Tom Melly <tom### [at] tomandlucouk> wrote:

> Hmm, I've always assumed that POV throws away any mosaic info without using
> it for any subsequent action (except for radiosity), and that any other
> renderer must do the same.

> After all, calculating that an area x pixels by x pixels is dark green on
> average does nothing helpful when it comes to calculating the colour of an
> individual pixel. The only exception I can think of is if the average is rgb
> 0 or rgb 1 (or whatever the appropriate equivalent is).

> If this isn't the case with either POV or Bryce, can someone give me an
> idiot's explanation of how the info is used?

> (and BTW that's an explanation FOR and idiot, not BY one)

I always assumed that it didn't antialias during previews.  So the color of
the pixel is the color of the upper left corner.  Each progression only does
the three other corners of the pixel.  The last render does all the pixels,
but with anti aliasing and the like.

I could easily be wrong on this, though.

Geoff

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