Re: [whatwg] Grouping in canvas 2d from Ian Hickson on 2014-03-14 (public-whatwg-archive@w3.org from March 2014)

From: Ian Hickson <ian@hixie.ch>
Date: Fri, 14 Mar 2014 18:09:58 +0000 (UTC)
To: Jürg Lehni <lists@scratchdisk.com>
Cc: Justin Novosad <junov@google.com>, WHAT Working Group <whatwg@whatwg.org>, public-canvas-api@w3.org, Rik Cabanier <cabanier@gmail.com>, Brian Salomon <bsalomon@chromium.org>
Message-ID: <alpine.DEB.2.00.1403141808380.32463@ps20323.dreamhostps.com>

On Wed, 4 Dec 2013, Jürg Lehni wrote:
> 
> Implementing [layering/grouping] would help us greatly to optimize 
> aspects of Paper.js, as double buffering into separate canvases is very 
> slow and costly.

Can you elaborate on what precisely the performance bottleneck is? I was 
looking through this thread but I can't find a description of the use 
cases it addresses, so it's hard to evaluate the proposals.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

Received on Friday, 14 March 2014 18:11:04 UTC