POV-Ray : Newsgroups : povray.newusers : UV texture scale center : Re: UV texture scale center Server Time
30 Apr 2024 18:49:33 EDT (-0400)
  Re: UV texture scale center  
From: clipka
Date: 22 Jan 2015 10:10:38
Message: <54c112ee$1@news.povray.org>
Am 22.01.2015 um 15:06 schrieb Mr:
> Hello, I am meeting a problem with the scale keyword used for texture, it seems
> that the POV scale factor and repetition factor in Blender do not use the same
> center. I would guess that Blender seems to scale the texture from the zero of
> the UV space, like in this picture, it is scaled by half (repeat factor of 2)
> http://www.pasteall.org/pic/show.php?id=82692
> while POV maybe from the 1, I don't know can someone tell me?
> it's result, with a scale of 0.5 is this:
> http://www.pasteall.org/pic/show.php?id=82693
>
> My goal is to have both pictures always the same whatever the blender interface
> parameters for texture scale are.
> I don't know if this has always been the case, it seems that some images
> rendered
> with early 3.7 betas did not behave this way and were more consistent with
> Blender renders, but I may be wrong.

In POV-Ray, if you scale any texture, the origin of scaling is at 
<0,0,0>. For UV-mapped textures, UV-mapping is applied after scaling 
(you're UV-mapping the scaled texture).

At least that's what should happen. If closer investigation shows it 
doesn't, please let us know.


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