VrayAmbientLight with VrayDirt -- fade by distance?

[davision]

I have a VrayAmbientLight and I'd like it to fade based on distance. I don't know if that's possible, but that's why I'm asking.

I have a VrayDirt map applied to the light and I thought I could mask the effect of the dirt map using a VrayDistanceTex which uses a reference object, but it doesn't seem to work.

Anyone know of a way to do make the light stop affecting objects after a certain distance away (from either the light helper itself or some chosen object)?

[vlado]

You could probably use a Falloff map in distance blend mode or something...

Best regards,
Vlado

[davision]

Thanks Vlado. That works perfectly. Makes more sense than using VrayDistanceTex I guess.