On Nov 11, 2012, at 6:59 PM, Rik Cabanier <caban...@gmail.com> wrote:

> 
>   
> 
> Wouldn't it be better to add a new property to canvas for blending? At the 
> beginning, implementations are just require to use different blend modes in 
> combination with 'source-over'.
> 
> That could work too.
> There was a mailing list conversation about this a couple of months ago, and 
> people were evenly split on the subject.
> 
> The vast majority of cases will use 'source-over' in combination with 
> blending so maybe it's best to keep it simple...

It doesn't make sense to me for blend mode and composite operator to be 
separate in CSS, but combined in Canvas. Either there are valid use cases for 
specifying them separately or there are not. I cannot imagine how this could 
differ between Canvas and CSS.

Regards,
Maciej

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