Alpha info missing at reflections

[Micha]

Hello,

I use Vray for Rhino and run in the issue, that the alpha channel dosn't show reflected objects. I have the feeling, that this could be a Vray core issue, so I ask here befor I post it to the plugin team. Maybe it's not a bug, but caused by a missing option at VfR.

I tried to render persons and objects for a composite image - attached a basic example. Shouldn't the calculation ray of the alpha go from the camera to the ground and than particulary reflected to the man?

Regards,
Micha

[vlado]

There is no easy way to implement this (and it will not be correct either). You will need to render a separate pass to get a mask for the reflections only.

Best regards,
Vlado

[Micha]

OK, it's not a bug, it's a standard limit. So, it's something for the wishlist - reflection of alpha channels.

I will try to find a manual workflow, like assign an emitter material (to the man), turn off GI/lights and render again.

Thanks,
Micha