In article <9uuv4uoaebc3dldemv9snhjmopultmctlj@4ax.com>,
 Peter Popov <pet### [at] vipbg> wrote:

> Then the renderer would have to trust that the order is correct, and
> that is the task of either the export utility or the scene that
> generates it. In any case the user shouldn't be doing the renderer's
> job.

No. There is no way for the renderer to reliably determine the correct 
normal, and such a mechanism would break many meshes that use the 
winding to determine it. It normally isn't a problem anyway, since POV 
renders both sides of the triangle.
And it isn't related to the height field problem, which has more to do 
with the interpolation of smooth triangle normals.

-- 
 -- 
Christopher James Huff <chr### [at] maccom>

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