
 
-        CONST glm::vec3 &GetLocalScale() CONST
+        CONST glm::vec2 &GetLocalScale() CONST
         {
             return m_local.Scale;
         }
 
-        CONST glm::vec3 &GetLocalRotation() CONST
+        CONST FLOAT32 &GetLocalRotation() CONST
         {
             return m_local.Rotation;
         }
@@ -78,23 +117,30 @@ namespace ia::iae
         Vector<RefPtr<_node_type>> m_children{};
 
       protected:
+        VOID RecalculateSortIndex()
+        {
+            m_global.SortIndex = (m_parent ? m_parent->GetSortIndex() : 0) + m_local.SortIndex;
+            for (auto &c : m_children)
+                c->RecalculateSortIndex();
+        }
+
         VOID RecalculatePosition()
         {
-            m_global.Position = (m_parent ? m_parent->GetPosition() : glm::vec3{}) + m_local.Position;
+            m_global.Position = (m_parent ? m_parent->GetPosition() : glm::vec2{}) + m_local.Position;
             for (auto &c : m_children)
                 c->RecalculatePosition();
         }
 
         VOID RecalculateRotation()
         {
-            m_global.Rotation = (m_parent ? m_parent->GetRotation() : glm::vec3{}) + m_local.Rotation;
+            m_global.Rotation = (m_parent ? m_parent->GetRotation() : 0) + m_local.Rotation;
             for (auto &c : m_children)
                 c->RecalculateRotation();
         }
 
         VOID RecalculateScale()
         {
-            m_global.Scale = (m_parent ? m_parent->GetScale() : glm::vec3{}) + m_local.Scale;
+            m_global.Scale = (m_parent ? m_parent->GetScale() : glm::vec2{}) + m_local.Scale;
             for (auto &c : m_children)
                 c->RecalculateScale();
         }
@@ -102,9 +148,10 @@ namespace ia::iae
       private:
         struct
         {
-            glm::vec3 Position{0.0f, 0.0f, 0.0f};
-            glm::vec3 Rotation{0.0f, 0.0f, 0.0f};
-            glm::vec3 Scale{1.0f, 1.0f, 1.0f};
+            INT16 SortIndex{};
+            FLOAT32 Rotation{0.0f};
+            glm::vec2 Position{0.0f, 0.0f};
+            glm::vec2 Scale{1.0f, 1.0f};
         } m_local{}, m_global{};
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Physics/Physics.hpp

@@ -16,18 +16,26 @@
 
 #pragma once
 
-#include <IAEngine/Components/BoxCollider2D.hpp>
+#include <IAEngine/Physics/Physics.hpp>
+#include <IAEngine/Components/Physics.hpp>
 
 namespace ia::iae
 {
     class Physics
     {
     public:
+        STATIC Handle RegisterComponent(IN PhysicsComponent* component);
+
+        STATIC BOOL CanMove(IN Handle handle, IN CONST PhysicsComponent::Collider& collider, IN glm::vec2 movement);
+
+    private:
         STATIC VOID Initialize();
         STATIC VOID Terminate();
 
         STATIC VOID Update();
+        STATIC VOID DebugDraw();
 
-        STATIC VOID AddCollider(IN BoxCollider2DComponent* collider);
+        friend class Engine;
+        friend class DebugDraw;
     };
 }

Src/IAEngine/inc/IAEngine/Rendering/DebugDraw.hpp

@@ -0,0 +1,46 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <IAEngine/Rendering/Types.hpp>
+
+namespace ia::iae
+{
+    class DebugDraw
+    {
+      public:
+        STATIC Handle AddUIWindow(IN PCCHAR title, IN CONST glm::vec2 &position, IN CONST glm::vec2 &size,
+                                  IN std::function<VOID()> contentDrawCallback);
+
+        STATIC VOID ToggleUIWindowVisibility(IN Handle handle);
+        STATIC VOID SetUIWindowVisibility(IN Handle handle, IN BOOL visible);
+
+      public:
+        STATIC VOID DrawLine(IN CONST glm::vec2 &from, IN CONST glm::vec2 &to, IN CONST glm::vec4 &color,
+                             IN FLOAT32 thickness = 1.0f);
+        STATIC VOID DrawRect(IN CONST glm::vec2 &position, IN CONST glm::vec2 &size, IN CONST glm::vec4 &color, IN FLOAT32 thickness = 1.0f);
+        STATIC VOID DrawRectFilled(IN CONST glm::vec2 &position, IN CONST glm::vec2 &size, IN CONST glm::vec4 &color);
+
+      private:
+        STATIC VOID Initailize();
+        STATIC VOID Terminate();
+
+        STATIC VOID Draw();
+
+        friend class Renderer;
+    };
+} // namespace ia::iae

