http://bugs.freedesktop.org/show_bug.cgi?id=10783





------- Comment #6 from [EMAIL PROTECTED]  2007-05-01 07:02 PST -------
(In reply to comment #5)
> If I were to follow the pattern of the other trigonometry functions in Mesa's
> GLSL, I'd add OPCODE_ACOS/ASIN instructions and simply call acos/asin() in the
> program interpreter.
> 
> I doubt, however, that any target GPUs will have native ACOS/ASIN instructions
> so those Mesa instructions would have to be expanded into code to compute an
> approximation.  That'll probably be needed for sin/cos as-is.
> 
> I believe Ian's code is meant to go into the GLSL acos/asin functions so that
> it gets compiled into Mesa GPU instructions.  I'll give that a try.
> 

That's probably a good point.  I'm a rare bird living in the land of OSMesa.


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