Hi guys, i have a displace along normals hooked into baseN of a standard core, its set to bump only, true displacement is off. Subdivisions is off on the geo and dicing is set to 0. When the buckets hit the object at grazing angles my core usage drops to 4% and the render slows down completely, even when it clears these buckets and moves on to a flat grid in the bg it never picks up again. If i take the bump off it renders in seconds.

Thing is when i send it to the farm, the flame machines finish the frame in 2 min but the render nodes go up to a couple of hours, all the while peak mem usage is around 7gb….

Anyone else seen something like this happening?


P.s. object is a scan.