Hugo wrote:
> 
> Hello,
> 
> I'd like to use POV as a kind of 2d animator. In other words, I load some
> image_maps and move them around the screen. But for this to work reasonably,
> I need a way to calculate the exact step in POV units between each pixel on
> screen. This should be possible since Z is always zero, and I use an
> orthographic camera.
> 
> But how?

You have the right and up vectors of the camera and the image_width and
image_height constants.  This should be enough to calculate the position.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
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Last updated 13 Aug. 2002 _____./\/^>_*_<^\/\.______

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