Weird performance problem with CCTextureAtlas

(3 posts) (2 voices)

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foogy
Member

I'm using 0.99.2-RC on iPad (Device).
I have only one big texture (2048x2048) in a CCTextureAtlas.

If I setDisplayFPS to draw FPS the game run at 50-60fps.
The weird thing now: if I don't setDisplayFPS, the frame rate drop radically, Instrument give me 15-20fps.

I'm trying ton pin point how drawing the FPS on the screen can make such a difference in the frame rate.
I checked out drawNumberOfQuads... can it be related to VBO?
I tried to disable CC_TEXTURE_ATLAS_USES_VBO, but I get around 25fps, so VBO is definitely the way to go, in my case at least.

Posted 1 year ago #
Nico8k
Member

Hi!, I have a similar problem. My game moves a sprite (64x64) from left to right at constant speed and it moves some choppy, the FPS counter say 60.0 all times. I'm using 0.99.0 and CCSpriteSheet and target Release. I,ve another project that do the same but no Cocos2d and moves perfect. It seems like FPS counter reads 60.0 but not really drawing at 60 fps. Is this posible?

Posted 1 year ago #
foogy
Member

Hi

In my case the frame rate is reported accurately.
Actually, this is not related only to the FPSLabel, it is related to having only one atlas in use.
If I have only 1 big atlas to display everything, the frame rate is 15-20fps.
But, if I add another atlas (a CCLabelAtlas for example) the frame rate goes up to 50-60fps.

I'm still investigating this, I will try to provide more details as I discover them...

Posted 1 year ago #

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