Re: [css-compositing] SVG transforms and isolation

Why would that be? Blending can still happen on an element that is
transformed in 3d space. (The same logic that does the alpha compositing
can be extended to do blending + compositing)

However, blending should force 3d transforms to turn their
'transform-style' to 'flat' just like filters. This means that children of
an element with blending must live in the viewport that's established by
that element.

Rik

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.
>
> Dirk
>
> Sent from my iPhone
>
> 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
> > The information contained in this email message and any attachments may
> be confidential and may also be the subject to legal professional
> privilege. If you are not the intended recipient, any use, interference
> with, disclosure or copying of this material is unauthorised and
> prohibited. If you have received this email in error, please immediately
> advise the sender by return email and delete the information from your
> system.
>
>