Community
Arnold for Cinema 4D Forum
Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Transmission AOV Issue

6 REPLIES 6
Reply
Message 1 of 7
Anonymous
6196 Views, 6 Replies

Transmission AOV Issue

Hi guys I have a question. I´m really lost with this. I have a plastic material. But this plastic material has a roughness transmission. Like a silicone.

The thing is I need the alpha of this to work in photoshop. I need the alpha of the refraction with the roughness effect. But the alpha show me the entire object with no roughness. I´m working with Arnold 5.

I do not know which is the AOV to do this and how to use it in Photoshop.

Thanks a lot guys

Labels (4)
6 REPLIES 6
Message 2 of 7
zenop
in reply to: Anonymous

What would you want that AOV to look like? Have the alpha only where there are "perfect refractive" pixels? Comping rough refractions isn't possible (as far as my knowledge goes)

Message 3 of 7
Stephen.Blair
in reply to: Anonymous

There's currently no AOV or LPE that will give you an alpha for refraction. That's something we're looking to add soon.



// Stephen Blair
// Arnold Renderer Support
Message 4 of 7
Anonymous
in reply to: Anonymous

I will try to be more specific. I will work with 3Ds Max Vray and you will see what I need from Arnold.
I made this example in 3Ds Max and Vray:
ca1.jpg
As you can see in that image (Ca1.jpg) I made 2 boxes and one of them is a glass with roughness in this case the name in Vray is Glossiness. And when a select to see the alpha channel I see this:

ca2.jpg

Well I need the exact channel in Arnold. I can´t believe this option it doesn´t exist.

When I try to do this in Arnold I only see all white in the alpha channel with no roughness trough the box.

Thanks guys!

Message 5 of 7
Stephen.Blair
in reply to: Anonymous

Arnold 4 had a refraction opacity AOV, but there's no equivalent yet in Arnold 5.



// Stephen Blair
// Arnold Renderer Support
Message 6 of 7
Anonymous
in reply to: Anonymous

Thanks Stephen!...

Message 7 of 7
Slava_91
in reply to: Stephen.Blair

Thank you Stephen, it would be great!

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums