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jPCT-AE - a 3d engine for Android => Support => Topic started by: kiffa on March 06, 2014, 12:30:45 pm

Title: Should I use etc1 or Texture.defaultTo4bpp(true)
Post by: kiffa on March 06, 2014, 12:30:45 pm

My purpose is for reduce memory usage\texture bandwith.

Which one is better?(for performance\memory usage\generation time\visual quality\compatibility and so on). - Assume the texture doesn't have alpha.

Title: Re: Should I use etc1 or Texture.defaultTo4bpp(true)
Post by: EgonOlsen on March 06, 2014, 08:38:57 pm

ETC1 usually provides the better image quality but it requires more time at startup. You can fight this by using http://www.jpct.net/jpct-ae/doc/com/threed/jpct/Config.html#cacheCompressedTextures (http://www.jpct.net/jpct-ae/doc/com/threed/jpct/Config.html#cacheCompressedTextures). Memory wise, it's the same as 16bit textures and so is performance (at least i have never noticed any difference). Compatibility is slightly lower than 16bit textures, because in theory, not all devices support ETC1. However, i never came across one that didn't.