Optimized Renderer

Engine/Src/Imp/CPP/Components/CameraComponent.cpp

@@ -39,7 +39,7 @@ namespace ia::iae
 
     CONST Mat4 *CameraComponent::GetViewMatrix()
     {
-        const auto pos = (m_node->GetPosition() + m_positionOffset) * Engine::GetRendererScalingFactor();
+        const auto pos = (m_node->GetPosition() + m_positionOffset) * Engine::GetSceneScalingFactor();
         m_viewMatrix = glm::lookAtLH(glm::vec3{pos, -2.0f}, {pos, 0.0f}, {0.0f, 1.0f, 0.0f});
         return &m_viewMatrix;
     }

Engine/Src/Imp/CPP/Components/TextureComponent.cpp

@@ -35,15 +35,15 @@ namespace ia::iae
         m_textureExtent = {t.x, t.y};
         m_drawnSize = m_node->GetScale() * m_textureExtent * m_scaleOffset;
 
-        Engine::SetRenderState_Texture(m_texture);
         Engine::SetRenderState_FlippedH(m_isFlippedH);
         Engine::SetRenderState_FlippedV(m_isFlippedV);
         Engine::SetRenderState_ColorOverlay(m_colorOverlay);
         Engine::SetRenderState_TextureOffset(m_textureOffset);
         Engine::SetRenderState_CameraRelative(m_isCameraRelative);
-        Engine::SetRenderState_Transform(m_node->GetPosition() + m_positionOffset, m_node->GetScale() * Vec2{t2.x, t2.y} * m_scaleOffset, m_node->GetRotation() + m_rotationOffset);
 
-        Engine::DrawGeometry(Engine::GetGeometry_Quad(), m_node->Layer(), m_node->SortIndex());
+        Engine::DrawGeometry(Engine::GetGeometry_Quad(), m_texture, m_node->GetPosition() + m_positionOffset,
+                             m_node->GetScale() * Vec2{t2.x, t2.y} * m_scaleOffset,
+                             m_node->GetRotation() + m_rotationOffset, m_node->Layer(), m_node->SortIndex());
     }
 
     VOID TextureComponent::DebugDraw()

Engine/Src/Imp/CPP/Components/UIButtonComponent.cpp

@@ -0,0 +1,65 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IASoft (PVT) LTD (oss@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/UIButtonComponent.hpp>
+#include <IAEngine/Engine.hpp>
+#include <IAEngine/Nodes/UINode.hpp>
+
+namespace ia::iae
+{
+    UIButtonComponent::UIButtonComponent(IN UINode *node) : UIImageComponent(node)
+    {
+    }
+
+    VOID UIButtonComponent::Draw()
+    {
+        UIImageComponent::Draw();
+
+        if (m_label.length())
+        {
+            Engine::SetRenderState_FlippedH(false);
+            Engine::SetRenderState_FlippedV(false);
+            Engine::SetRenderState_ColorOverlay(m_labelColor);
+            Engine::SetRenderState_TextureOffset({});
+            Engine::SetRenderState_CameraRelative(false);
+            Engine::DrawText(m_label, m_node->GetPosition() + m_labelPosition, m_node->GetScale() * m_labelSize,
+                             m_node->GetRotation(), 0xFF, 0);
+        }
+    }
+
+    VOID UIButtonComponent::DebugDraw()
+    {
+    }
+
+    VOID UIButtonComponent::Update()
+    {
+        if (Engine::Input_IsPointerDown(m_node->GetPosition(), m_node->GetPosition() + DrawnSize()))
+        {
+            if (m_onDownCallback)
+                m_onDownCallback();
+        }
+
+        if (Engine::Input_DidPointerClick(m_node->GetPosition(), m_node->GetPosition() + DrawnSize()))
+        {
+            if (m_onClickCallback)
+                m_onClickCallback();
+        }
+    }
+
+    VOID UIButtonComponent::FixedUpdate()
+    {
+    }
+} // namespace ia::iae

Engine/Src/Imp/CPP/Components/UIImageComponent.cpp

@@ -0,0 +1,52 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IASoft (PVT) LTD (oss@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/Engine.hpp>
+#include <IAEngine/Nodes/UINode.hpp>
+#include <IAEngine/Components/UIImageComponent.hpp>
+
+namespace ia::iae
+{
+    UIImageComponent::UIImageComponent(IN UINode *node) : IUIComponent(node)
+    {
+    }
+
+    VOID UIImageComponent::Draw()
+    {
+        const auto t = Engine::GetImageOriginalExtent(m_image);
+        m_drawnSize = {m_node->GetScale() * t.x, m_node->GetScale() * t.y};
+
+        Engine::SetRenderState_FlippedH(false);
+        Engine::SetRenderState_FlippedV(false);
+        Engine::SetRenderState_ColorOverlay({0xFF, 0xFF, 0xFF, 0xFF});
+        Engine::SetRenderState_TextureOffset({});
+        Engine::SetRenderState_CameraRelative(false);
+        
+        Engine::DrawGeometry(Engine::GetGeometry_Quad(), m_image, m_node->GetPosition(), m_drawnSize, m_node->GetRotation(), 0xFF, 0);
+    }
+
+    VOID UIImageComponent::DebugDraw()
+    {
+    }
+
+    VOID UIImageComponent::Update()
+    {
+    }
+
+    VOID UIImageComponent::FixedUpdate()
+    {
+    }
+} // namespace ia::iae

Engine/Src/Imp/CPP/Components/UILabelComponent.cpp

@@ -26,10 +26,9 @@ namespace ia::iae
 
     VOID UILabelComponent::Draw()
     {
-        Engine::SetRenderState_Texture(0);
         Engine::SetRenderState_FlippedH(false);
         Engine::SetRenderState_FlippedV(false);
-        Engine::SetRenderState_ColorOverlay({0xFF, 0xFF, 0xFF, 0xFF});
+        Engine::SetRenderState_ColorOverlay(m_color);
         Engine::SetRenderState_TextureOffset({});
         Engine::SetRenderState_CameraRelative(false);
         Engine::DrawText(m_label, m_node->GetPosition(), m_node->GetScale(), m_node->GetRotation(), 0xFF, 0);

Engine/Src/Imp/CPP/Engine.cpp

@@ -24,10 +24,15 @@
 
 #include <SDL3/SDL_iostream.h>
 
+#include <ResourceManager.hpp>
+
 namespace ia::iae
 {
     EXTERN SDL_Window *g_windowHandle;
-    SIZE_T g_resourceNameCounter = 1;
+    SIZE_T g_resourceNameCounter {1};
+
+    Vec2 g_sceneScalingFactor{1.0f};
+    Vec2 g_sceneDesignViewport{1.0f};
 
