hmm...

according to one of the blurbs that comes up in POV-Ray 3.1e, settings
10 and 11 are no longer valid..

Dan

Bob wrote:
> 
> ----quote----
> Quality=n       Set quality value to n (0 <= n <= 11)
> +Qn     Same as Quality=n
> 
> The Quality=n option or +Qn switch allows you to specify the image rendering
quality.
> You may choose to lower the quality for test rendering and raise it for final
renders.
> The quality adjustments are made by eliminating some of the calculations that are
> normally performed. For example settings below 4 do not render shadows. Settings
below 8
> do not use reflection or refraction. The duplicate values allow for future
expansion.
> The values correspond to the following quality levels:
> 
> 0, 1    Just show quick colors. Use full ambient lighting only. Quick colors are
used only
> at 5 or below.
> 2, 3    Show specified diffuse and ambient light.
> 4       Render shadows, but no extended lights.
> 5       Render shadows, including extended lights.
> 6, 7    Compute texture patterns.
> 8       Compute reflected, refracted, and transmitted rays.
> 9       Compute media.
> 10      Compute radiosity but no media
> 11      Compute radiosity and media
> 
> The default is 9 if not specified.
> ----unquote----
> 
> This is how the POV-Ray 3.1 Scene help reads. The 0,1 and 2,3 and 6,7 are apparently
> simply the same things.
> 
> Mark Wagner wrote:
> >
> > What calculations do the various Quality levels activate?  That section of
> > the Windows help file is messed up, so I can't tell if, for example,
> > 'Compute texture patterns' goes with quality 5 or quality 6.
> >
> > Mark
> 
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