Does anyone know how to get fog to work in BPR render like it did in previous versions?
This is a known issue. I believe it will need to be addressed in an update. For now you can work around it using a depth map in Photoshop to control where the effect is applied.
I use it for anti alias depth pass in video turntables and custom DOF on large scenes. Its was very handy feature. The best render anti aliasing shrinks the objects and is no good.
Just to note for others: When using BPR filters for this. Depth sliders and color filter works for a custom still depth pass. But when rendered into a turntable it starts to flicker really badly.