Question on how to change the image data of a texture on a continual basis - iDevGames - Mac, iPhone, iPad & iPod Game Developers Forum

godexsoft · 2010.01.21, 05:32 AM

Hey,

For best performance I had to use FBO which is attached to a texture:

Code:

glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, m_unName, 0);

What you will get is simply a framebuffer which you will use just as if it was your backbuffer but the rendered stuff will go into the tuxture attached to the FBO.
In my game I have a generic Quad class which uses this.. for example I generate a static label out of my bitmap fonts engine.

HTH,
Alex

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godexsoft Member Posts: 80 Join Date: 2008.11 Location: St.Petersburg, Russia	2010.01.21, 05:32 AM Hey, For best performance I had to use FBO which is attached to a texture: Code: glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, m_unName, 0); What you will get is simply a framebuffer which you will use just as if it was your backbuffer but the rendered stuff will go into the tuxture attached to the FBO. In my game I have a generic Quad class which uses this.. for example I generate a static label out of my bitmap fonts engine. HTH, Alex TapMania - iPhone StepMania // Human knowledge belongs to the world!