Add a comment about the evaluation order in VectorShear.

This commit is contained in:
Bill Currie 2012-05-10 11:40:29 +09:00
parent de131c18ad
commit 1473dbd526

View file

@ -113,6 +113,9 @@ extern const vec_t *const quat_origin;
The reason for this particular scheme is that is how Mat4Decompose
calculates the shear from a matrix.
\note The order of calculations is important for when b and c refer to
the same vector.
*/
#define VectorShear(a,b,c) \
do { \