VrayBackground appear totally Black

[cyrylmaison]

Hello,

 

I have a little problem I enable a VrayHdri in my environnement and effects and I add a VrayBackground in my renderpass, and I set my glass material with affect channels parameter to All channel for the refraction and the reflection but my renderpass is totally black, my background don"t appear in my pass.

 

My second problem is my renderpass for my reflection is very noisy at the level of the glass material.

 

 

I use 3dsmax 2016 with vray 3.4.0 so i don't use the local subdiv.

 

 

Thanks all and sorry for my english :s