Alpha channel in JPEG's

Nevin Pratt nevin at
Sun Jan 12 15:44:06 UTC 2003

I'd like to load several JPEG's over top of each as a single picture in 
Squeak.  The first JPEG would contain no alpha channel (no transparent 
portion).  However, subsequent JPEG's would contain an alpha channel for 
the transparent portions of the picture.

It is for my wife's web site:, which is 
driven by Squeak.

In short, I want to be able to load a base picture of a doll, and then 
overlay different hair, eyes, etc. over the base picture.

Can this be done within Squeak?  Where do I start?  Anybody got any 



More information about the Squeak-dev mailing list