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kaplademo/source/kaplaDemo/SampleViewerScene.cpp

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+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//  * Neither the name of NVIDIA CORPORATION nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
+
+#include "SampleViewerScene.h"
+#include "PxMaterial.h"
+#include "ShaderShadow.h"
+
+#include <windows.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <GL/glut.h>
+
+
+#ifdef USE_OPTIX
+	SampleViewerScene::RenderType SampleViewerScene::mRenderType = SampleViewerScene::rtOPTIX;
+#else
+	SampleViewerScene::RenderType SampleViewerScene::mRenderType = SampleViewerScene::rtOPENGL;
+#endif	
+
+OptixRenderer *SampleViewerScene::mOptixRenderer = NULL;
+
+bool SampleViewerScene::mBenchmark = false;
+
+//-----------------------------------------------------------------------------
+SampleViewerScene::SampleViewerScene(PxPhysics* pxPhysics, PxCooking *pxCooking, bool isGrb,
+		Shader *defaultShader, const char *resourcePath, float slowMotionFactor)
+{
+	mPxPhysics = pxPhysics;
+	mPxCooking = pxCooking;
+	mCameraPos = PxVec3(0.0f, 20.0f, 10.0f);
+	mCameraDir = PxVec3(0.0f, 0.0f, 1.0f);
+    mCameraUp = PxVec3(0.0f, 1.0f, 0.0f);
+    mCameraFov = 40.f;
+	mDefaultShader = defaultShader;
+	//printf("hhh = %s\n", resourcePath);
+	mResourcePath = resourcePath;
+	mSlowMotionFactor = slowMotionFactor;
+	mDefaultMaterial = pxPhysics->createMaterial(0.5f, 0.5f, 0.0f);
+	mCameraDisable = false;
+}
+
+//-----------------------------------------------------------------------------
+SampleViewerScene::~SampleViewerScene()
+{
+	for (int i = 0; i < (int)mShaders.size(); i++)
+		delete mShaders[i];
+	mShaders.clear();
+}
+	
+// ----------------------------------------------------------------------------------------------
+void SampleViewerScene::getMouseRay(int xi, int yi, PxVec3 &orig, PxVec3 &dir)
+{
+	GLint viewPort[4];
+	GLdouble modelMatrix[16];
+	GLdouble projMatrix[16];
+	glGetIntegerv(GL_VIEWPORT, viewPort);
+	glGetDoublev(GL_MODELVIEW_MATRIX, modelMatrix);
+	glGetDoublev(GL_PROJECTION_MATRIX, projMatrix);
+
+	yi = viewPort[3] - yi - 1;
+	GLdouble x,y,z;
+	gluUnProject((GLdouble) xi, (GLdouble) yi, 0.0f,
+		modelMatrix, projMatrix, viewPort, &x, &y, &z);
+	orig = PxVec3((float)x, (float)y, (float)z);
+	gluUnProject((GLdouble) xi, (GLdouble) yi, 1.0f,
+		modelMatrix, projMatrix, viewPort, &x, &y, &z);
+	dir = PxVec3((float)x, (float)y, (float)z);
+	dir = dir - orig;
+	dir.normalize();
+	orig -= dir * 100.0f;	// to catch ray casts
+}
+
+// ----------------------------------------------------------------------------------------------
+void SampleViewerScene::setMaterial(float restitution, float staticFriction, float dynamicFriction)
+{
+	mDefaultMaterial->setRestitution(restitution);
+	mDefaultMaterial->setStaticFriction(staticFriction);
+	mDefaultMaterial->setDynamicFriction(dynamicFriction);
+}
+
+// ----------------------------------------------------------------------------------------------
+void SampleViewerScene::render(bool useShader)
+{
+#ifdef USE_OPTIX
+	if (mRenderType == rtOPTIX && mOptixRenderer == NULL)
+		mOptixRenderer = new OptixRenderer( getRendererOptions() );
+#endif
+}
+
+// ----------------------------------------------------------------------------------------------
+void SampleViewerScene::cleanupStaticResources()
+{
+#ifdef USE_OPTIX
+	if( mOptixRenderer ) {
+		OptixRenderer* ren = mOptixRenderer;
+		mOptixRenderer = 0;
+		delete ren;
+	}
+#endif
+}
+
+// ----------------------------------------------------------------------------------------------
+std::string SampleViewerScene::mRendererOptions;
+
+void SampleViewerScene::setRendererOptions( const char* text )
+{
+	if( text )  mRendererOptions = text;
+	else        mRendererOptions.clear();
+}