     BOOL Engine::IsDebugMode()
     {
@@ -96,8 +101,12 @@ namespace ia::iae
     {
         const auto data = ReadBinaryAsset(path);
         const auto handle = CreateImage(name, data.data(), data.size());
+        if (!resizeToWidth || !resizeToHeight)
+            return handle;
         const auto extent = GetImageExtent(handle);
-        return (resizeToWidth && resizeToHeight) ? RescaleImage(handle, {(FLOAT32)resizeToWidth/(FLOAT32)extent.x, (FLOAT32)resizeToHeight/(FLOAT32)extent.y}) : handle;
+        const auto newHandle = ResourceManager::RescaleImage(
+            handle, {(FLOAT32) resizeToWidth / (FLOAT32) extent.x, (FLOAT32) resizeToHeight / (FLOAT32) extent.y}, true);
+        return newHandle;
     }
 
     Handle Engine::CreateSoundFromFile(IN CONST String &name, IN CONST String &path)
@@ -108,11 +117,16 @@ namespace ia::iae
 
     Handle Engine::RescaleImage(IN CONST String &name, IN Vec2 factor)
     {
-        return RescaleImage(GetImage(name), factor);
+        return ResourceManager::RescaleImage(GetImage(name), factor);
     }
 
     String Engine::GetUniqueResourceName()
     {
         return BuildString("__res_", g_resourceNameCounter++);
     }
+
+    Vec2 Engine::GetSceneScalingFactor()
+    {
+        return g_sceneScalingFactor;
+    }
 } // namespace ia::iae

Engine/Src/Imp/CPP/InputManager.cpp

@@ -24,6 +24,8 @@ namespace ia::iae
     BOOL InputManager::s_keys[256];
     BOOL InputManager::s_prevKeys[256];
     Vec2 InputManager::s_pointerPosition{};
+    BOOL InputManager::s_pointerState{};
+    BOOL InputManager::s_pointerPrevState{};
     InputManager::KeyboardGamePadMapping InputManager::s_keyboardGamePadMapping{};
 
     BOOL InputManager::s_buttonA{};
@@ -48,6 +50,7 @@ namespace ia::iae
 
     VOID InputManager::OnSDLEvent(IN SDL_Event *event)
     {
+        s_pointerPrevState = s_pointerState;
         memcpy(s_prevKeys, s_keys, sizeof(s_prevKeys));
         switch (event->type)
         {
@@ -59,10 +62,21 @@ namespace ia::iae
             s_keys[event->key.scancode] = false;
             break;
 
+        case SDL_EVENT_FINGER_MOTION:
         case SDL_EVENT_MOUSE_MOTION:
             s_pointerPosition = {event->motion.x, event->motion.y};
             break;
 
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
+        case SDL_EVENT_FINGER_DOWN:
+            s_pointerState = true;
+            break;
+
+        case SDL_EVENT_MOUSE_BUTTON_UP:
+        case SDL_EVENT_FINGER_UP:
+            s_pointerState = false;
+            break;
+
         default:
             break;
         }
@@ -78,6 +92,11 @@ namespace ia::iae
         SDL_StopTextInput(g_windowHandle);
     }
 
+    BOOL InputManager::IsPointerDown()
+    {
+        return s_pointerState;
+    }
+
     Vec2 InputManager::GetPointerPosition()
     {
         return s_pointerPosition;
@@ -178,16 +197,16 @@ namespace ia::iae
     {
         if (s_onScreenGamePadEnabled)
         {
-            //Engine::SetRenderState_Texture(0);
+            // Engine::SetRenderState_Texture(0);
-            //Engine::SetRenderState_FlippedH(false);
+            // Engine::SetRenderState_FlippedH(false);
-            //Engine::SetRenderState_FlippedV(false);
+            // Engine::SetRenderState_FlippedV(false);
-            //Engine::SetRenderState_ColorOverlay({0xFF, 0xFF, 0xFF, 0xFF});
+            // Engine::SetRenderState_ColorOverlay({0xFF, 0xFF, 0xFF, 0xFF});
-            //Engine::SetRenderState_TextureOffset({0, 0});
+            // Engine::SetRenderState_TextureOffset({0, 0});
-            //Engine::SetRenderState_CameraRelative(false);
+            // Engine::SetRenderState_CameraRelative(false);
-            //Engine::SetRenderState_Transform({300.0f, 500.0f},
+            // Engine::SetRenderState_Transform({300.0f, 500.0f},
-            //                                 {100.0f, 100.0f},
+            //                                  {100.0f, 100.0f},
-            //                                 0);
+            //                                  0);
-            //Engine::DrawGeometry(Engine::GetGeometry_Circle(), 0xFF, 0);
+            // Engine::DrawGeometry(Engine::GetGeometry_Circle(), 0xFF, 0);
         }
     }
 
@@ -216,6 +235,18 @@ namespace ia::iae
                 IsKeyDown(s_keyboardGamePadMapping.AxisRight) + IsKeyDown(s_keyboardGamePadMapping.AxisLeft) * -1;
         }
     }
+
+    BOOL InputManager::IsPointerDown(IN CONST Vec2 &start, IN CONST Vec2 &end)
+    {
+        if(!s_pointerState) return false;
+        return (s_pointerPosition.x >= start.x) && (s_pointerPosition.x <= end.x) && (s_pointerPosition.y >= start.y) &&
+               (s_pointerPosition.y <= end.y);
+    }
+
+    BOOL InputManager::DidPointerClick(IN CONST Vec2 &start, IN CONST Vec2 &end)
+    {
+        return IsPointerDown(start, end) && !s_pointerPrevState;
+    }
 } // namespace ia::iae
 
 namespace ia::iae
@@ -235,6 +266,21 @@ namespace ia::iae
         return InputManager::GetPointerPosition();
     }
 
+    BOOL Engine::Input_IsPointerDown()
+    {
+        return InputManager::IsPointerDown();
+    }
+
+    BOOL Engine::Input_IsPointerDown(IN CONST Vec2 &start, IN CONST Vec2 &end)
+    {
+        return InputManager::IsPointerDown(start, end);
+    }
+
+    BOOL Engine::Input_DidPointerClick(IN CONST Vec2 &start, IN CONST Vec2 &end)
+    {
+        return InputManager::DidPointerClick(start, end);
+    }
+
     BOOL Engine::Input_IsKeyDown(IN InputKey key)
     {
         return InputManager::IsKeyDown(key);

Engine/Src/Imp/CPP/InternalEngine.cpp

@@ -42,10 +42,15 @@ namespace ia::iae
 
     SDL_Window *g_windowHandle;
 
+    EXTERN Vec2 g_sceneDesignViewport;
+
     VOID __Internal_Engine::Initialize()
     {
         const auto config = Game_GetConfigRequest();
 
+        g_sceneDesignViewport.x = config->DesignWidth;
+        g_sceneDesignViewport.y = config->DesignHeight;
+
         IAE_LOG_INFO("Booting IAEngine for ", g_gameName);
 
         SDL_SetHint(SDL_HINT_ORIENTATIONS, "LandscapeRight");

Engine/Src/Imp/CPP/Renderer/Renderer.cpp

@@ -39,11 +39,7 @@ namespace ia::iae
     Renderer::State Renderer::s_state{};
     SDL_GPUDevice *Renderer::s_gpuDevice{};
 
-    SDL_GPUTexture *Renderer::s_renderTargetSceneColor{};
-    SDL_GPUTexture *Renderer::s_renderTargetDebugDrawColor{};
-
     Pipeline *Renderer::s_geometryPipeline{};
-    Pipeline *Renderer::s_postprocessPipeline{};
 
