vray render pass are black

[giovannigio]

good morning. when i'm trying to render this scene, render passes behind the glass are black. when i take off the glass, render passes renders correctly. what should i do? glass has affect shadows option enabled too. as you can see in the first imagethe lighting pass renders black. any ideas?

 

thanks to everybody

[cg_Butler]

On your glass material make sure you have selected affect all channels in the Refraction Affect channels drop down. :-)

[giovannigio]

On your glass material make sure you have selected affect all channels in the Refraction Affect channels drop down. :-)

 

thanks a lot man! that was exactily the problem. i forgot to set all channels as u said. thank you