Re: Compositing math in SVG

Wooow, thanks Rik! :)

I have some questions:

1. Why don't people mention this when they write about blend
modes? :) I read even the Adobe PDF reference and it was also
talking about the compositing formula the way I did it.
Where can I read more about this?

2. I am confused about the second case. Does not alpha
always come from the images? It is kinda strange to think
of a blend mode with some alpha, while both images have
alpha 1.

It seems what I want always is the first case, since alpha
will always come from the images. Not sure when would
I need the second case though?

I was so excited when I saw this, I wrote this quickly, I am
going to the shop to get some coffee and chocolate and
I am getting back to try if this change will fix my problems :D