A fast, easy to use, free, and community supported 2D game engine
Neantis
Member
Hi,
I've searched for information about this but found nothing and that's not clear in my mind.
Does the use of 2 AtlasSpritesManager with 256x256 different SpriteSheet is the same that 1 AtlasSpriteManager with on 512x512 SpriteSheet ?
I think the needed memory is the same but in term of drawing performance ? (Is that better to have one big SpriteSheet in one AtlasSpritesManager or I can have as many AtlasSpritesManager as I want)
Thanks
Hi
First 512x512 is 4 times bigger than 256x256, so you'd want to compare 4 small managers with big one. There are 2 benefits, I am aware of, if you use 1 big manager:
1) less loading time, because you load only 1 file instead of 4
2) less OpenGL calls, your drawings are done in one OpenGL call if you use big manager
Memory usage should be roughly the same I'd of thought.
But every new AtlasSpritesManager you add will require a new set of draw/transform calls, so it might be slightly slower. Depends how many you add, if its only the 2, I wouldn't have thought it'd make that much (noticeable) difference. If you plan to add lots, I'd try to group them into larger sprite sheets though.
edit: crmagicxxx beat me to it ; )
Steve Oldmeadow
Administrator
The other advantage of one big AtlasSpriteManager is less z ordering issues. Z ordering only works correctly within an AtlasSpriteManager so if you had two 256x256 spritesheets that you want to draw with intermixed z ordering then you should use one AtlasSpriteManager with a 256x512 spritesheet.
You must log in to post.
