Clip alpha type, what is it for?

[0x80]

Just wondering. I can't seem to find this in the manual.

Straight or premultiplied... when to use what?

[Joris]

It depends on whether you created your source content with straight or premultiplied alpha.

In most cases, you're probably using premult.

http://provideocoalition.com/ryoung/sto ... s-straight

[Joris]

Actually, this is probably a better link: http://www.cgdirector.com/quick-tip-str ... ied-alpha/

[0x80]

Yes that last link made it clear for me, thanks!