Fix validaiton error in old AO where we were writing normals when never bound Execute procedural layers ( managed hooks ) before threaded action to set up geometry, this fixes race condition in viewattributes from hooks Previously FrameAttributes/ViewAttributes were working to pass to the rest of the pipeline merely because of a race condition and would break down in low framerates and wouldn't actually pass changed view attributes to those partitions in the correct order ( https://i.imgur.com/fW4VPVJ.mp4 ), this does it properly