[whatwg] [canvas] inner shadows

[Ian Hickson]

On Fri, 23 Nov 2012, Rik Cabanier wrote:
> On Fri, Nov 23, 2012 at 4:03 PM, Ian Hickson <ian at hixie.ch> wrote:
> > On Fri, 23 Nov 2012, Rik Cabanier wrote:
> > >
> > > It would still be quite complex to draw an inner shadow this way 
> > > because the blur is calculated on the inverse of the shape. A user 
> > > will need to draw to another canvas and then 'clear' it to get the 
> > > inverse.
> >
> > Turns out it's much easier than that; see my e-mail just now.
> 
> No. You don't want to see a black shadow with blurred edges. For an 
> 'inner' shadow, the shadow image sits outside the shape so you have to 
> calculate that.

I don't follow. Why would you see a black shadow?

Do you have an example of what you mean?

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
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Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'