RE: [Algorithms] "N-Patches" (ATI/DX8 triangle bezier heuristic)

[Jason M. (A. Technologies) <v-j...@mi...>]

    Check out the "Character Animation Techniques for Accelerated HW" ppt
from GDC.  I'll weigh in on this topic soon.  It's great to see so much
interest in this surface.

                  -JasonM at ATI




> -----Original Message-----
> From: Kelmenson, Dan [mailto:Dan...@br...]
> Sent: Wednesday, July 26, 2000 2:13 PM
> To: 'gda...@li...'
> Subject: RE: [Algorithms] "N-Patches" (ATI/DX8 triangle bezier
> heuristic)
> 
> 
> Which link is this referring to?  I couldn't find any link on that page
that
> seems to be the article you are referring to.
> 
> > -----Original Message-----
> > From: Charles Bloom [mailto:cb...@cb...]
> > 
> > Well, ATI's posted this on their website, so I guess we
> > can talk about it freely now.
> > 
> > http://www.ati.com/na/pages/resource_centre/dev_rel/devrel.html
> > 
> > I don't give a hoot about the DX8 implementation of this, I
> > want to talk about the algorithm of making a curved triangle
> > only using its vertices and normals.  I worked on this for
> > a while, and decided it wasn't such a hot thing to do, because
> > you can't even guarantee G1 continuity, so I abandonded
> > it and moved on to butterfly subdivision, where continuity 
> > can be gauranteed.
> >