I''m curious what other people use for their math libraries when programming OpenGL. I usually use the Direct 3D math functions in windows. On other platforms (i.e. linux / solaris or anything with glut) I use my own custom library coded in c++, which is no doubt horribly inefficient. Is there a cross platform vector, matrix, and quaternion math library (preferably one that is SIMD accelerated on as many platforms as possible)?

I prefer writting my own (so I know what it does), then again, I love assembly....so the effeciency is slightly increased.......Find a good assembly programmer to write you a LIB for different platforms....(Sorry...I''m stuck in x86 land on assembly I dispise ATT Syntax)...


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Cheeseball

You''ve got the GSL, or Intel''s MKL.
The Boost library has a quaternion class (and a lot of other non-math stuff). The Boost library is cross-platform.