object with color "invisible"

tmohr · Post by **tmohr** » Mon Sep 24, 2012 11:45 pm

Hi,

i want to place an object A of color / material "invisible" in front of other objects and in the final render i'd like to see alpha=0 at the pixels that show object A.

So object A is in front of other objects that have normal color. A is marked as invisible but you can't see through but if you render a PNG you see a hole in the PNG where A was visible.

I hope it is clear what i want to achieve.

I saw some hints to check the "Sky" checkbox but that did not help.

Thanks for any hints,
Torsten.

CoDEmanX · Post by **CoDEmanX** » Tue Sep 25, 2012 1:19 pm

Use Transparency, Mask Alpha 0.0 for the invisible material:

http://www.pasteall.org/pic/show.php?id=38131

tmohr · Post by **tmohr** » Tue Sep 25, 2012 10:54 pm

CoDEmanX wrote:Use Transparency, Mask Alpha 0.0 for the invisible material:

http://www.pasteall.org/pic/show.php?id=38131

Great, exactly what i wanted.

Best regards,
Torsten.