How to get Ambient Occlusion pass on GPU?

[sean_brown]

Im trying to get an ambient occlusion pass on GPU. I tried the Ex_Tex render element and VrayDirt method but i get a white layer. It works in CPU mode though. So what other method would work on GPU? Im trying to just darken the shadows. Shadow Bias doesnt really work.

[hermit.crab]

Try unticking the "As inclusive set" in the "Affected By" set (in the VRayDirt).

EDIT: It's already logged (internal bug-tracker id: VGPU-5718 ).