[whatwg] Canvas 'darker' operator

Ian Hickson ian at hixie.ch
Sun May 20 12:35:51 PDT 2007

On Sun, 20 May 2007, Mathieu HENRI wrote:
> > 
> > I've referenced the paper and dropped 'darker'.
> Please, please, pretty please, bring 'darker' back.
> Rename it 'multiply' if you want, or if like me you think this name better
> reflects the operation previously known as 'darker'.
> Here is a list of use cases for 'darker', I already applied in realtime
> animations: [...]

The reason I dropped 'darker' wasn't lack of use cases, it was lack of a 
formal definition and lack of hardware support. Can you point to a 
definition of 'darker' that is defined to the level of the Porter-Duff 
operators and has native support in the primary graphics libraries?

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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