OpenGL 2 « cocos2d for iPhone

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OpenGL 2

(11 posts) (4 voices)

Started 2 years ago by terrym
Latest reply from terrym

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terrym
Member

Hi

Is support for OpenGL 2 planned for a future version, so that when games are run on an iPhone 3GS they use this.

Thanks

Posted 2 years ago #
riq
Key Master

it's planned:
http://www.cocos2d-iphone.org/wiki/doku.php/roadmap

Posted 2 years ago #
Codemattic
Moderator

What sorts of benefits (other than speed) will opengles2.x bring?

Posted 2 years ago #
Codemattic
Moderator

Recently Ive seen developers wanting to do realtime blur effects. Is that the sort of pixel effects that will be doable with 2.0?

Posted 2 years ago #
terrym
Member

One of the main things for myself is that a bug exists in the OpenGL emulation for iPhone 3GS and this is causing our application to run at 40fps every so often when it is launched.

Are there any workaround for this anybody :(

Posted 2 years ago #
jd
Member

CADisplayLink is supposed to solve that.

Posted 2 years ago #
terrym
Member

Could you please let us know more about CADisplayLink

Posted 2 years ago #
Codemattic
Moderator

@terrym, a search of the forums for "CADisplayLink" gives:

http://www.cocos2d-iphone.org/forum/topic/1780

Posted 2 years ago #
terrym
Member

Found and trying thanks, I hope this fixes it as we have now implemented this by using the new 0.8.2 beta as it has

[Director setDirectorType:CCDirectorTypeDisplayLink] to use this method

Posted 2 years ago #
riq
Key Master

@codemattic: OpenGL ES 2.0 let's you have "shaders".
A shader is a program written in an special language that is understood by the GPU.
With these kind of programs you can control the vertex and the pixels.
They give you more flexibility and also, they also are faster.

This article explains in more detail the capabilities of the shaders:
http://en.wikipedia.org/wiki/Vertex_and_pixel_shaders

Posted 2 years ago #
terrym
Member

Do you think v1.0 or v0.9 will have the OpenGL 2 :) so we can start to use shaders as we need them lol for our next game as in the Windows version of the game we use shaders to give our models a very cool plastic look.

Posted 2 years ago #

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