POV-Ray : Newsgroups : povray.binaries.images : hf_tools.inc : Re: hf_tools.inc Server Time
28 Sep 2024 13:01:01 EDT (-0400)
  Re: hf_tools.inc  
From: Thomas de Groot
Date: 17 Dec 2009 03:17:52
Message: <4b29e930$1@news.povray.org>
"stbenge" <UN### [at] hotmailcom> schreef in bericht 
news:4b2931c8@news.povray.org...
> 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.

Ah, right. I see your point. One way or another I have never noticed this 
difference. Strange indeed. Thanks for drawing my attention to it.

Thomas


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