POV-Ray : Newsgroups : povray.beta-test : Function image type mirrored vertically : Re: Function image type mirrored vertically Server Time
29 Jul 2024 22:27:42 EDT (-0400)
  Re: Function image type mirrored vertically  
From: Rune
Date: 6 Apr 2002 18:18:18
Message: <3caf823a@news.povray.org>
"Thorsten Froehlich" wrote:
> No, it isn't reversed, it only appears to be because
> of different coordinate systems.

Right, then one coordinate system is reversed vertically compared to the
other. Why do you say it isn't reversed when obviously everyone can see that
it is indeed reversed, no matter what you choose to call it?

> When generating the image the origin and coordiante
> system of an image is used.  This means that the
> upper left is (0,0) and the lower right of the image
> generated is function value (1,1).

Yet, strangely, when using an image map the upper left corner is at (0,1)
and the lower right corner is at (1,0). This is because POV-Ray takes care
of the correction for the user.

Why can't POV-Ray correct the alignment for the user when using the function
image type, so that the user won't see any hint of reversed coordinates?

Rune
--
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