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c++ Programming Glossary: gluintHow to render offscreen on OpenGL? [duplicate] http://stackoverflow.com/questions/12157646/how-to-render-offscreen-on-opengl or forgot some statements. Somewhere at initialization GLuint fbo render_buf glGenFramebuffers 1 fbo glGenRenderbuffers 1.. The read pixels code would become something like this Init GLuint pbo glGenBuffers 1 pbo glBindBuffer GL_PIXEL_PACK_BUFFER pbo..
Easy framework for OpenGL Shaders in C/C++ http://stackoverflow.com/questions/2795044/easy-framework-for-opengl-shaders-in-c-c class I find handy for this purpose class shader_prog GLuint vertex_shader fragment_shader prog template int N GLuint compile.. GLuint vertex_shader fragment_shader prog template int N GLuint compile GLuint type char const source N GLuint shader glCreateShader.. fragment_shader prog template int N GLuint compile GLuint type char const source N GLuint shader glCreateShader type glShaderSource..
Calculating normals in a triangle mesh http://stackoverflow.com/questions/6656358/calculating-normals-in-a-triangle-mesh vertices GLfloat x GLfloat y GLfloat z vertices 10000 GLuint indices 60000 99..9999 98..9998 ........ 01..9901 00..9900 void.. vertices count .y 0 vertices count .z z count count 0 for GLuint a 0 a 99 a for GLuint b 0 b 99 b GLuint v1 a 100 b indices.. count .z z count count 0 for GLuint a 0 a 99 a for GLuint b 0 b 99 b GLuint v1 a 100 b indices count v1 count GLuint..
Image scaling (KeepAspectRatioByExpanding) through OpenGL http://stackoverflow.com/questions/9011108/image-scaling-keepaspectratiobyexpanding-through-opengl Setting up texture and transfering data to the GPU static GLuint texture 0 if texture 0 context deleteTexture texture glPixelStorei.. Setting up texture and transfering data to the GPU static GLuint texture 0 if texture 0 context deleteTexture texture glPixelStorei..
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