[aquaria] Scenario colision detection issues in achurch.org hg/aquaria tip
Andrew Church
achurch+aquaria at achurch.org
Fri Dec 31 16:44:35 EST 2010
>> collisions are calculated by reading the texture data with glGetTexImage(),
>
>That sound you hear is a dozen Apple OpenGL engineers' heads exploding. :)
>
>We should probably not read back from the GL, broken drivers or not.
With all due respect, I disagree. glGetTexImage() is part of the core
OpenGL spec, even in OpenGL 4.1, and this is actually the first case I've
heard of where that is even a potential problem. As far as I'm concerned,
any driver that doesn't fully implement the specs is broken and should be
shunned. (:
(This of course doesn't apply to OpenGL ES, but that's a whole different
kettle of fish.)
--Andrew Church
achurch at achurch.org
http://achurch.org/
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