Hey when I have colour in my alpha channel, using fog, I cant get this information to save in the multichannel exr, just greyscale. If I save out single channel I get all this info
is this possile ideally without a separate image file.
I want to use the inerted alpha to multiply over backplate to apply the correct colour to the fog to the comp build.
Thanks
At this point, it is not possible to get the Color Alpha in a multichannel exr.
Ahhh great to get this implemented as it would be really handy for producing accurate beauty builds in comp.
Is there a way in maya to create an alpha via extra tex or something similar? Thus allowing us to write it into a 3 channel exr layer?
excellent! works perfectly! Is there any info on what the other alias channel numbers relate to?
The Alias can also be used to reference other render elements through their Vray Alias attribute (found in Extra Attributes rollout; not the cleaner Extra VRay Attributes rollout). Unfortunately, we don’t have an official list with all the alias corresponding values.
Here are some examples:
GI render element = 108
MaterialID = 115
Has this all changed in vray 5? i cant get the alpha with the custom color anymore
We managed to reproduce this and it seems that this is a bug(VMAYA-10090). I will write here when we have any news or progress on this one.