ray trace transparency with alpha.

[bwcc]

I have asked about this in the past, but it's been a while and the EIAS rendering has been improved recently.

 

Is there any reason why ray traced transparent objects won't render with an alpha channel? I think last time the answer was that no app could do this. I know Cinema4d and Modo can.

 

thanks!

brian

[Tomas Egger]

Ola Brian,

 

Right now, EIAS cant do it directly, you need to render a ray trace pass (beauty pass) + change the Render Mode to Phong and render another pass, but this feature is in our to do list.

 

Thanks

 

Tom

[bwcc]

it doesn't really work, because the transparent areas are distorted based on the refraction - hopefully it will be in 9.1?? The alpha rendered in phong doesn't align with what should be transparent in the RT.

 

thanks

brian

[Tomas Egger]

Ola Brian!

 

This is not a simple task.. Could you make a really simple sample project to demonstrate what is not aligning?

 

Thanks

 

Tom

[bwcc]

here's an image with an explanation

 

http://www.brianwhite.cc/temp/Project_13.jpg

 

and the simple project.

 

http://www.brianwhite.cc/temp/Project.prj.zip

[Igors]

here's an image with an explanation

Thanks, thinking...

[Tomas Egger]

Ola Brian,

 

 

We've some ideas, but anyway it will be not "just alpha channel". There is "transparency" layer in EI_Layers shader, Can it be used to create "RT masks", like in attached prj? If not please tell us what's not enough.

 

Thanks

 

Tom & Igors

 

TransProject.zip