     Renderer::Geometry *Renderer::s_quadGeometry{};
     Renderer::Geometry *Renderer::s_circleGeometry{};
@@ -54,10 +50,12 @@ namespace ia::iae
     SDL_GPUCommandBuffer *Renderer::s_activeCommandBuffer{};
     SDL_GPUColorTargetInfo Renderer::s_colorTargetInfo{};
     class CameraComponent *Renderer::s_activeCamera{};
+    BOOL Renderer::s_ySortingEnabled{false};
+    SDL_Rect Renderer::s_defaultScissor{};
+    SDL_GPUViewport Renderer::s_defaultViewport{};
 
-    SDL_Rect Renderer::s_scissor{0, 0, 0, 0};
+    EXTERN Vec2 g_sceneScalingFactor;
-    SDL_GPUViewport Renderer::s_activeViewport{};
+    EXTERN Vec2 g_sceneDesignViewport;
-    Vec2 Renderer::s_sceneScaleFactor{1.0f, 1.0f};
 
     VOID Renderer::Initialize()
     {
@@ -81,7 +79,7 @@ namespace ia::iae
         SDL_GetWindowSizeInPixels(g_windowHandle, &s_screenWidth, &s_screenHeight);
         OnScreenResize(s_screenWidth, s_screenHeight);
 
-        // Initialize Pipelines
+        // Initialize Pipeline
         s_geometryPipeline = new Pipeline(
             Pipeline::StageDesc{
                 .SourceData = SHADER_SOURCE_GEOMETRY_VERT,
@@ -96,20 +94,6 @@ namespace ia::iae
                 .UniformBufferCount = 1,
             },
             true, true);
-        s_postprocessPipeline = new Pipeline(
-            Pipeline::StageDesc{
-                .SourceData = SHADER_SOURCE_POSTPROCESS_VERT,
-                .SourceLength = sizeof(SHADER_SOURCE_POSTPROCESS_VERT),
-                .SamplerCount = 0,
-                .UniformBufferCount = 0,
-            },
-            Pipeline::StageDesc{
-                .SourceData = SHADER_SOURCE_POSTPROCESS_FRAG,
-                .SourceLength = sizeof(SHADER_SOURCE_POSTPROCESS_FRAG),
-                .SamplerCount = 2,
-                .UniformBufferCount = 0,
-            },
-            false, false);
 
         DebugDraw::Initialize();
 
@@ -256,10 +240,6 @@ namespace ia::iae
         DebugDraw::Terminate();
 
         delete s_geometryPipeline;
-        delete s_postprocessPipeline;
-
-        GPUResourceManager::DestroyTexture(s_renderTargetSceneColor);
-        GPUResourceManager::DestroyTexture(s_renderTargetDebugDrawColor);
 
         GPUResourceManager::Terminate();
 
@@ -267,6 +247,8 @@ namespace ia::iae
         SDL_DestroyGPUDevice(s_gpuDevice);
     }
 
+    ImDrawData *g_imDrawData{};
+
     VOID Renderer::BeginFrame()
     {
         s_drawEntries.clear();
@@ -274,18 +256,50 @@ namespace ia::iae
         if (!(s_activeCommandBuffer = SDL_AcquireGPUCommandBuffer(s_gpuDevice)))
             THROW_UNKNOWN("Failed to acquire SDL GPU command buffer: ", SDL_GetError());
 
+        SDL_GPUTexture *swapChainTexture{};
+        if (!SDL_WaitAndAcquireGPUSwapchainTexture(s_activeCommandBuffer, g_windowHandle, &swapChainTexture,
+                                                   (PUINT32) &s_screenWidth, (PUINT32) &s_screenHeight))
+            THROW_UNKNOWN("Failed to acquire SDL GPU Swapchain texture: ", SDL_GetError());
+
+        if (!swapChainTexture)
+            return;
+
+        DebugDraw::Render();
+        g_imDrawData = ImGui::GetDrawData();
+        ImGui_ImplSDLGPU3_PrepareDrawData(g_imDrawData, s_activeCommandBuffer);
+
         const auto clearColor = WorldManager::GetActiveScene()->BackgroundColor().GetAsFloatVec();
         s_colorTargetInfo.clear_color = SDL_FColor{clearColor.x, clearColor.y, clearColor.z, 1.0f};
-        s_colorTargetInfo.texture = s_renderTargetSceneColor;
+        s_colorTargetInfo.texture = swapChainTexture;
         s_activeRenderPass = SDL_BeginGPURenderPass(s_activeCommandBuffer, &s_colorTargetInfo, 1, nullptr);
 
         SDL_BindGPUGraphicsPipeline(s_activeRenderPass, s_geometryPipeline->GetHandle());
         SDL_PushGPUVertexUniformData(s_activeCommandBuffer, 0,
                                      s_activeCamera ? s_activeCamera->GetProjectionMatrix() : &IdentityMatrix,
                                      sizeof(Mat4));
+
+        s_state.Scissor = s_defaultScissor;
     }
 
     VOID Renderer::EndFrame()
+    {
+        std::sort(s_drawEntries.begin(), s_drawEntries.end(), [](IN CONST DrawEntry &a, IN CONST DrawEntry &b) {
+            if (a.Layer != b.Layer)
+                return a.Layer < b.Layer;
+            return a.SortIndex < b.SortIndex;
+        });
+
+        for (const auto &t : s_drawEntries)
+            Draw(t);
+
+        ImGui_ImplSDLGPU3_RenderDrawData(g_imDrawData, s_activeCommandBuffer, s_activeRenderPass);
+
+        SDL_EndGPURenderPass(s_activeRenderPass);
+
+        SDL_SubmitGPUCommandBuffer(s_activeCommandBuffer);
+    }
+
+    VOID Renderer::Draw(IN CONST DrawEntry &t)
     {
 #pragma pack(push, 1)
 
@@ -299,78 +313,39 @@ namespace ia::iae
 
 #pragma pack(pop)
 
-        std::sort(s_drawEntries.begin(), s_drawEntries.end(), [](IN CONST DrawEntry &a, IN CONST DrawEntry &b) {
+        Vec2 position = t.DrawState.Position * g_sceneScalingFactor;
-            if (a.Layer != b.Layer)
+        Vec2 scale = t.DrawState.Scale * g_sceneScalingFactor;
-                return a.Layer < b.Layer;
-            return a.SortIndex < b.SortIndex;
-        });
 
-        for (const auto &t : s_drawEntries)
+        Mat4 modelMatrix = glm::translate(glm::mat4(1.0f), glm::vec3{position.x, position.y, 0});
-        {
+        modelMatrix = glm::rotate(modelMatrix, t.DrawState.Rotation, glm::vec3(0.0f, 0.0f, 1.0f));
-            SDL_PushGPUVertexUniformData(
+        modelMatrix = glm::scale(modelMatrix, glm::vec3{scale.x, scale.y, 1.0f});
-                s_activeCommandBuffer, 1,
-                (s_activeCamera && t.DrawState.CameraRelative) ? s_activeCamera->GetViewMatrix() : &IdentityMatrix,
-                sizeof(Mat4));
 
