[Sidefx-houdini-list] point ... normals?

Sebastian H. Schmidt sebastian.h.schmidt at googlemail.com
Thu Mar 11 07:31:48 EST 2010


if you have a mesh the normals of the point are determined by the
face/triangle normal which is defined by its points and their order:
clock-wise/counter-clock wise, the point normals then are determined by the
face/triangle normals the points contribute to

On Thu, Mar 11, 2010 at 12:23 PM, David McBride <david00289 at yahoo.com>wrote:

> since a point is dimensionless how can you orient a vector to it and say
> its orthogonal? when i display "point normals" they look like either they
> are oriented along a ray shot through the point and the center of the model
> or are somehow averaged between the surrounding surface normal vectors. does
> anyone know what the default direction actually is and how its calculated?
>  thanks,
>
> david
>
>
>
>
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