[Bf-committers] Problems with premultiplied alpha channel in 8 bit images

gespertino at gmail.com gespertino at gmail.com
Wed Feb 9 22:53:17 CET 2011

> Troy mentioned this to me a bit earlier but I didn't have a chance to
> look into it deeply yet. One thing that comes to mind though, is that
> does this only happen with PNG files? or TIFFs as well?

It also happens when the premulled output of the compositor is used as
a scene strip in Blender's VSE, so I guess it isn't related to PNG
files only.
I also tried with 8-bit tiff files with the same result.

Oh, I just noticed that I sent the same link in the previous message
saying it was a test where I tried to reproduce the bug with the
gamma-corrected alpha. Sorry!
The right link for that test is:

P.s.: sorry for the previous mail without subject. Courtesy of gmail +
list in digest mode :(

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