-            SDL_PushGPUVertexUniformData(Renderer::s_activeCommandBuffer, 2, &t.DrawState.ModelMatrix, sizeof(Mat4));
+        SDL_PushGPUVertexUniformData(s_activeCommandBuffer, 1,
+                                     (s_activeCamera && t.DrawState.CameraRelative) ? s_activeCamera->GetViewMatrix()
+                                                                                    : &IdentityMatrix,
+                                     sizeof(Mat4));
 
-            s_fragmentUniform.ColorOverlay = t.DrawState.ColorOverlay.GetAsFloatVec();
+        SDL_PushGPUVertexUniformData(Renderer::s_activeCommandBuffer, 2, &modelMatrix, sizeof(Mat4));
-            s_fragmentUniform.FlippedH = t.DrawState.FlippedH;
-            s_fragmentUniform.FlippedV = t.DrawState.FlippedV;
-            s_fragmentUniform.TextureOffset = t.DrawState.TextureOffset;
-            SDL_GPUTextureSamplerBinding textureBinding{.texture = t.DrawState.ActiveTexture,
-                                                        .sampler = ((t.DrawState.TextureOffset.x <= FLOAT32_EPSILON) &&
-                                                                    (t.DrawState.TextureOffset.y <= FLOAT32_EPSILON))
-                                                                       ? GPUResourceManager::GetSampler_LinearClamp()
-                                                                       : GPUResourceManager::GetSampler_LinearRepeat()};
-            SDL_BindGPUFragmentSamplers(s_activeRenderPass, 0, &textureBinding, 1);
-            SDL_PushGPUFragmentUniformData(s_activeCommandBuffer, 0, &s_fragmentUniform, sizeof(s_fragmentUniform));
 
-            // SDL_SetGPUScissor(s_activeRenderPass, &s_scissor);
+        s_fragmentUniform.ColorOverlay = t.DrawState.ColorOverlay.GetAsFloatVec();
-            // SDL_SetGPUViewport(s_activeRenderPass, &s_activeViewport);
+        s_fragmentUniform.FlippedH = t.DrawState.FlippedH;
+        s_fragmentUniform.FlippedV = t.DrawState.FlippedV;
+        s_fragmentUniform.TextureOffset = t.DrawState.TextureOffset;
+        SDL_GPUTextureSamplerBinding textureBinding{.texture = t.DrawState.ActiveTexture,
+                                                    .sampler = ((t.DrawState.TextureOffset.x <= FLOAT32_EPSILON) &&
+                                                                (t.DrawState.TextureOffset.y <= FLOAT32_EPSILON))
+                                                                   ? GPUResourceManager::GetSampler_LinearClamp()
+                                                                   : GPUResourceManager::GetSampler_LinearRepeat()};
+        SDL_BindGPUFragmentSamplers(s_activeRenderPass, 0, &textureBinding, 1);
+        SDL_PushGPUFragmentUniformData(s_activeCommandBuffer, 0, &s_fragmentUniform, sizeof(s_fragmentUniform));
 
-            SDL_GPUBufferBinding bufferBindings[] = {{.buffer = t.GeometryHandle->VertexBuffer, .offset = 0},
+        SDL_SetGPUScissor(s_activeRenderPass, &t.DrawState.Scissor);
-                                                     {.buffer = t.GeometryHandle->IndexBuffer, .offset = 0}};
-            SDL_BindGPUVertexBuffers(s_activeRenderPass, 0, bufferBindings, 1);
-            SDL_BindGPUIndexBuffer(s_activeRenderPass, &bufferBindings[1], SDL_GPU_INDEXELEMENTSIZE_32BIT);
-            SDL_DrawGPUIndexedPrimitives(s_activeRenderPass, t.GeometryHandle->IndexCount, 1, 0, 0, 0);
-        }
 
-        SDL_EndGPURenderPass(s_activeRenderPass);
+        SDL_GPUBufferBinding bufferBindings[] = {{.buffer = t.GeometryHandle->VertexBuffer, .offset = 0},
-
+                                                 {.buffer = t.GeometryHandle->IndexBuffer, .offset = 0}};
-        DebugDraw::Render();
+        SDL_BindGPUVertexBuffers(s_activeRenderPass, 0, bufferBindings, 1);
-        const auto imDrawData = ImGui::GetDrawData();
+        SDL_BindGPUIndexBuffer(s_activeRenderPass, &bufferBindings[1], SDL_GPU_INDEXELEMENTSIZE_32BIT);
-        ImGui_ImplSDLGPU3_PrepareDrawData(imDrawData, s_activeCommandBuffer);
+        SDL_DrawGPUIndexedPrimitives(s_activeRenderPass, t.GeometryHandle->IndexCount, 1, 0, 0, 0);
-        s_colorTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
-        s_colorTargetInfo.clear_color = SDL_FColor{0.0f, 0.0f, 0.0f, 0.0f};
-        s_colorTargetInfo.texture = s_renderTargetDebugDrawColor;
-        s_activeRenderPass = SDL_BeginGPURenderPass(s_activeCommandBuffer, &s_colorTargetInfo, 1, nullptr);
-        ImGui_ImplSDLGPU3_RenderDrawData(imDrawData, s_activeCommandBuffer, s_activeRenderPass);
-        SDL_EndGPURenderPass(s_activeRenderPass);
-
-        SDL_GPUTexture *swapChainTexture{};
-        if (!SDL_WaitAndAcquireGPUSwapchainTexture(s_activeCommandBuffer, g_windowHandle, &swapChainTexture,
-                                                   (PUINT32) &s_screenWidth, (PUINT32) &s_screenHeight))
-            THROW_UNKNOWN("Failed to acquire SDL GPU Swapchain texture: ", SDL_GetError());
-
-        if (!swapChainTexture)
-            return;
-
-        s_colorTargetInfo.clear_color = SDL_FColor{1.0f, 1.0f, 1.0f, 1.0f};
-        s_colorTargetInfo.load_op = SDL_GPU_LOADOP_CLEAR;
-        s_colorTargetInfo.texture = swapChainTexture;
-
-        s_activeRenderPass = SDL_BeginGPURenderPass(s_activeCommandBuffer, &s_colorTargetInfo, 1, nullptr);
-        SDL_BindGPUGraphicsPipeline(s_activeRenderPass, s_postprocessPipeline->GetHandle());
-        SDL_GPUTextureSamplerBinding textureBindings[2] = {
-            {.texture = s_renderTargetSceneColor, .sampler = GPUResourceManager::GetSampler_LinearClamp()},
-            {.texture = s_renderTargetDebugDrawColor, .sampler = GPUResourceManager::GetSampler_LinearClamp()},
-        };
-        SDL_BindGPUFragmentSamplers(s_activeRenderPass, 0, textureBindings, 2);
-        SDL_DrawGPUPrimitives(s_activeRenderPass, 6, 1, 0, 0);
-        SDL_EndGPURenderPass(s_activeRenderPass);
-
-        SDL_SubmitGPUCommandBuffer(s_activeCommandBuffer);
     }
 
