lundi 27 octobre 2014

OpenGL Projection, View and World matrices


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Recently I started to learn OpenGL (before that I was using DirectX 9). I have question about OpenGL projection, view and model matrices. In DirectX 9 i can easily manipulate matrix content and then apply it by using SetTransform function.


But now when I saw in MSDN OpenGL glLoadMatrixf function, it only changes current matrix which I can change by glMatrixMode function.


This function gets one argument with 3 options: GL_MODELVIEW, GL_PROJECTION and GL_TEXTURE. But that's the problem. How can I modify world matrix?


In DirectX 9 I can use SetTransform and one of state types: D3DTS_WORLD (macro), D3DTS_VIEW and D3DTS_PROJECTION and set matrices for them.


Thanks in advance!



asked 3 mins ago







OpenGL Projection, View and World matrices

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