The upper-left 3x3 of any matrix with those fields, as a Matrix3.
m := make_translation_matrix4(xyz(1, 2, 3));
assert(make_matrix3(m) == Matrix3_Identity);make_matrix3 :: (m: $T/interface AnyMatrix3) -> Matrix3The upper-left 3x3 part of m.
Parameters
- m: $T/interface AnyMatrix3
- the matrix to copy from.