Green patches in render

[crash_vegas]

greetings. I'm having some really difficult rendering problems. Every time I render with production quality, i always get patches of green glow on my objects and on my character. Does anyone know why this happens? There are three lights in the scene, a spotlight with fog, an ambient light and an area light. I've played around with the lighting and materials, but i'm still getting this mysterious green patch. Is this a bug? HELP!!!!

[gmask]

It his hard to say what the problem is but most likely it is user error rather than a bug. It sounds like you have a glow enabled but without seeing the image it is hard to say. Can you post the image?

[crash_vegas]

thanks for trying to help gmask. I just stumbled on the problem. It had to do with the raytracing. Apparently the reflectivity attribute was the culprit.

[joojaa]

Yes raytrace on layered materials is a heap of problems!

[deke-kincaid]

I thought this was a bug in 4.0 that was fixed in 4.01 or 4.02

[joojaa]

Yes but it resurfaced later... and its not so much about a butg than a feature... Anyway i ususaly do this anyway becuse it lets me gamma correct the reflection (all yee heed note this makes reflections more in line with how they somettimes are in bright places). I do a 100% reflective material without specular highlights and put a +- avg node and sum it on top of my other material and feed this then to a surface shader. But remeber to meke sure the other material doesent reflect anything (turn raytracing limits to 0).