Re: Drawing noise in Cocoa (preferably fast)
Re: Drawing noise in Cocoa (preferably fast)
- Subject: Re: Drawing noise in Cocoa (preferably fast)
- From: Ken Tozier <email@hidden>
- Date: Wed, 15 Jun 2011 21:24:28 -0400
Just curious, what kind of speed are you getting with the CIImage methods? I saw the usefulness of generating random images for my own purposes and polished the posted code a bit today. It was generating 100 million pixel images (10,000 x 10,000) with per-pixel randomization in about 2.2 seconds. What kinds of times are you getting for comparable images using the CIImage methods?
-Ken
On Jun 15, 2011, at 2:30 PM, Stephen Blinkhorn wrote:
> I've got the random noise part working and it easily fast enough. Its a shame there isn't a way to specify the opacity when drawing CGLayers. I'd find that useful but I imagine there is a reason for it.
>
> Stephen
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