exclude objects only in alpha channel render

exclude objects only in alpha channel render#367904

By wimver - Fri May 17, 2013 11:21 am

- Fri May 17, 2013 11:21 am #367904

Hi,

is there a way to exclude some objects from the alpha channel but include them for the render channel without having to render twice (which I do now)?

the reason is, I have glass objects, which need the refraction from the background, but I don't want the background rendered, so I want an alpha channel that excludes this background.

thanks
Wim

Re: exclude objects only in alpha channel render#367908

By astanelle - Fri May 17, 2013 1:44 pm

- Fri May 17, 2013 1:44 pm #367908

Hej wim.

i guess " hidden from camera" ( maxwell properties ) should work - just let the the "hidden from Refl/Refr unchecked.

best regards.

Re: exclude objects only in alpha channel render#367909

By wimver - Fri May 17, 2013 2:30 pm

- Fri May 17, 2013 2:30 pm #367909

hej Astanelle,

I tried that, for some reason, it did not work (months ago), so I did the two separate render passes since then, and now it does while you pointed at it again. so many thanks!

rgds
wim