Sergey Sharybin
4dc639ac99
Previously each of the objects which has armature modifier will request deformation matricies from bbones. Thing is, all those deformations are the same and do not depend on object which is being modified. What's even worse is that this calculation is not cheap. This change makes it so bbones deformation is calculated once and stored in the armature object. After this armature modifiers simply use it. With a rigs we've got here dependency graph evaluation time goes down from 0.02 sec to 0.012 sec. Possible further optimization is to make bbone deformation calculated at the time when bone is calculated. This will avoid an extra threaded loop over all bones.