* Fractional frames support has been changed to use a new var, scene->r.subframe. This is a 0.0-1.0 float representing a subframe interval, used in generating a final float frame number to evaluate animation system etc. * Changed frame_to_float() and some instances of bsystem_time() into a convenience function: float BKE_curframe(scene) which retrieves the floating point current frame, after subframe and frame length corrections. * Removed blur_offs and field_offs globals. These are now stored in render, used to generate a scene->r.subframe before render database processing.