Compositing trick, difficult to explain

araneldon

Would it be possible to construct a shader such that when applied to a plane it will cause everything behind it to not render, and the plane itself would also be invisible?

WendyLuvsCatz

sounds like a shadowcatcher function of some sort, I think I could do this in carrara not sure of studio
basally your plane needs to match your background globally in texture or absence of texture

Kerya

Something like pwCatch?
http://www.daz3d.com/pwcatch

Edited to add: yes, I think?
http://www.daz3d.com/forums/discussion/30173/

araneldon

If it also works when there is no backdrop, then yes.

Thank you for replies :)

millighost

araneldon said:

Would it be possible to construct a shader such that when applied to a plane it will cause everything behind it to not render, and the plane itself would also be invisible?

Sounds like you want a so-called "holdout" material for what you would need a bit more than a mere shader. In that case you might want to try that one:

https://sites.google.com/site/millighostmix/home/holdout_matte

araneldon

Exactly that. Thank you very much :)