premulti problem

any suggestions on how to get rid of these exr halos’..
3ds 2011, Vray 1.5 SP 5, AE CS3…
thanks

Looks like Anti-Aliasing artifacts
Are you using a sharpening filter???

If you’re using EXR then you have to divide by the alpha to unpremultiply it in comp, not sure how you do this in After Effects.

duhh, sometimes it’s the simplest things, in AE my preview was set to “third” thus the jagged look…