CoreImage - problems with larger images
CoreImage - problems with larger images
- Subject: CoreImage - problems with larger images
- From: Kenny Leung <email@hidden>
- Date: Wed, 19 Jul 2006 09:52:16 -0700
- Resent-date: Wed, 19 Jul 2006 11:32:33 -0700
- Resent-from: Kenny Leung <email@hidden>
- Resent-message-id: <email@hidden>
- Resent-to: Apple Cocoa List <email@hidden>
Hi All.
I've been working on a morphing filter for CoreImage, and it seems to
work great on smaller images, but breaks down with any image larger
than 10x7. Since there is much I don't understand about CoreImage and
graphics hardware, I freely admit that it could be my problem, but
then again, I don't see how. I'm thinking that this might be a bug
with CoreImage when some limit is reached in texture sizes.
Here is an example of the results on a 10x7 image:
http://www.hexdreams.com/temp/Morph10x7.jpg
Here is an example of a 1280x960 image:
http://www.hexdreams.com/temp/Morph12x10.jpg
Note how the right half of the image is hosed. The blank hole on the
left half is caused by sampling nothing on the right half.
Any help from the more experienced is greatly appreciated. A sample
program is available.
Thanks!
-Kenny
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