On Tue, Mar 11, 2003 at 12:33:14PM -0800, Daniel Rogers wrote:
> Or, as I suggested in an earlier email, but I don't think was stated 
> very clearly, implement anti-erase as a layer mask (whether or not the 
> user can actually see the extra layer).

If you want to implement anti-erase as a layer mask, then
for antierase to be available, this layer mask (not shown to
user) has to be present all the time (if not, the
information needed for anti-erase would be lost).

But how this situation differs from separate alpha channel
-- except for storing the same data in a much more complex
way than necessary?

Or did I missed something?


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