What happened to the page turn transition? It's all spiky as it goes off screen.
I would really like to use this transition can anyone provide any insight?
Transitions problem?
(20 posts) (6 voices)-
you are using a depth buffer, right ?
Posted 6 months ago # -
@Riq
I saw that default depth buffer is kDepthBufferNone. But if we change it to 16 or 24, so transitions like page turn can work, are there any performance issues that can emerge from a change? For example I know that changing pixel format from 16bit to 32bit greatly reduce FPS, but I don't know anything about depth buffer and its impact on FPS...
Thanks
Posted 6 months ago # -
@crmagicxxx: It will consume more memory, and probably it might be a little bit slower when rendering some scenes... but I didn't do any performance test, so I'm not sure.
Are you interested in doing them ?Posted 6 months ago # -
Ok Riq, I can do it, just tell me how? :)
Should I open your standard performance test and compare results or what? For particles, sprites and touches?Posted 6 months ago # -
@crmagicxxx:
I think that the depth buffer will affect the rendering, so the test that I would do is:- Use the sprite performance test as a template, but I would create a new test (eg: DepthBufferPerformanceTest). I would use only the tests that do not trigger that "fill rate" limit, for example, tests 10-11-12, and I would include only the A tests.
- So, I would add 3 options: 0-bit, 16-bit and 24-bit depth buffer.And another thing that I would do is to place the sprites at different Z values (OpenGL Z, not cocos2d Z).
Example:
sprite.vertexZ = random(-1000,1000);the 0-bit depth buffer should not perform worse than the 16-bit or 24-bit buffers. If so, something really strange is happening.
Instead, it should perform a little bit better, but I'm not sure if it should perform better in all tests.Posted 6 months ago # -
Ok, I'll try doing what you suggested
Regards
Posted 6 months ago # -
Ok...I enabled depth buffer and I still get some artifacts on the left hand side of the screen at the start of the animation, you do get them in the test transition as well but I think because it's landscape you don't see them that clearly (probably because of the type of images too).
I did a test project and made a movie. http://www.purplezoo.com/pageturn2.mov
Posted 6 months ago # -
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Posted 6 months ago #
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Wow, I was literally just here to type the same question. I tried the hack mentioned in the issue list, but no help. Really looks crappy when all those triangles flicker on the left.
IS there any option or alternative to this particular page-turn transition? Telomere uses a page-turn, and they seem to have beat the problem.
Posted 2 months ago # -
Hi ... I released the Alice app and this issue *was* previously fixed by un-commenting
[[CCDirector sharedDirector] setDepthBufferFormat:kDepthBuffer16];in the application delegate and then using the solution in http://code.google.com/p/cocos2d-iphone/issues/detail?id=751
looks like the new iPad OS somehow broke the fix though - I'm now seeing glitches on the left edge. Issue has already been re-opened, just heads-up for anyone else struggling with this.
Posted 1 month ago #
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