cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   M2281
   Member

   I have been researching this for a couple of days and have a few Questions.

   From what I see in the speed tests, atlas offers is best, but what Image format should we use, PNG8,PNG24 (photoshop export) or PVR at double the size with 0.5 scaling?

   Now I understand that regardless of the PNG format (8 or 24) it's just compression and they will both consume the same memory, unless I change the image format in cocos. But I could sure use some upfront guidance, to give our artist.

   For performance in a full color game, with alpha channels, what format are you using, anyone going the PVR route, BTW I don't see PVR mentioned in the perf tests on the wiki, but in my research it looks like it would be wicked fast on the graphics card. Is PVR really faster, because it's a pain to do?

   Any guidance here is greatly appreciated.

   Posted 2 years ago #
2. 

   xStoryTeller
   Member

   The best practice guide has some pointers on this : http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:best_practices

   "When possible, try to use 4-bit or 16-bit textures
   16-bit textures for PNG/GIF/BMP/TIFF images"

   "4-bit or 2-bit textures: Try to use PVRTC textures."

   From my understanding PVR images are faster, but do not look as good. I'm using png images myself.

   Posted 2 years ago #
3. 

   riq
   Key Master

   @m2281:
   the performance tests DO test the PVRTC textures:
   http://www.cocos2d-iphone.org/wiki/doku.php/perf_test:0_8_2

   Posted 2 years ago #

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