mat< 3, 2, float, lowp > lowp_mat3x2
3 columns of 2 components matrix of low qualifier floating-point numbers.
mat< 3, 2, float, highp > highp_mat3x2
3 columns of 2 components matrix of high qualifier floating-point numbers.
mat< 3, 2, float, mediump > mediump_mat3x2
3 columns of 2 components matrix of medium qualifier floating-point numbers.