Src/IAEngine/inc/IAEngine/Rendering/Pipeline/PostProcess.hpp

@@ -16,16 +16,20 @@
 
 #pragma once
 
-#include <IAEngine/Base.hpp>
+#include <IAEngine/Rendering/Pipeline/Pipeline.hpp>
 
 namespace ia::iae
 {
-    class QuadMesh
+    class Pipeline_PostProcess: public IPipeline
     {
-      public:
-        STATIC VOID Initialize();
-        STATIC VOID Terminate();
+    public:
+        ~Pipeline_PostProcess();
 
-        STATIC VOID Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale, IN FLOAT32 rotation);
+        STATIC RefPtr<Pipeline_PostProcess> Create();
+
+        VOID Bind(IN Handle renderPassHandle);
+
+    private:
+        Handle m_handle{INVALID_HANDLE};
     };
-} // namespace ia::iae
+}

Src/IAEngine/inc/IAEngine/Rendering/Renderer.hpp

@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <IAEngine/Base.hpp>
+#include <IAEngine/Rendering/Types.hpp>
 
 namespace ia::iae
 {
@@ -24,36 +24,37 @@ namespace ia::iae
 
     class Renderer
     {
-        struct DebugUIWindow
-        {
-            PCCHAR Title{""};
-            glm::vec2 Position{};
-            glm::vec2 Size{};
-            std::function<VOID()> ContentDrawCallback{};
-        };
+      public:
+        STATIC CONSTEXPR UINT8 MAX_LAYER_INDEX = 255;
 
       public:
         STATIC BOOL Initialize();
         STATIC VOID Terminate();
 
-      public:
-        STATIC VOID AddDebugUIWindow(IN PCCHAR title, IN CONST glm::vec2 &position, IN CONST glm::vec2 &size,
-                                     IN std::function<VOID()> contentDrawCallback);
-
       public:
         STATIC VOID BeginFrame();
         STATIC VOID EndFrame();
 
-        STATIC VOID BindTexture(IN Handle handle, IN CONST glm::vec4& colorOverlay);
+        STATIC VOID SetState_FlippedH(IN BOOL value);
+        STATIC VOID SetState_FlippedV(IN BOOL value);
+        STATIC VOID SetState_CameraRelative(IN BOOL value);
+        STATIC VOID SetState_ScissorEnabled(IN BOOL value);
+        STATIC VOID SetState_Scissor(IN CONST glm::vec4 &region);
+        STATIC VOID SetState_TextureOffset(IN FLOAT32 u, IN FLOAT32 v);
 
-        STATIC VOID Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale, IN FLOAT32 rotation, IN Handle vertexBufferHandle, IN INT32 vertexCount);
-        STATIC VOID Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale, IN FLOAT32 rotation, IN Handle vertexBufferHandle, IN Handle indexBufferHandle, IN INT32 indexCount);
+      public:
+        STATIC Handle GetMesh_Quad();
 
-        STATIC Camera2D* GetCamera();
+        STATIC Handle CreateMesh(IN CONST Vector<MeshVertex> &vertices, IN CONST Vector<INT32> &indices);
+        STATIC Handle CreateUnmanagedMesh(IN CONST Vector<MeshVertex> &vertices, IN CONST Vector<INT32> &indices);
+        STATIC VOID DestroyUnmanagedMesh(IN Handle handle);
 
-        STATIC VOID SetFlipH(IN BOOL value);
-        STATIC VOID SetFlipV(IN BOOL value);
-        STATIC VOID SetParallaxFactor(IN FLOAT32 value);
+        STATIC VOID Draw(IN Handle meshHandle, IN Handle textureHandle, IN CONST glm::vec2 &position,
+                         IN CONST glm::vec2 &scale, IN FLOAT32 rotation = 0, IN UINT8 layerIndex = 0,
+                         IN INT16 sortIndex = 0, IN CONST glm::vec4 &colorOverlay = {1.0f, 1.0f, 1.0f, 1.0f});
+
+      public:
+        STATIC Camera2D *GetCamera();
 
       public:
         STATIC INT32 Width()
@@ -69,6 +70,5 @@ namespace ia::iae
       private:
         STATIC INT32 s_width;
         STATIC INT32 s_height;
-        STATIC Vector<DebugUIWindow> s_debugUIWindows;
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Rendering/Types.hpp

@@ -20,11 +20,10 @@
 
 namespace ia::iae
 {
-    struct Vertex_Mesh
+    struct MeshVertex
     {
         glm::vec3 Position{};
         glm::vec2 UV{};
+        glm::vec4 Color{};
     };
-
-    
 }

Src/IAEngine/inc/IAEngine/Scene.hpp

@@ -25,8 +25,11 @@ namespace ia::iae
       public:
         ~Scene();
 
