"scott" <sco### [at] scottcom> schreef in bericht 
news:4ba0aea8@news.povray.org...
>I noticed that if I make a height field like this...
>
> height_field
> {
>   function nPoints, nPoints {fn_X(x,0,y)}
>   smooth
> }
>
> as you increase "nPoints" the normals get messed up somehow (visible 
> easily
> if you have specular or reflection enabled) both with and without 
> "smooth".
> Check the attached images, notice how the grid texture becomes better with
> nPoints at 1000, but then the normals get screwed up.  Is it a bug?
>
>
I am probably wrong, but imo, those are not the normals (no normals defined 
here) but just the detail of the grid becoming smaller. Have you tried 
nPoints=10000?

Thomas

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