Re: CALayer renderInContext: performance
Re: CALayer renderInContext: performance
- Subject: Re: CALayer renderInContext: performance
- From: Gideon King <email@hidden>
- Date: Thu, 4 Nov 2010 14:54:05 +1000
I haven't done any testing on performance, but are you using the "opaque" property of CALayer? Does that speed it up at all?
On 04/11/2010, at 2:36 PM, Seth Willits wrote:
>
> renderInContext: can be reeeeally slow (2 seconds to draw a tree into a context). It seems that every CALayer is rendered using a Quartz transparency layer, and I know they're slow from past experience. I'm basically just firing off this email to ask if there's a method to make it a lot faster, or something else I could be doing. Everything that's being drawn (about 80 layers), was previously drawn using Quartz very quickly, so I'm hoping there's some way to force renderInContext: to ditch transparency layers or something.
>
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