     VOID Renderer::OnScreenResize(IN INT32 newWidth, IN INT32 newHeight)
@@ -378,38 +353,21 @@ namespace ia::iae
         s_screenWidth = newWidth;
         s_screenHeight = newHeight;
 
-        if (s_renderTargetSceneColor)
+        s_defaultScissor = {0, 0, newWidth, newHeight};
-            GPUResourceManager::DestroyTexture(s_renderTargetSceneColor);
-        if (s_renderTargetDebugDrawColor)
-            GPUResourceManager::DestroyTexture(s_renderTargetDebugDrawColor);
 
-        s_renderTargetSceneColor = GPUResourceManager::CreateTexture(
+        s_defaultViewport.x = 0;
-            SDL_GPU_TEXTUREUSAGE_COLOR_TARGET | SDL_GPU_TEXTUREUSAGE_SAMPLER, s_screenWidth, s_screenHeight, nullptr,
+        s_defaultViewport.y = 0;
-            SDL_GetGPUSwapchainTextureFormat(s_gpuDevice, g_windowHandle));
+        s_defaultViewport.w = newWidth;
-        s_renderTargetDebugDrawColor = GPUResourceManager::CreateTexture(
+        s_defaultViewport.h = newHeight;
-            SDL_GPU_TEXTUREUSAGE_COLOR_TARGET | SDL_GPU_TEXTUREUSAGE_SAMPLER, s_screenWidth, s_screenHeight, nullptr,
+        s_defaultViewport.min_depth = 0.0f;
-            SDL_GetGPUSwapchainTextureFormat(s_gpuDevice, g_windowHandle));
+        s_defaultViewport.max_depth = 1.0f;
-
-        s_scissor = {0, 0, newWidth, newHeight};
-
-        s_activeViewport.x = 0;
-        s_activeViewport.y = 0;
-        s_activeViewport.w = newWidth;
-        s_activeViewport.h = newHeight;
-        s_activeViewport.min_depth = 0.0f;
-        s_activeViewport.max_depth = 1.0f;
 
         if (s_activeCamera)
             s_activeCamera->SetViewport(newWidth, newHeight);
 
-        const auto activeScene = WorldManager::GetActiveScene();
+        g_sceneScalingFactor = {(FLOAT32) newWidth / g_sceneDesignViewport.x,
-        if (activeScene)
+                                (FLOAT32) newHeight / g_sceneDesignViewport.y};
-        {
+        IAE_LOG_INFO("Updated Scene Scale Factor: (", g_sceneScalingFactor.x, ", ", g_sceneScalingFactor.y, ")");
-            const auto sceneViewport = activeScene->Viewport();
-            s_sceneScaleFactor = {(FLOAT32) newWidth / (FLOAT32) sceneViewport.x,
-                                  (FLOAT32) newHeight / (FLOAT32) sceneViewport.y};
-            IAE_LOG_INFO("Updated Scene Scale Factor: (", s_sceneScaleFactor.x, ", ", s_sceneScaleFactor.y, ")");
-        }
     }
 
     SDL_GPUTextureFormat Renderer::GetRenderTargetFormat()
@@ -436,36 +394,38 @@ namespace ia::iae
         delete handle;
     }
 
-    VOID Renderer::DrawGeometry(IN Geometry *handle, IN UINT8 layer, IN UINT16 sortIndex)
+    VOID Renderer::DrawGeometry(IN Geometry *handle, IN SDL_GPUTexture *texture, IN Vec2 position, IN Vec2 scale,
+                                IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex)
     {
-        const auto t = (UINT16) (sortIndex + ((UINT16) s_state.PositionY * s_state.YSortingEnabled));
+        s_state.ActiveTexture = texture;
+        s_state.Position = position;
+        s_state.Rotation = rotation;
+        s_state.Scale = scale;
         s_drawEntries.pushBack(
-            DrawEntry{.Layer = layer, .SortIndex = t, .DrawState = s_state, .GeometryHandle = handle});
+            DrawEntry{.Layer = layer,
+                      .SortIndex = (UINT16) (sortIndex + ((UINT16) s_state.Position.y * s_ySortingEnabled)),
+                      .DrawState = s_state,
+                      .GeometryHandle = handle});
     }
 
     VOID Renderer::DrawText(IN CONST String &text, IN Vec2 position, IN FLOAT32 scale, IN FLOAT32 rotation,
                             IN UINT8 layer, IN UINT16 sortIndex)
     {
+        const auto t = (UINT16) (sortIndex + ((UINT16) s_state.Position.y * s_ySortingEnabled));
         const auto &font = FontManager::GetFont("Roboto");
-        const auto t = (UINT16) (sortIndex + ((UINT16) s_state.PositionY * s_state.YSortingEnabled));
-        Vec3 p{};
-        Vec3 s{};
         for (const auto &c : text)
         {
             if (!c)
                 break;
+
             const auto glyph = font.Chars[(UINT8) c];
 
-            p = Vec3(position.x, position.y, 0.0f) +
-                Vec3(glyph.Bearing.x, glyph.Size.y - glyph.Bearing.y, 0.0f) * scale;
-            p.y += (16 - glyph.Size.y) * scale;
-            s = Vec3(scale * glyph.Size.x, scale * glyph.Size.y, 1.0f);
-
             s_state.ActiveTexture = glyph.Texture;
-            s_state.PositionY = position.y;
+            s_state.Position = position + Vec2(glyph.Bearing.x, glyph.Size.y - glyph.Bearing.y) * scale;
-            s_state.ModelMatrix = glm::translate(glm::mat4(1.0f), p);
+            s_state.Position.y += (16 - glyph.Size.y) * scale;
-            s_state.ModelMatrix = glm::rotate(s_state.ModelMatrix, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
+            s_state.Rotation = rotation;
-            s_state.ModelMatrix = glm::scale(s_state.ModelMatrix, s);
+            s_state.Scale = Vec2(scale * glyph.Size.x, scale * glyph.Size.y);
+
             s_drawEntries.pushBack(
                 DrawEntry{.Layer = layer, .SortIndex = t, .DrawState = s_state, .GeometryHandle = s_quadGeometry});
 
@@ -502,11 +462,6 @@ namespace ia::iae
         return Renderer::s_activeCamera;
     }
 
-    Vec2 Engine::GetRendererScalingFactor()
-    {
-        return Renderer::s_sceneScaleFactor;
-    }
-
     Handle Engine::CreateGeometry(IN CONST Vector<GeometryVertex> &vertices, IN CONST Vector<INT32> &indices)
     {
         return (Handle) Renderer::CreateGeometry(vertices, indices);
@@ -517,9 +472,11 @@ namespace ia::iae
         Renderer::DestroyGeometry((Renderer::Geometry *) geometry);
     }
 
-    VOID Engine::DrawGeometry(IN Handle handle, IN UINT8 layer, IN UINT16 sortIndex)
+    VOID Engine::DrawGeometry(IN Handle handle, IN Handle texture, IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation,
+                              IN UINT8 layer, IN UINT16 sortIndex)
     {
-        Renderer::DrawGeometry((Renderer::Geometry *) handle, layer, sortIndex);
+        Renderer::DrawGeometry((Renderer::Geometry *) handle, ResourceManager::GetTextureFromImage(texture), position,
+                               scale, rotation, layer, sortIndex);
     }
 
