第一个OpenGL项目为验证此前的环境配置OpenGL一- GLEW库的编译和使用OpenGL二- GLUT库的编译和使用OpenGL三- GLTools库的编译和使用直接使用《OpenGL超级宝典 第5版》中第2章的三角形示例代码验证。环境配置GLEW使用静态库配置。详见OpenGL一- GLEW库的编译和使用GLUT使用动态库配置。详见OpenGL二- GLUT库的编译和使用GLTools依赖GLEW静态库使用静态库配置。详见OpenGL三- GLTools库的编译和使用代码使用《OpenGL超级宝典 第5版》2.5章节中的源码// Triangle.cpp// Our first OpenGL program that will just draw a triangle on the screen.#includeGLTools.h// OpenGL toolkit#includeGLShaderManager.h// Shader Manager Class#ifdef__APPLE__#includeglut/glut.h// OS X version of GLUT#else#defineFREEGLUT_STATIC#includeGL/glut.h// Windows FreeGlut equivalent#endif#includeGL/glew.hGLBatch triangleBatch;GLShaderManager shaderManager;///////////////////////////////////////////////////////////////////////////////// 62 CHAPTER 2 Getting Started// 04_0321712617_ch02.qxd 6 / 21 / 10 11:35 AM Page 62// Window has changed size, or has just been created. In either case, we need// to use the window dimensions to set the viewport and the projection matrix.voidChangeSize(intw,inth){glViewport(0,0,w,h);}///////////////////////////////////////////////////////////////////////////////// This function does any needed initialization on the rendering context.// This is the first opportunity to do any OpenGL related tasks.voidSetupRC(){// Blue backgroundglClearColor(0.0f,0.0f,1.0f,1.0f);shaderManager.InitializeStockShaders();// Load up a triangleGLfloat vVerts[]{-0.5f,0.0f,0.0f,0.5f,0.0f,0.0f,0.0f,0.5f,0.0f};triangleBatch.Begin(GL_TRIANGLES,3);GLfloat*pVertsvVerts;// 明确声明为 GLfloat*triangleBatch.CopyVertexData3f(vVerts);//static_castGLfloat*(vVerts)triangleBatch.End();}///////////////////////////////////////////////////////////////////////////////// Called to draw scenevoidRenderScene(void){// Clear the window with current clearing colorglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);GLfloat vRed[]{1.0f,0.0f,0.0f,1.0f};shaderManager.UseStockShader(GLT_SHADER_IDENTITY,vRed);triangleBatch.Draw();// Perform the buffer swap to display the back bufferglutSwapBuffers();}///////////////////////////////////////////////////////////////////////////////// Main entry point for GLUT based programsintmain(intargc,char*argv[]){gltSetWorkingDirectory(argv[0]);glutInit(argc,argv);glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGBA|GLUT_DEPTH|GLUT_STENCIL);glutInitWindowSize(800,600);glutCreateWindow(Triangle);glutReshapeFunc(ChangeSize);glutDisplayFunc(RenderScene);GLenum errglewInit();if(GLEW_OK!err){fprintf(stderr,GLEW Error : % s\n,glewGetErrorString(err));return1;}SetupRC();glutMainLoop();return0;}效果说明环境配置没有问题分享OpenGL资料分享链接:https://pan.baidu.com/s/1L0htRDmiGLnxIPBXkS_mWQ 提取码: 322s