A fast, easy to use, free, and community supported 2D game engine
Right now I'm using the default fire.png image for my particles. Would performance be boosted if I added this image to an atlas (that I use for my atlassprites)? If that is the case, how do I get the actual texture from the image atlas?
Currently the example do it like this:
self.texture = [[TextureMgr sharedTextureMgr] addImage: @"fire.png"];
How would you get a specific part from image atlas?
No, you wouldn't get a performance increase there unless you modified the atlas system to accept particle systems and modified the particle system to use atlas information. Not worth the trouble for the small increase it *might* make.
Sorry to resurrect an old post, but I have this question as well. From my experience, texture changes in OpenGL are fairly expensive, so it would be nice if there was an option to use a texture atlas to get the texture used for the particle system. Any objections to this?
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