dome light + hdri + matte shadow

I’m trying to light an object with an hdri using a domelight. I want the background to be white, so I applied a vrayMtlWrapper to a vRayPlane sitting under the object. Anyone know what is going on?

Max 2008
Vray 1.5 SP1

http://www.fellers.net/pub/matteNoise.max
http://www.fellers.net/pub/matteNoise.jpg

No problems here. Everything is fine. I don’t have that hdri file, replaced with DH217SX.
P.S. Build slightly above sp1. But I remember that problem

http://www.chaosgroup.com/forums/vbulletin/showthread.php?t=40153

P.P.S. My 800-th :smile:

ticking ‘affect alpha’ in the matte properties seemed to fix it for me - thanks!