Any way to get light select to respect vray 2 sided material?

[joconnell]

I'd say this is a bit of a tricky one. I'm doing a scene of a park with cg trees So the 2 sided material is being used heavily. Since it's only a 2 light setup with a sun and sky I thought I'd put out a light select for each as the contrast ratio is important in the scene. The compers as you'd imagine love the light select element since they really enjoy ruining my 3d but the problem in this case is the raw version of light select doesn't include the transferred values. Makes total sense since the light select is taking the direct contribution of a light, how is the rawlighting pass able to include this data though?

Are there any sneaky tricks to restore this in nuke?

[vlado]

I would generally reconstruct the "raw" element from the "lighting" (or light select) one and the "diffuse filter" one.

Best regards,
Vlado

[joconnell]

Awesome.

It turns out if you use the light select in "diffuse" mode and divide it by the diffuse filter it contains the info from the materials we were missing in it's raw mode. Our lovely comper gets all the weird purple pixels from our 2 sided material and now if we add our light selects together we get the same result as our rawlighting element.

Hurray for things working