Fabien Mosen wrote:

> "Greg M. Johnson" wrote:
> > 1) PROGRESSIVE RENDER.
>
> You will be happy : it's already there !! Command-line options
> +SP +EP ..

Could you please tell me the menu for the Windows version and the phrase
I could add to POVRAY.INI?

>
> > 2) VOLUME
>
> For simple primitives, knowing the volume is easy.  For more
> complex stuff, you could write a #macro that samples the volume
> of an object, using the "object" pattern (in MegaPOV).
>
> Fabien.

I can imagine how to do this with a few zillion trace calls and counting
cubes, but not immediately how to do with object pattern.

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