-        VOID Draw();
-        VOID Update();
+        VIRTUAL VOID OnActivate();
+        VIRTUAL VOID OnDeactivate();
+
+        VIRTUAL VOID Draw();
+        VIRTUAL VOID Update();
 
       public:
         VOID AddNode(IN RefPtr<Node> node);
@@ -43,8 +46,14 @@ namespace ia::iae
             return m_ySortingEnabled;
         }
 
+        glm::vec4 &Bounds()
+        {
+            return m_bounds;
+        }
+
       private:
         BOOL m_ySortingEnabled{false};
         Vector<RefPtr<Node>> m_nodes;
+        glm::vec4 m_bounds;
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Texture.hpp

@@ -23,14 +23,10 @@ namespace ia::iae
     class Texture
     {
       public:
-        Texture(IN Handle handle, IN INT32 width, IN INT32 height);
         Texture();
+        Texture(IN Handle handle, IN INT32 width, IN INT32 height);
         ~Texture();
 
-      public:
-        VOID Draw(IN FLOAT32 sortOffset, IN CONST glm::vec3 &position, IN CONST glm::vec3 &scale, IN FLOAT32 rotation,
-                  IN BOOL flipH, IN BOOL flipV, IN CONST glm::vec4 &colorOverlay) CONST;
-
       public:
         Handle GetHandle() CONST
         {
@@ -39,16 +35,21 @@ namespace ia::iae
 
         INT32 GetWidth() CONST
         {
-            return (INT32) m_size.x;
+            return (INT32) m_extent.x;
         }
 
         INT32 GetHeight() CONST
         {
-            return (INT32) m_size.y;
+            return (INT32) m_extent.y;
+        }
+
+        CONST glm::vec2 &GetExtent() CONST
+        {
+            return m_extent;
         }
 
       private:
         Handle m_handle{INVALID_HANDLE};
-        glm::vec3 m_size{};
+        glm::vec2 m_extent{};
     };
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/UI.hpp

@@ -0,0 +1,59 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <IAEngine/Base.hpp>
+
+namespace ia::iae
+{
+    class UI
+    {
+      public:
+        STATIC VOID AddFontFromFile(IN CONST String &path);
+
+        STATIC Handle AddWindowFromFile(IN CONST String &path);
+
+        STATIC VOID DestroyWindow(IN Handle handle);
+
+        STATIC VOID ShowWindow(IN Handle handle);
+        STATIC VOID HideWindow(IN Handle handle);
+
+        STATIC String GetInputValue(IN INT32 index);
+        STATIC VOID SetInputValue(IN INT32 index, IN CONST String& value);
+
+        STATIC VOID AddClickEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback);
+        STATIC VOID AddHoverEnterEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback);
+        STATIC VOID AddHoverExitEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback);
+        STATIC VOID AddPointerDownEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback);
+        STATIC VOID AddPointerUpEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback);
+
+        STATIC VOID EnableDebugger();
+        STATIC VOID DisableDebugger();
+
+      private:
+        STATIC VOID Initialize(IN INT32 width, IN INT32 height);
+        STATIC VOID Terminate();
+
+        STATIC VOID Draw();
+        STATIC VOID Update();
+
+        STATIC VOID OnEvent(IN PVOID event);
+        STATIC VOID OnResize(IN INT32 width, IN INT32 height);
+
+        friend class Engine;
+    };
+} // namespace ia::iae

Src/IAEngine/srcgen/embed_shaders.py

@@ -34,7 +34,9 @@ SHADER_SOURCE_PATH = "Src/IAEngine/imp/glsl"
 
 SHADER_SOURCE_FILES = [
     "UnlitMesh/UnlitMesh.vert",
-    "UnlitMesh/UnlitMesh.frag"
+    "UnlitMesh/UnlitMesh.frag",
+    "PostProcessing/PostProcess.vert",
+    "PostProcessing/PostProcess.frag"
 ]
 
 def file_to_source_array(arrayName, filePath):

Vendor/CMakeLists.txt

@@ -1,4 +1,4 @@
-# -----------------------------------------------
+#-----------------------------------------------
 #  SDL3
 # -----------------------------------------------
 set(SDL_TEST_LIBRARY OFF)
@@ -41,3 +41,16 @@ target_include_directories(
 #  GLM
 # -----------------------------------------------
 add_subdirectory(glm/)
+
+# -----------------------------------------------
+#  FreeType
+# -----------------------------------------------
+add_subdirectory(freetype/)
+
+add_library(Freetype::Freetype ALIAS freetype)
+
+# -----------------------------------------------
+#  RmlUI
+# -----------------------------------------------
+add_subdirectory(RmlUI/)
+