     VOID Engine::DrawText(IN CONST String &text, IN Vec2 position, IN FLOAT32 scale, IN FLOAT32 rotation,
@@ -528,10 +485,24 @@ namespace ia::iae
         Renderer::DrawText(text, position, scale, rotation, layer, sortIndex);
     }
 
+    VOID Engine::DrawQuad(IN Vec2 position, IN Handle texture, IN Vec2 scale, IN FLOAT32 rotation, IN UINT8 layer,
+                          IN UINT16 sortIndex)
+    {
+        Renderer::DrawGeometry(Renderer::s_quadGeometry, ResourceManager::GetTextureFromImage(texture), position, scale,
+                               rotation, layer, sortIndex);
+    }
+
+    VOID Engine::DrawCircle(IN Vec2 position, IN Handle texture, IN FLOAT32 radius, IN FLOAT32 rotation, IN UINT8 layer,
+                            IN UINT16 sortIndex)
+    {
+        Renderer::DrawGeometry(Renderer::s_circleGeometry, ResourceManager::GetTextureFromImage(texture), position,
+                               {radius, radius}, rotation, layer, sortIndex);
+    }
+
     VOID Engine::SetRenderState_Scissor(IN IVec4 rect)
     {
-        Renderer::s_scissor = rect.z ? SDL_Rect{0, 0, Renderer::s_screenWidth, Renderer::s_screenHeight}
+        Renderer::s_state.Scissor = rect.z ? SDL_Rect{0, 0, Renderer::s_screenWidth, Renderer::s_screenHeight}
-                                     : SDL_Rect{rect.x, rect.y, rect.z, rect.w};
+                                           : SDL_Rect{rect.x, rect.y, rect.z, rect.w};
     }
 
     VOID Engine::SetRenderState_FlippedH(IN BOOL value)
@@ -559,35 +530,9 @@ namespace ia::iae
         Renderer::s_state.CameraRelative = value;
     }
 
-    VOID Engine::SetRenderState_Texture(IN Handle image)
-    {
-        Renderer::s_state.ActiveTexture = ResourceManager::GetTextureFromImage(image);
-    }
-
-    VOID Engine::SetRenderState_Transform(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation)
-    {
-        position *= Renderer::s_sceneScaleFactor;
-        scale *= Renderer::s_sceneScaleFactor;
-
-        Renderer::s_state.PositionY = position.y;
-
-        Renderer::s_state.ModelMatrix = glm::translate(glm::mat4(1.0f), glm::vec3{position.x, position.y, 0});
-        Renderer::s_state.ModelMatrix =
-            glm::rotate(Renderer::s_state.ModelMatrix, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
-        Renderer::s_state.ModelMatrix = glm::scale(Renderer::s_state.ModelMatrix, glm::vec3{scale.x, scale.y, 1.0f});
-    }
-
-    VOID Engine::SetRenderState_TransformUI(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation)
-    {
-        Renderer::s_state.ModelMatrix = glm::translate(glm::mat4(1.0f), glm::vec3{position.x, position.y, 0});
-        Renderer::s_state.ModelMatrix =
-            glm::rotate(Renderer::s_state.ModelMatrix, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
-        Renderer::s_state.ModelMatrix = glm::scale(Renderer::s_state.ModelMatrix, glm::vec3{scale.x, scale.y, 1.0f});
-    }
-
     VOID Engine::SetRenderState_YSortingEnabled(IN BOOL value)
     {
-        Renderer::s_state.YSortingEnabled = value;
+        Renderer::s_ySortingEnabled = value;
     }
 
     Handle Engine::GetGeometry_Quad()

Engine/Src/Imp/CPP/ResourceManager.cpp

@@ -61,8 +61,9 @@ namespace ia::iae
 
     Handle ResourceManager::CreateImage(IN CONST String &name, IN PCUINT8 rgbaData, IN INT32 width, IN INT32 height)
     {
-        const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, width, height, rgbaData,
+        const auto texture =
-                                                               SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
+            GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, width,
+                                              height, rgbaData, SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
         s_imageHandles.pushBack(ImageResource{.OriginalWidth = width,
                                               .OriginalHeight = height,
                                               .OriginalPixelData = new UINT8[width * height * 4],
@@ -137,7 +138,7 @@ namespace ia::iae
         return {t.OriginalWidth, t.OriginalHeight};
     }
 
-    Handle ResourceManager::RescaleImage(IN Handle image, IN Vec2 factor)
+    Handle ResourceManager::RescaleImage(IN Handle image, IN Vec2 factor, IN BOOL makeOriginal)
     {
         if (!s_imageHandles[image].OriginalPixelData)
             return image;
@@ -145,21 +146,29 @@ namespace ia::iae
         const auto newWidth = (INT32) (s_imageHandles[image].OriginalWidth * factor.x);
         const auto newHeight = (INT32) (s_imageHandles[image].OriginalHeight * factor.y);
 
-        if (!newWidth || !newHeight ||
+        if (!newWidth || !newHeight)
-            ((newWidth <= s_imageHandles[image].OriginalWidth) && (newHeight <= s_imageHandles[image].OriginalHeight)))
             return image;
 
         const auto newPixelData =
             stbir_resize_uint8_linear(s_imageHandles[image].OriginalPixelData, s_imageHandles[image].OriginalWidth,
                                       s_imageHandles[image].OriginalHeight, s_imageHandles[image].OriginalWidth * 4,
                                       nullptr, newWidth, newHeight, newWidth * 4, stbir_pixel_layout::STBIR_RGBA);
-        const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, newWidth, newHeight,
+        const auto texture = GPUResourceManager::CreateTexture(
-                                                               newPixelData, SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
+            SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, newWidth, newHeight, newPixelData,
+            SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
         GPUResourceManager::DestroyTexture(s_imageHandles[image].Handle);
         s_imageHandles[image].Handle = texture;
         s_imageHandles[image].Width = newWidth;
         s_imageHandles[image].Height = newHeight;
-        free(newPixelData);
+        if (!makeOriginal)
+        {
+            free(newPixelData);
+            return image;
+        }
+        free(s_imageHandles[image].OriginalPixelData);
+        s_imageHandles[image].OriginalPixelData = newPixelData;
+        s_imageHandles[image].OriginalWidth = newWidth;
+        s_imageHandles[image].OriginalHeight = newHeight;
         return image;
     }
 

Engine/Src/Imp/CPP/SceneManager.cpp

@@ -101,9 +101,6 @@ namespace ia::iae
         {
             auto t = propRoot.child("Extent");
             scene->Extent() = Vec2{t.attribute("width").as_float(), t.attribute("height").as_float()};
-
-            t = propRoot.child("Viewport");
-            scene->Viewport() = Vec2{t.attribute("width").as_float(), t.attribute("height").as_float()};
         }
 
         // Process Nodes

Engine/Src/Imp/CPP/UI.cpp

@@ -589,15 +589,13 @@ namespace ia::iae
                                               Rml::TextureHandle texture)
     {
 
