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alesegdia/vecsfrommat.glsl

Last active November 6, 2015 19:03
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Get Backward/Up/Right vectors from mat4
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vecsfrommat.glsl
// http://roy-t.nl/index.php/2010/03/04/getting-the-left-forward-and-back-vectors-from-a-view-matrix-directly/
mat4 matrix;
vec3 right ( matrix(0,0), matrix(1,0), matrix(2,1) );
vec3 up ( matrix(0,1), matrix(1,1), matrix(2,2) );
vec3 back ( matrix(0,2), matrix(1,2), matrix(2,2) );
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