CVImageBufferRef to OpenGL

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CVImageBufferRef to OpenGL

Has anyone managed to turn a CVImageBufferRef into an OpenGLES texture? I´ve tried using:

glTexImage2D(GL TEXTURE2D, 0, GL_RGBA, width, height, 0, GL_BGRA, GL UNSIGNEDINT, CVPixelBufferGetBaseAddress(image));

but the texture comes out completely black. Any help?

IPhone 3GS, iOS 4, none

Posted on Sep 29, 2010 9:38 AM

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Answer 1

opsGavin

Level 1

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Oct 10, 2010 5:33 AM in response to Arkano

I think you should just be able to use CVImageBufferRef directly as a texture:

CVImageBufferRef image;
...
glBindTexture( CVOpenGLTextureGetTarget( image ), CVOpenGLTextureGetName( image ) );

This certainly works for me in a modified version of Apple's QTCoreImage101 example, but I'd be interested to know if it is considered completely safe.

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