Convert GLKMatrix4 and CATransform3D

Question

Is there a way to cast from CATransform3D to GLKMatrix4, or do I always need to manually convert them from value to value? I guess casting would be faster.

Answer 1

Something like this should work:

CATransform3D t;
GLKMatrix4 t2 = *((GLKMatrix4 *)&t);
t = *((CATransform3D *)&t2);

Assuming CATransform3d and GLKMatrix4 have the same column/row setup. (I think so)