Hi there, I am looking to improve performance of my OpenGL engine (for games), and something that has come up a few times is texture compression, the problem is when it 'comes up' there only seems to be vague details - so I spent some time tonight trying to get to the bottom of it, and failed. So I hoped someone here might know more specifically:
What is the best texture compression format to use for Android? It appears to me that this varies per device, with the main (only?) two being ATITC and PVRTC. I am able to dig up reasonable details on PVRTC (as it is used on iPhone), but as of yet I am yet to find out exactly how to create an ATITC texture and load it on Android (I've been lead towards 'The Compressonator' tool from ATI/AMD, but there is no 'ATITC' compression option). The method I have seen mentioned is some form of palletised textures, does anyone know if this is a feature supported on all Android implementations (guaranteed by the OpenGL:ES 1.0 spec) or once again, or just supported on certain devices? I have been trying to keep things simple by having one package for my entire game, and have tried to keep it under 10 MB (which is hard, as it is a rather large game), but if in order to get best performance/ lowest memory foot print, I need to store the textures in multiple formats, I think I am going to be out of luck, and instead will need to investigate having a downloader built in to the game, to download a texture pack suitable for the device (which to me doesn't feel like a nice setup). Am I going to end up needing separate texture files, audio files, native libs, higher/lower resolution files, to support a good chunk of platforms? So I guess in short I am hoping someone might be able to tell me what compression method(s) are best to support, whether multiple methods should be supported (ideally), and what sort of performance/memory win can be had from implementing them. Finally some source code/links to tools to do all this would be handy. Can anyone help? Has anyone actually managed to do any of this? Steve -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