-        Engine::SetRenderState_Texture((Handle) texture);
         Engine::SetRenderState_FlippedH(false);
         Engine::SetRenderState_FlippedV(false);
         Engine::SetRenderState_ColorOverlay({255, 255, 255, 255});
         Engine::SetRenderState_TextureOffset({0, 0});
         Engine::SetRenderState_CameraRelative(false);
-        Engine::SetRenderState_Transform({translation.x, translation.y}, {1.0f, 1.0f}, 0);
 
-        Engine::DrawGeometry((Handle) geometry, 0xFF, 0);
+        Engine::DrawGeometry((Handle) geometry, (Handle) texture, {translation.x, translation.y}, {1.0f, 1.0f}, 0, 0xFF, 0);
     }
 
     void RmlUIRenderInterface::ReleaseGeometry(Rml::CompiledGeometryHandle geometry)

Engine/Src/Imp/HPP/InputManager.hpp

@@ -41,7 +41,10 @@ namespace ia::iae
         STATIC VOID SwitchModeToText();
         STATIC VOID SwitchModeToAction();
 
+        STATIC BOOL IsPointerDown();
         STATIC Vec2 GetPointerPosition();
+        STATIC BOOL IsPointerDown(IN CONST Vec2& start, IN CONST Vec2& end);
+        STATIC BOOL DidPointerClick(IN CONST Vec2& start, IN CONST Vec2& end);
 
         STATIC BOOL IsKeyDown(IN InputKey key);
         STATIC BOOL WasKeyPressed(IN InputKey key);
@@ -74,6 +77,8 @@ namespace ia::iae
         STATIC INT16 s_horizontalAxis;
         STATIC BOOL s_keys[256];
         STATIC BOOL s_prevKeys[256];
+        STATIC BOOL s_pointerState;
+        STATIC BOOL s_pointerPrevState;
         STATIC Vec2 s_pointerPosition;
         STATIC BOOL s_onScreenGamePadEnabled;
         STATIC BOOL s_keyboardGamePadEnabled;

Engine/Src/Imp/HPP/Renderer/Renderer.hpp

@@ -16,17 +16,14 @@
 
 #pragma once
 
-#include <Renderer/Pipeline.hpp>
 #include <Renderer/GPUResourceManager.hpp>
+#include <Renderer/Pipeline.hpp>
 
 namespace ia::iae
 {
     class Renderer
     {
       public:
-        STATIC CONSTEXPR FLOAT32 MIN_DEPTH = -2097152.0f;
-        STATIC CONSTEXPR FLOAT32 MAX_DEPTH = 2097152.0f;
-
         struct Geometry
         {
             INT32 IndexCount{};
@@ -39,12 +36,16 @@ namespace ia::iae
             BOOL FlippedH{false};
             BOOL FlippedV{false};
             BOOL CameraRelative{true};
-            BOOL YSortingEnabled{false};
             Color ColorOverlay{};
             Vec2 TextureOffset{0.0f, 0.0f};
-            SDL_GPUTexture* ActiveTexture{nullptr};
+
-            Mat4 ModelMatrix{1.0f};
+            Vec2 Position{};
-            FLOAT32 PositionY{};
+            Vec2 Scale{};
+            FLOAT32 Rotation;
+
+            SDL_Rect Scissor{};
+
+            SDL_GPUTexture *ActiveTexture{nullptr};
         };
 
         struct DrawEntry
@@ -52,7 +53,7 @@ namespace ia::iae
             UINT8 Layer{};
             UINT16 SortIndex{};
             State DrawState{};
-            Geometry* GeometryHandle{};
+            Geometry *GeometryHandle{};
         };
 
       public:
@@ -67,11 +68,13 @@ namespace ia::iae
         STATIC VOID OnScreenResize(IN INT32 newWidth, IN INT32 newHeight);
 
       public:
-        STATIC Geometry* CreateGeometry(IN CONST Vector<GeometryVertex> &vertices, IN CONST Vector<INT32> &indices);
+        STATIC Geometry *CreateGeometry(IN CONST Vector<GeometryVertex> &vertices, IN CONST Vector<INT32> &indices);
-        STATIC VOID DestroyGeometry(IN Geometry* handle);
+        STATIC VOID DestroyGeometry(IN Geometry *handle);
 
-        STATIC VOID DrawGeometry(IN Geometry* handle, IN UINT8 layer, IN UINT16 sortIndex);
+        STATIC VOID DrawGeometry(IN Geometry *handle, IN SDL_GPUTexture* texture, IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation,
-        STATIC VOID DrawText(IN CONST String& text, IN Vec2 position, IN FLOAT32 scale, IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex);
+                                 IN UINT8 layer, IN UINT16 sortIndex);
+        STATIC VOID DrawText(IN CONST String &text, IN Vec2 position, IN FLOAT32 scale, IN FLOAT32 rotation,
+                             IN UINT8 layer, IN UINT16 sortIndex);
 
         STATIC SDL_GPUTextureFormat GetRenderTargetFormat();
 
@@ -80,25 +83,25 @@ namespace ia::iae
             return s_gpuDevice;
         }
 
+      private:
+        STATIC VOID Draw(IN CONST DrawEntry &entity);
+
       private:
         STATIC State s_state;
         STATIC INT32 s_screenWidth;
         STATIC INT32 s_screenHeight;
         STATIC SDL_GPUDevice *s_gpuDevice;
-        STATIC SDL_GPUTexture *s_renderTargetSceneColor;
+        STATIC Pipeline *s_geometryPipeline;
-        STATIC SDL_GPUTexture *s_renderTargetDebugDrawColor;
+        STATIC Geometry *s_quadGeometry;
-        STATIC Pipeline* s_geometryPipeline;
+        STATIC Geometry *s_circleGeometry;
-        STATIC Pipeline* s_postprocessPipeline;
-        STATIC Geometry* s_quadGeometry;
-        STATIC Geometry* s_circleGeometry;
         STATIC Vector<DrawEntry> s_drawEntries;
-        STATIC SDL_GPURenderPass* s_activeRenderPass;
+        STATIC SDL_GPURenderPass *s_activeRenderPass;
-        STATIC SDL_GPUCommandBuffer* s_activeCommandBuffer;
+        STATIC SDL_GPUCommandBuffer *s_activeCommandBuffer;
         STATIC SDL_GPUColorTargetInfo s_colorTargetInfo;
         STATIC class CameraComponent *s_activeCamera;
-        STATIC SDL_Rect s_scissor;
+        STATIC BOOL s_ySortingEnabled;
-        STATIC SDL_GPUViewport s_activeViewport;
+        STATIC SDL_Rect s_defaultScissor;
-        STATIC Vec2 s_sceneScaleFactor;
+        STATIC SDL_GPUViewport s_defaultViewport;
 
         friend class Engine;
     };

