On Mon, 9 May 2005 14:00:00 -0700, Ralph Brunner <email@hidden> wrote:
>> float c = ( sqrt ( v.x*v.x + v.y*v.y ) < 300. ? 0. : 1. );
> the built-in function distance() is usually faster than using sqrt
What he said plus if you're using the result with a comparison then it's
faster to square (multiply) the other side rather than do the sqrt:
float c = ( ( v.x*v.x + v.y*v.y ) < (300.0f * 300.0f) ? 0.0f : 1.0f );
--
Enjoy,
George Warner,
Schizophrenic Optimization Scientist
Apple Developer Technical Support (DTS)
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