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Re: Using glReadPixels

Simon Lemieux:
>
[Crash on glReadPixels]
>
> here's the code:
> GLbyte *thePixels;
> glReadBuffer(GL_FRONT_LEFT); // Is this necessary since I read from the default
> buffer?
> glReadPixels(10,10, 10,10, GL_RGBA, GL_BYTE, &thePixels);
> cout << (int)thePixels[0] << endl;

I suspect you need to allocate a sufficiently large buffer, i.e.
thePixels = malloc(number of pixels * pixel size).


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References: 
 >Using glReadPixels (From: Simon Lemieux <email@hidden>)



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