Hi everyone, i''m currently working on skeletal animation and looking around i have seen a lot of tutorial using thier own matrix multiplication, why ? isn''t more easyer to perform a
translation and a multiplication using opengl commands ?
is there a speed issue or what ? can anyone tell me ?
not all cards support hardware matrix ops, meaning they use software which are damn slow. this is why a lot of routines use their own matrix functions which can be optimized in assembly. hell, even unoptimized matrix ops in software are better then OGL''s software ones .