render arnold aov through glass material

[ehren.addis]

How do you do this?  Seen only a couple things related to Maya.  I have a phone screen that I want to render an aov for. It's under a piece of glass that prevents it from rendering.  The arnold standard shader has a transmit aov feature, but I'm not sure how to set that up with max.  This will allow me to comp sreens in post.  I was able to do this with redshift, but I'm weening myself off that renderer.  Thanks!

[ehren.addis]

How do you do this?  Seen only a couple things related to Maya.  I have a phone screen that I want to render an aov for. It's under a piece of glass that prevents it from rendering.  The arnold standard shader has a transmit aov feature, but I'm not sure how to set that up with max.  This will allow me to comp sreens in post.  I was able to do this with redshift, but I'm weening myself off that renderer.  Thanks!

[CiroCardoso3v]

I believe the solution is on doing that in comp. I usually rebuild the beauty in Nuke or Fusion, and for that situation I would create a mask (cryptomatte) for that screen, add the phone screen and then add that bit on top. 

What you can do with the Arnold Standard Surface is using the Transmit AOVs option. 

https://docs.arnoldrenderer.com/display/A5AF3DSUG/Transmission

Maybe a screenshot would help understand better what you are trying to do.

[CiroCardoso3v]

I believe the solution is on doing that in comp. I usually rebuild the beauty in Nuke or Fusion, and for that situation I would create a mask (cryptomatte) for that screen, add the phone screen and then add that bit on top. 

What you can do with the Arnold Standard Surface is using the Transmit AOVs option. 

https://docs.arnoldrenderer.com/display/A5AF3DSUG/Transmission

Maybe a screenshot would help understand better what you are trying to do.

[ehren.addis]

That was my effort, but couldn't get it to work.  Perhaps because my background is not transparent.  Love cryptomattes, but also love GPU rendering.  Someday that will work.  thanks!

[ehren.addis]

That was my effort, but couldn't get it to work.  Perhaps because my background is not transparent.  Love cryptomattes, but also love GPU rendering.  Someday that will work.  thanks!

[CiroCardoso3v]

Yeah, if the background isn't transparent then you don't get an alpha. Can you point me to that Redshift option, so I can have a look?

[CiroCardoso3v]

Yeah, if the background isn't transparent then you don't get an alpha. Can you point me to that Redshift option, so I can have a look?