VRayLightMtl not casting with IRMap

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

Okay guys, this might be an easy answer, I did a search but didn’t come across my problem. I have an object with a pure white VRayLightMtl applied to it; if I render using QMC there’s plenty of glow on a nearby surface, enough to want to turn down the amount. If I switch to IRMap no Light is being cast by the material. What would cause this?

… Actually looking at the image a bit more, it almost seems that the QMC glow is actually just noise from the sampler… hmmm Does this sound familiar to anyone? :roll:

2

Can you show some renders, they will tell more. Thank you !
and the VRayLightMtl setup as well.

Best regards,
nikki Candelero

3

I figured out the problem, the scene is so large that no samples are being placed beind the sign with the VRayLight Material. If I turn up the samples the image gets worse due to more correct samples being placed, but the ‘glow’ starts coming into effect. :cry: