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Indirect specular\glossy with alpha

Posted: Sat Jan 11, 2020 10:17 pm
by Rivental1
Hello. Is it possible to get indirect glossy (or any other pass) with alpha? In cycles no. And it is strange for me, after usage v-ray , corona and physical render from cinema 4d where each pass it is image with transperent background. It is very usefull for compositing.

Re: Indirect specular\glossy with alpha

Posted: Sun Jan 12, 2020 12:38 am
by B.Y.O.B.
Can't you just use the output of the Alpha AOV in compositing?
Since an alpha channel needs memory, it would increase the memory usage a lot to add an alpha channel to each AOV.
But maybe I misunderstand what you mean.

Re: Indirect specular\glossy with alpha

Posted: Sun Jan 19, 2020 10:05 am
by Rivental1
Thanks!
Well, now it looks like this:
Glossy.jpg
So, how to remove black area and leave only glossy? I tried to add diffren keyers in compositor, but somehow they do not work.

Re: Indirect specular\glossy with alpha

Posted: Tue Jan 21, 2020 7:22 am
by Egert_Kanep
No need to key, you could pull luminance key if really wanted. But aov's are supposed to be added together. Perhaps you need something else than indirect glossy