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Re: [whatwg] CSS Filter Effects for Canvas 2D Context

From: Ashley Gullen <ashley@scirra.com>
Date: Sat, 28 Jul 2012 21:58:13 +0100
Message-ID: <CAABs73gWfBxcnoQscGKFL-fCKvba-TmgQsrN1-EXppfmh_2fGw@mail.gmail.com>
To: Rik Cabanier <cabanier@gmail.com>
Cc: "whatwg@whatwg.org" <whatwg@whatwg.org>, David Geary <david.mark.geary@gmail.com>, "Tab Atkins Jr." <jackalmage@gmail.com>, Chris Marrin <cmarrin@apple.com>, Ronald Jett <rjett@level-studios.com>
>
> On another note, wouldn't it be nice if you could add a grouping operator
> such as this:
>
> gamecanvascontext.filter = '...';
> gamecanvascontext.beginGroup();
> ... // lots of drawing operators
> gamecanvascontext.endGroup();
>
>  and have everything in that group at endGroup time?
>

 Do you mean applying an effect to multiple draw operations?  Usually that
is achieved with rendering to an offscreen canvas, then rendering that with
the effect.

Ashley
Received on Saturday, 28 July 2012 20:58:44 GMT

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