Ambient Occlusion

[eyepiz]

Hello,

I've been trying to use ambient occlusion in post via VRayExtraTex_Map with a VRayDirt txture in render elements however my background environment is always back in the render pass.. is there a way I can get it to white?

It's noticeably faster than using GI ambient occlusion.

Thanks!

-E

[Morbid Angel]

its black because its empty (alpha) most likely. If you are using it in comp to multiply then you first need to merge your occlusion with a white bg then multiply. You can't get it solid white because of the alpha so, only other workaround is to re-render as a separate render job with env set to white.

[tashko.zashev]

Hi,

Another approach:
You can add a fully transparent dummy sphere to the scene and additionally set Matte On, Receive/Cast shadows off/ Visible to GI Off; to be sure that it will not affect the beauty pass.

[Laserschwert]

I've been trying to use ambient occlusion in post via VRayExtraTex_Map with a VRayDirt txture in render elements however my background environment is always back in the render pass.. is there a way I can get it to white?

The easiest solution is to just swap the black and white colors in the VRayDirt map and invert it in post.

[dlparisi]

The easiest solution is to just swap the black and white colors in the VRayDirt map and invert it in post.

Very smart.