Re: [css-compositing] some proposals

On Sun, Nov 20, 2011 at 4:29 PM, Cyril Concolato <
Cyril.Concolato@cisra.canon.com.au> wrote:

>  Hi Rik, Alex,
>
>
>
> Just to make sure I understand the proposal. What would happen if you
> apply the ‘dst-atop’ compositing operator with partially transparent
> objects together with say a ‘plus’ blending operator. I understand that the
> ‘plus’ would only apply on the intersection but I’m not sure about the
> maths. Would you compose the equations, in which order? It doesn’t look
> like you can consider that the result of the (alpha-)compositing becomes
> the source (or destination) of the (color-compositing) blending ,does it?
>

No, blending/color-compositing happens first, followed by alpha-compositing.

Rik