On Tue, 5 Mar 2002 09:12:47 -0600, "Shay" <sah### [at] simcoparts com> wrote:
> The weighted normals look better. Is this the case with every mesh?
This is just more accurate method of averaging.
> This goes against everything I have seen concerning mesh normals.
Not exactly. Weighting is just longer and result is visible when there are
differences in triangle area.
> By a weighted average, do you mean simply not normalizing the normal of each
> triangle?
Considering you have N triangles with vertex P:
- take all N normals as previously
- normalize them as previously
- new step: multiply/adjust according to area of triangle
- add all N normals as previously
- normalize this sum as previously (I'm not sure it is necessary)
So only new thing is muliplying. This is done to save larger triangles more
float.
ABX
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