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Posted 31 October 2012 - 11:36 AM
Posted 31 October 2012 - 02:40 PM
Yes and by large amounts as you have found out, as there is a lot of management and extra work that is done when issuing that call. If you are building an atlas dynamically the best way is using an FBO or depending on size using NEON intrinsics on the CPU size.
Is glTexImage faster than glTexSubImage?
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