OpenGL-ES: clearing the alpha of the FrameBufferObject

Posted by MrDatabase on Game Development See other posts from Game Development or by MrDatabase
Published on 2011-02-14T20:39:49Z Indexed on 2011/02/14 23:35 UTC
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graphics

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textures

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opengl-es

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ipad

This question is a follow-up to Texture artifacts on iPad

How does one "clear the alpha of the render texture frameBufferObject"? I've searched around here, StackOverflow and various search engines but no luck. I've tried a few things... for example calling GlClear(GL_COLOR_BUFFER_BIT) at the beginning of my render loop... but it doesn't seem to make a difference. Any help is appreciated since I'm still new to OpenGL.

Cheers!

p.s. I read on SO and in Apple's documentation that GlClear should always be called at the beginning of the renderLoop. Agree? Disagree? Here's where I read this: http://stackoverflow.com/questions/2538662/how-does-glclear-improve-performance

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