mirror of
https://github.com/bulletphysics/bullet3
synced 2024-12-15 06:00:12 +00:00
235 lines
6.9 KiB
C++
235 lines
6.9 KiB
C++
#include "OpenGLWindow/SimpleOpenGL3App.h"
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#include "Bullet3Common/b3Quaternion.h"
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#include "Bullet3Common/b3CommandLineArgs.h"
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#include "Bullet3Common/b3Transform.h"
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#include "assert.h"
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#include <stdio.h>
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char* gVideoFileName = 0;
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char* gPngFileName = 0;
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static b3WheelCallback sOldWheelCB = 0;
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static b3ResizeCallback sOldResizeCB = 0;
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static b3MouseMoveCallback sOldMouseMoveCB = 0;
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static b3MouseButtonCallback sOldMouseButtonCB = 0;
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static b3KeyboardCallback sOldKeyboardCB = 0;
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//static b3RenderCallback sOldRenderCB = 0;
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float gWidth = 0 ;
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float gHeight = 0;
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void MyWheelCallback(float deltax, float deltay)
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{
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if (sOldWheelCB)
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sOldWheelCB(deltax,deltay);
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}
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void MyResizeCallback( float width, float height)
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{
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gWidth = width;
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gHeight = height;
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if (sOldResizeCB)
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sOldResizeCB(width,height);
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}
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void MyMouseMoveCallback( float x, float y)
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{
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printf("Mouse Move: %f, %f\n", x,y);
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if (sOldMouseMoveCB)
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sOldMouseMoveCB(x,y);
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}
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void MyMouseButtonCallback(int button, int state, float x, float y)
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{
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if (sOldMouseButtonCB)
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sOldMouseButtonCB(button,state,x,y);
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}
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void MyKeyboardCallback(int keycode, int state)
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{
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//keycodes are in examples/CommonInterfaces/CommonWindowInterface.h
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//for example B3G_ESCAPE for escape key
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//state == 1 for pressed, state == 0 for released.
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// use app->m_window->isModifiedPressed(...) to check for shift, escape and alt keys
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printf("MyKeyboardCallback received key:%c in state %d\n",keycode,state);
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if (sOldKeyboardCB)
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sOldKeyboardCB(keycode,state);
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}
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#include "TinyRenderer.h"
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int main(int argc, char* argv[])
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{
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b3CommandLineArgs myArgs(argc,argv);
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SimpleOpenGL3App* app = new SimpleOpenGL3App("SimpleOpenGL3App",640,480,true);
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app->m_instancingRenderer->getActiveCamera()->setCameraDistance(13);
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app->m_instancingRenderer->getActiveCamera()->setCameraPitch(0);
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app->m_instancingRenderer->getActiveCamera()->setCameraTargetPosition(0,0,0);
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sOldKeyboardCB = app->m_window->getKeyboardCallback();
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app->m_window->setKeyboardCallback(MyKeyboardCallback);
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sOldMouseMoveCB = app->m_window->getMouseMoveCallback();
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app->m_window->setMouseMoveCallback(MyMouseMoveCallback);
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sOldMouseButtonCB = app->m_window->getMouseButtonCallback();
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app->m_window->setMouseButtonCallback(MyMouseButtonCallback);
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sOldWheelCB = app->m_window->getWheelCallback();
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app->m_window->setWheelCallback(MyWheelCallback);
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sOldResizeCB = app->m_window->getResizeCallback();
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app->m_window->setResizeCallback(MyResizeCallback);
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int textureWidth = gWidth;
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int textureHeight = gHeight;
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TinyRenderObjectData renderData(textureWidth, textureHeight);//, "african_head/african_head.obj");//floor.obj");
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//renderData.loadModel("african_head/african_head.obj");
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//renderData.loadModel("floor.obj");
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renderData.createCube(1,1,1);
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myArgs.GetCmdLineArgument("mp4_file",gVideoFileName);
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if (gVideoFileName)
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app->dumpFramesToVideo(gVideoFileName);
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myArgs.GetCmdLineArgument("png_file",gPngFileName);
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char fileName[1024];
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unsigned char* image=new unsigned char[textureWidth*textureHeight*4];
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int textureHandle = app->m_renderer->registerTexture(image,textureWidth,textureHeight);
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int cubeIndex = app->registerCubeShape(1,1,1);
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b3Vector3 pos = b3MakeVector3(0,0,0);
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b3Quaternion orn(0,0,0,1);
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b3Vector3 color=b3MakeVector3(1,0,0);
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b3Vector3 scaling=b3MakeVector3 (1,1,1);
