I think when you get to rending and composting, the multithread issue gets a little bit different and possible to distribute a bit. It's at the 'Model Tree' la

I think when you get to rending and composting, the multithread issue gets a little bit different and possible to distribute a bit. It's at the 'Model Tree' layer that the UI dev 'interacts with' directly that single thread is often enforced. Multithread seems to only be reasonably possible when you have 'control' of everything and a careful approach, and when the situation calls for it.