Re: [css-compositing] SVG transforms and isolation

On Thu, Jun 27, 2013 at 9:39 PM, Dirk Schulze <dschulze@adobe.com> wrote:

> When a transform setting creates a 3D
> Context, the transform would still need to cause isolation.
>

I thought a bit more about this.
Yes, if a transform is a 3d transform and it's 'transform-style' is 'flat',
it should cause isolation. What is happening with filters today? (I know
opacity is acting weird here)


>
> On Jun 27, 2013, at 9:24 PM, "Nikos Andronikos" <
> nikos.andronikos@cisra.canon.com.au> wrote:
>
> > On 28/06/2013 1:59 PM, Rik Cabanier wrote:
> >> All,
> >>
> >> currently transforms are listed as a property that causes isolation [1].
> >> After talking this over with developers on blink and WebKit, I would
> like to drop that requirement and have them NOT cause isolation. Instead,
> an element with a transform should still allow access to its backdrop.
> >>
> >> With the current code in WK and blink, we would have to go out of our
> way to implement the currently specified behavior. Not only will it slow
> down rendering, it will also increase memory since we'd have to create an
> extra intermediate buffer.
> >
> > Heh, that's good news. Transforms causing isolation in SVG would have
> sucked.
> >
> >> In addition, since SVG uses transforms all the time, blending would
> become almost impossible to use.
> >>
> >> Can I make that change to the spec?
> >
> > I support this change.
> >
> > Cheers,
> > Nikos
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