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app->m_renderer->registerGraphicsInstance(cubeIndex,pos,orn,color,scaling);
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app->m_renderer->writeTransforms();
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do
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{
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static int frameCount = 0;
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frameCount++;
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if (gPngFileName)
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{
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printf("gPngFileName=%s\n",gPngFileName);
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sprintf(fileName,"%s%d.png",gPngFileName,frameCount++);
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app->dumpNextFrameToPng(fileName);
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}
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app->m_instancingRenderer->init();
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app->m_instancingRenderer->updateCamera();
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///clear the color and z (depth) buffer
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for(int y=0;y<textureHeight;++y)
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{
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unsigned char* pi=image+(y)*textureWidth*3;
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for(int x=0;x<textureWidth;++x)
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{
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TGAColor color;
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color.bgra[0] = 255;
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color.bgra[1] = 255;
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color.bgra[2] = 255;
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color.bgra[3] = 255;
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renderData.m_rgbColorBuffer.set(x,y,color);
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renderData.m_depthBuffer[x+y*textureWidth] = -1e30f;
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}
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}
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float projMat[16];
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app->m_instancingRenderer->getActiveCamera()->getCameraProjectionMatrix(projMat);
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float viewMat[16];
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app->m_instancingRenderer->getActiveCamera()->getCameraViewMatrix(viewMat);
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B3_ATTRIBUTE_ALIGNED16(float modelMat[16]);
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//sync the object transform
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b3Transform tr;
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tr.setIdentity();
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static float posUp = 0.f;
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// posUp += 0.001;
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b3Vector3 org = b3MakeVector3(0,posUp,0);
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tr.setOrigin(org);
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tr.getOpenGLMatrix(modelMat);
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for (int i=0;i<4;i++)
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{
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for (int j=0;j<4;j++)
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{
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renderData.m_viewMatrix[i][j] = viewMat[i+4*j];
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renderData.m_modelMatrix[i][j] = modelMat[i+4*j];
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}
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}
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//render the object
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TinyRenderer::renderObject(renderData);
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#if 1
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//update the texels of the texture using a simple pattern, animated using frame index
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for(int y=0;y<textureHeight;++y)
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{
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unsigned char* pi=image+(y)*textureWidth*3;
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for(int x=0;x<textureWidth;++x)
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{
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TGAColor color = renderData.m_rgbColorBuffer.get(x,y);
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pi[0] = color.bgra[2];
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pi[1] = color.bgra[1];
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pi[2] = color.bgra[0];
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pi[3] = 255;
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pi+=3;
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}
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}
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#else
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//update the texels of the texture using a simple pattern, animated using frame index
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for(int y=0;y<textureHeight;++y)
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{
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const int t=(y+frameCount)>>4;
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unsigned char* pi=image+y*textureWidth*3;
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for(int x=0;x<textureWidth;++x)
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{
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TGAColor color = renderData.m_rgbColorBuffer.get(x,y);
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const int s=x>>4;
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const unsigned char b=180;
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unsigned char c=b+((s+(t&1))&1)*(255-b);
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pi[0]=pi[1]=pi[2]=pi[3]=c;
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pi+=3;
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}
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}
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#endif
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app->m_renderer->activateTexture(textureHandle);
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app->m_renderer->updateTexture(textureHandle,image);
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float color[4] = {1,1,1,1};
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app->m_primRenderer->drawTexturedRect(0,0,gWidth/3,gHeight/3,color,0,0,1,1,true);
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app->m_renderer->renderScene();
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app->drawGrid();
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char bla[1024];
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sprintf(bla,"Simple test frame %d", frameCount);
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app->drawText(bla,10,10);
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app->swapBuffer();
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} while (!app->m_window->requestedExit());
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delete app;
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return 0;
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}
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