Thomas de Groot wrote:
> "stbenge" <UN### [at] hotmailcom> schreef in bericht 
> news:4b283e59@news.povray.org...
>> I really need to make a small functioning example to provide along with a 
>> bug report.
> 
> I may be talking nonsense here, but those same features are often also 
> created by WM or GeoControl. I don't remember them from Leveller, but it has 
> been a while since I last used that app. Do you think they have the same 
> origin? Are they the same kind of bug?

I doubt they are the same bug.

Check this out:

height_field{
  png"mountains.png"
  ...
}

It works just fine, always has.

Compare it to this:

height_field{
  function 513, 513{
   pigment{
    image_map{
     png"mountains.png"
     interpolate 2 once
    }
   }
  }
  ...
}

This is when edge artifacts show up. The dimensions are correct. The 
problem happens regardless of image_map attributes such as interpolation 
and repetition.

I would say it's a height_field issue, but I know it's not. I have 
encountered this same problem when using image_maps at other times, like 
for my luminous bloom code.

> In GeoControl I can correct manually with a brush, but in hf's from WM I 
> just cut off a thin slice around from it by using an intersection in POV. 
> Not very elegant as a solution but it works.

Whatever works :)

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