> I also think that the reason for the slow raytracing is the large number
> of control points (and thus high degree) on the Bezier Surface. I haven't
> tried your method mentioned above yet, but it sounds quite reasonable.
> I also consider methods reducing the order of Bezier curves (and thus
> Bezier surfaces), as there are lots of algorithms on this topic, trying to
> represent a high degree Bezier curve with a reduced degree curve as
> accurately as possible. One simple approach can be found at:
> http://www.yamnuska.ca/geek/degreeReductionBezier.pdf .
So, what about this approach (the link above)? I think it's probably the most
direct way of degree reduction on Bezier surfaces. Although we can only reduce
the degree by one through one pass, and it takes some time to finish the whole
reduction, but maybe not too much. What's your opinion on this method? Thank
you.
Cheers!
Wu
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