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OpenGL Equivalent to D3DReflect for OpenGL

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OpenGL is built around the concept of program reflection. There are a bunch of functions, some of them are:

glGetUniformLocation(), glGetUniformBlockIndex(), glGetFragDataLocation(), glGetFragDataIndex(), glGetAttribLocation(), glGetProgramResourceIndex(), glGetProgramResourceLocation(), glGetUniform().


glGetProgram() allows you to query a program for its properties, such as number of uniforms, attributes and GS and TF properties.


Note that reflection is not done on shaders, but on linked programs.

Edited by N.I.B.

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