[x3d-public] Nurbs for x3dom

[GPU Group]

Q. is x3d missing a type of smooth-surface component? I have a text book on
my shelf  "Curves and Surfaces for CAGD" (Computer Aided Geometric Design)
Gerald Farin, 3rd Edition. In there are some ways to drag layers of control
points that 'influence' points on the surface. Any one surface point is a
function of a number of control points. So if you move one control point,
you don't get a rough bump because its influence is scattered / diffused a
bit.
Flipping through I see 'de Castleau Algorithm' and 'B-Spline' and I see
color plates with smooth car hoods. When working on the Nurbs Component, I
was thinking 'OK, but where's that other stuff?'.
=Doug

On Wed, Sep 5, 2018 at 12:22 PM Joseph D Williams <joedwil at earthlink.net>
wrote:

>
> http://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/nurbs.html#t-supportlevels
>
>
>
> Or maybe the existing support levels somehow line up.
>
>
>
> Thanks,
>
> Joe
>
>
>
>
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