Re: [css-masking] new value for 'mask-clip'

On Thu, Oct 25, 2012 at 11:04 AM, Dirk Schulze <dschulze@adobe.com> wrote:

> On Oct 24, 2012, at 2:47 PM, "Robert O'Callahan" <robert@ocallahan.org>
> wrote:
>
> On Thu, Oct 25, 2012 at 10:40 AM, Dirk Schulze <dschulze@adobe.com> wrote:
>
>> Relative values on SVG for example:
>>
>> <svg width="100%" height="100%">
>> ...
>>
>> Which is very common on SVG, since these are the default values.
>>
>
> Aren't those resolved relative to the background painting area, not the
> background clip area?
>
> That would make sense for backgrounds, since a background can't overflow.
> It would not be the desired way for masking, since it means you always clip
> overflowing content with an SVG file. Something that I would like to avoid.
>

That's only a problem if the <svg> itself is used as a mask, right? Which I
don't think you can even do. A <mask> element, used as a mask, would not be
clipped by any clipping on its <svg> ancestor.

Maybe I'm just confused. It would help if you gave a concrete example.

Rob
-- 
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