Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the current pose.
@param outX The horizontal distance between the skeleton origin and the left side of the AABB.
@param outY The vertical distance between the skeleton origin and the bottom side of the AABB.
@param outWidth The width of the AABB
@param outHeight The height of the AABB.
@param outVertexBuffer Reference to hold a Vector of floats. This method will assign it with new floats as needed.
Attachments from the new skin are attached if the corresponding attachment from the old skin was attached.
If there was no old skin, each slot's setup mode attachment is attached from the new skin.
After changing the skin, the visible attachments can be reset to those attached in the setup pose by calling
See Skeleton::setSlotsToSetupPose()
Also, often AnimationState::apply(Skeleton&) is called before the next time the
skeleton is rendered to allow any attachment keys in the current animation(s) to hide or show attachments from the new skin.
@param skinName May be NULL.
