scott wrote:
> Being able to render the patches directly without triangulating would be 
> cool!  I guess you "just" need a ray-patch intersection formula - does 
> such a thing exist?  Or use some kind of sampling method like media to 
> find the surface?  I have no idea if that will be any faster than 
> splitting up into pixel sized triangles.


Sure, they exist.  I used to expand functions like that by hand for fun 
(yes, I was weird... actually, I'm *still* weird :) ).  I think a 
bicubic patch filled most of an 8.5x11 page if you wrote small ;)

...Chambers

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