mat3_mulv: function behaviour to match with mat4
Using mat3_mulv with the same input/output vector creates undesired results.
Respective mat4_mulv function provides temporary vec3 'res'.
Updated this function to match behaviour of mat4.
@@ -228,9 +228,11 @@ glm_mat3_transpose(mat3 m) {
CGLM_INLINE
void
glm_mat3_mulv(mat3 m, vec3 v, vec3 dest) {
- dest[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2];
- dest[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2];
- dest[2] = m[0][2] * v[0] + m[1][2] * v[1] + m[2][2] * v[2];
+ vec3 res;
+ res[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2];
+ res[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2];
+ res[2] = m[0][2] * v[0] + m[1][2] * v[1] + m[2][2] * v[2];
+ glm_vec3_copy(res, dest);
}
/*!
