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Message from discussion Retina display, blurry rendering
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Juriy Zaytsev  
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 More options Apr 8 2012, 9:21 am
From: Juriy Zaytsev <kan...@gmail.com>
Date: Sun, 8 Apr 2012 15:21:07 +0200
Local: Sun, Apr 8 2012 9:21 am
Subject: Re: Retina display, blurry rendering
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On Fri, Apr 6, 2012 at 6:34 PM, tpneumat <jer...@dilltree.com> wrote:
> Wondering if there is some way to get a more crisp result with Fabric
> on Apple Retina device.

> See the orange bar with horiz intersecting lines-- appearance is out
> blurry.

> http://dl.dropbox.com/u/848795/dev/blurry-canvas.png

> This is typical of an image that is rendered 1 to 1 pixel ratio to
> size.  For Retina, we must build @2X images.  Seems we should be able
> to accomplish this with Fabric as well?

> Thanks,

> Jeremy

Is that orange line an image? If it is, I think it would make sense to make
it `fabric.Line` instead (so vector instead of raster).

As far as crisper images... does loading higher-resolution images on canvas
help? You can also try scaling image down, but that will likely result in
some quality loss. When it comes to drawing images on canvas, we're pretty
much relying on engine's canvas implementation and the way it renders them.

--
kangax


 
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