I am looking to build a demo of simple photo gallery app for the iPad.
Thumbnails and click for larger image.
If I have 45 images at 1024x768 or larger for iPad3 is it better to use Textures or load each image separately?
Are there any memory considerations I should keep in mind?
Use texture atlas for thumbnails, and load/unload images for zoom.
Oh I already answered you on Lee's site but here it is copypasted again if anyone else is interested:
It depends on the exact implementation but this is basically what I would do.
1. Generate a single atlas from the thumbnails.
2. Allocate an empty texture large enough to hold any one of the zoomed images.
3. If you click a thumbail you don’t need to dispose/create anything just upload the zoomed image to the free allocated texture already on GPU.
This way you can render it with 2 draw calls all the time, no allocation or disposing. You may end up with more atlases if there are a lot of thumbnails, or if you have paging dynamically reupload new thumbnails to the atlas etc. But you get the idea.
This is my first demo with Starling. Thanks for the posts. I will give this a shot and post back my results.
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