PointParticleSystem or QuadParticleSystem faster?

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PointParticleSystem or QuadParticleSystem faster?

(4 posts) (3 voices)

Started 1 year ago by vargonian
Latest reply from riq

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vargonian
Member

From the recent release notes (0.99.4), there's a bullet point under "Particles" that reads:

* Particle Samples are subclass of Quad particle and not Point Particle (performance reasons)

But from the API reference, CCQuadParticleSystem is described as being slower and more resource-intensive than CCPointParticleSystem:

*It is a bit slower that PointParticleSystem
*It consumes more RAM and more GPU memory than PointParticleSystem

I'm not sure I understand why CCQuadParticleSystem is implied to be faster in one case but slower overall. Can anyone explain this?

Posted 1 year ago #
araker
Moderator

Weird that the api docs aren't updated, since they are generated from the source files. This is the description in the .h file..

/** CCQuadParticleSystem is a subclass of CCParticleSystem

It includes all the features of ParticleSystem.

Special features and Limitations:
- Particle size can be any float number.
- The system can be scaled
- The particles can be rotated
- On 1st and 2nd gen iPhones: It is only a bit slower that CCPointParticleSystem
- On 3rd gen iPhone and iPads: It is MUCH faster than CCPointParticleSystem
- It consumes more RAM and more GPU memory than CCPointParticleSystem
- It supports subrects
@since v0.8
*/

Posted 1 year ago #
vargonian
Member

Thanks, good to know! Unfortunately it creates yet another dilemma for me when deciding how much to support newer versus older hardware, hmm...

Posted 1 year ago #
riq
Key Master

Try jonkean repository:
http://github.com/jonkean/cocos2d-iphone/commit/f2c3b068cface0ae57b451263049a2bce79109a4

If I understood correctly this patch uses QuadParticles in arm7, and PointParticles in arm6

I'll merge it for v0.99.5

Posted 1 year ago #

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