Reflection and Refraction "Dancing"

[ruffstuff]

I've never used the world space subdivide modifier with motion blur. I wonder if it is changing the # of verts since it's in world space. I could see that causing problems with motion blur.

I only used the subdivide modifier when I have normal problems. Like a chamfer box without a lot of subdivisions. I never realized that the lack of geometry would cause poping with Vray.

ruffstuff