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Chris Huff wrote:
> In article <3A06F4C7.3AB43D80@my-dejanews.com>,
> gre### [at] my-dejanews com wrote:
>
> > There is here the use of the cells pattern in a way that does not give
>
> As I have mentioned before: I think the problem is not that the diffuse
> is being set to 0(which sounds impossible), but that there is a problem
> calculating the normal for these functions. If the resulting normal is
> bad(containing NaN or something) or is just wrong, the lighting
> calculations will not work properly.
Thanks for the reply, but the point is that in this gentleman's (Makoto Mukui)
image, there is no such problem.
http://www.cs-w.com/~earth/material/isopattern.htm
Thus it is not a fundamental, inescapable problem with step functions in
to sleep.
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