animation rendering with transparant (alpha chanel) BG?

#1
animation rendering with transparant (alpha chanel) BG?

Hi How do i render (and safe) a animation with transparanet background in order to put another animated BG behind the Cheetah animantion?
 

frank beckmann

Well-known member
#2
Set Camera Background Color to 0% opacity, save uncompressed; note that QuickTime will display it as black. In your compositor.app it should work fine.

Cheers
Frank
 
#4
problem: I render a single frame with an alpha chanel perfectly, but when I render a clip, the settings change to no alpha. I can wattch it switch when I start the render. Anyone know why this might be happening?
-thanks!
 
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