Engine/Src/Imp/HPP/ResourceManager.hpp

@@ -53,7 +53,7 @@ namespace ia::iae
         STATIC IVec2 GetImageExtent(IN Handle image);
         STATIC IVec2 GetImageOriginalExtent(IN Handle image);
         STATIC VOID RescaleAllImages(IN Vec2 factor);
-        STATIC Handle RescaleImage(IN Handle image, IN Vec2 factor);
+        STATIC Handle RescaleImage(IN Handle image, IN Vec2 factor, IN BOOL makeOriginal = false);
         STATIC Handle CombineImages(IN CONST Vector<Handle> &images, IN INT32 unitWidth, IN INT32 unitHeight,
                                     IN INT32 unitCountX, IN INT32 unitCountY);
 

Engine/Src/Inc/IAEngine/Components/UIButtonComponent.hpp

@@ -0,0 +1,79 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IASoft (PVT) LTD (oss@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/UIImageComponent.hpp>
+
+namespace ia::iae
+{
+    class UIButtonComponent : public UIImageComponent
+    {
+      public:
+        UIButtonComponent(IN UINode *node);
+
+        String &Label()
+        {
+            return m_label;
+        }
+
+        CONST String &Label() CONST
+        {
+            return m_label;
+        }
+
+        Vec2 &LabelPosition()
+        {
+            return m_labelPosition;
+        }
+
+        FLOAT32 &LabelSize()
+        {
+            return m_labelSize;
+        }
+
+        Color &LabelColor()
+        {
+            return m_labelColor;
+        }
+
+    public:
+        VOID SetOnDownCallback(IN std::function<VOID()> callback)
+        {
+            m_onDownCallback = callback;
+        }
+
+        VOID SetOnClickCallback(IN std::function<VOID()> callback)
+        {
+            m_onClickCallback = callback;
+        }
+
+      public:
+        VOID Draw();
+        VOID DebugDraw();
+
+        VOID Update();
+        VOID FixedUpdate();
+
+      private:
+        String m_label{};
+        Vec2 m_labelPosition{};
+        FLOAT32 m_labelSize{1.0f};
+        Color m_labelColor{0xFF, 0xFF, 0xFF, 0xFF};
+        std::function<VOID()> m_onDownCallback;
+        std::function<VOID()> m_onClickCallback;
+    };
+} // namespace ia::iae

Engine/Src/Inc/IAEngine/Components/UIImageComponent.hpp

@@ -0,0 +1,54 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IASoft (PVT) LTD (oss@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/IUIComponent.hpp>
+
+namespace ia::iae
+{
+    class UIImageComponent : public IUIComponent
+    {
+      public:
+        UIImageComponent(IN UINode *node);
+
+        Handle &Image()
+        {
+            return m_image;
+        }
+
+        CONST Handle &Image() CONST
+        {
+            return m_image;
+        }
+
+        CONST Vec2 &DrawnSize() CONST
+        {
+            return m_drawnSize;
+        }
+
+      public:
+        VOID Draw();
+        VOID DebugDraw();
+
+        VOID Update();
+        VOID FixedUpdate();
+
+      private:
+        Handle m_image{};
+        Vec2 m_drawnSize{};
+    };
+} // namespace ia::iae

Engine/Src/Inc/IAEngine/Components/UILabelComponent.hpp

@@ -23,7 +23,7 @@ namespace ia::iae
     class UILabelComponent : public IUIComponent
     {
       public:
-        UILabelComponent(IN UINode* node);
+        UILabelComponent(IN UINode *node);
 
         String &Label()
         {
@@ -35,6 +35,11 @@ namespace ia::iae
             return m_label;
         }
 
+        struct Color &Color()
+        {
+            return m_color;
+        }
+
       public:
         VOID Draw();
         VOID DebugDraw();
@@ -44,5 +49,6 @@ namespace ia::iae
 
       private:
         String m_label{};
+        struct Color m_color{0xFF, 0xFF, 0xFF, 0xFF};
     };
 } // namespace ia::iae

Engine/Src/Inc/IAEngine/Engine.hpp

@@ -47,10 +47,12 @@ namespace ia::iae
         STATIC Handle GetGeometry_Circle();
         STATIC Handle CreateGeometry(IN CONST Vector<GeometryVertex> &vertices, IN CONST Vector<INT32> &indices);
         STATIC VOID DestroyGeometry(IN Handle geometry);
-        STATIC VOID DrawGeometry(IN Handle handle, IN UINT8 layer, IN UINT16 sortIndex);
         STATIC IVec2 GetDisplayExtent();
         STATIC FLOAT32 GetDisplayAspectRatio();
         STATIC VOID ResizeDisplay(IN INT32 newWidth, IN INT32 newHeight);
+        STATIC VOID DrawGeometry(IN Handle geometry, IN Handle texture, IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex);
+        STATIC VOID DrawQuad(IN Vec2 position, IN Handle texture, IN Vec2 scale, IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex);
+        STATIC VOID DrawCircle(IN Vec2 position, IN Handle texture, IN FLOAT32 radius, IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex);
         STATIC VOID DrawText(IN CONST String& text, IN Vec2 position, IN FLOAT32 scale, IN FLOAT32 rotation, IN UINT8 layer, IN UINT16 sortIndex);
 
         // Renderer State Functions
@@ -61,10 +63,7 @@ namespace ia::iae
         STATIC VOID SetRenderState_YSortingEnabled(IN BOOL value);
         STATIC VOID SetRenderState_ColorOverlay(IN Color color);
         STATIC VOID SetRenderState_CameraRelative(IN BOOL value);
-        STATIC VOID SetRenderState_Texture(IN Handle image);
+        STATIC Vec2 GetSceneScalingFactor();
-        STATIC VOID SetRenderState_Transform(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation);
-        STATIC VOID SetRenderState_TransformUI(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation);
-        STATIC Vec2 GetRendererScalingFactor();
 
         // Debug Draw Functions
         STATIC VOID DebugDraw_SetColor(IN Color color);
@@ -107,7 +106,12 @@ namespace ia::iae
         // Input Functions
         STATIC VOID Input_SwitchModeToText();
         STATIC VOID Input_SwitchModeToAction();
+
+        STATIC BOOL Input_IsPointerDown();
         STATIC Vec2 Input_GetPointerPosition();
+        STATIC BOOL Input_DidPointerClick(IN CONST Vec2& start, IN CONST Vec2& end);
+        STATIC BOOL Input_IsPointerDown(IN CONST Vec2& start, IN CONST Vec2& end);
+
         STATIC BOOL Input_IsKeyDown(IN InputKey key);
         STATIC BOOL Input_WasKeyPressed(IN InputKey key);
         STATIC BOOL Input_WasKeyReleased(IN InputKey key);

Engine/Src/Inc/IAEngine/Scene.hpp

@@ -48,11 +48,6 @@ namespace ia::iae
             return m_extent;
         }
 
-        IVec2 &Viewport()
-        {
-            return m_viewport;
-        }
-
         Color &BackgroundColor()
         {
             return m_backgroundColor;
@@ -62,7 +57,6 @@ namespace ia::iae
         String m_uiMarkup{};
         String m_uiMarkupStyles{};
         IVec2 m_extent{100, 100};
-        IVec2 m_viewport{100, 100};
         CameraComponent *m_camera{};
         Color m_backgroundColor{0, 0, 0, 255};
         Map<String, RefPtr<INode>> m_nodes;