alpha from refracted material not the same

[nikand]

Minor difference in alpha output from refracted material between RT gpu and RT cpu .
I believe cpu is correct.

[Zdravko.Keremidchiev]

Both alphas seems identical on our side, can you share the scene?

[nikand]

the window had 3 layers of glass that's why it's more prominent I guess.
Made a simpel scene with a box 60x100x1xcm
And the same scene with edit poly on top to copy element twice to get 3 layers.
Also the refraction differs a lot.
I will send the scene.

[nikand]

And here is rgb layer of the 3 layer glass.
1 layer looks fine though.

[Zdravko.Keremidchiev]

Thank you for sending the scene. Both of the issues are now logged in the bug tracking system.

[Zdravko.Keremidchiev]

About the refraction mismatch: V-Ray GPU uses the min of the Max depth value in the material itself instead of the Trace depth.
We are investigating the Alpha issue.