<snip>
>However, after toying with objects, I've discovered that
>the bug is related to spheres and ellipsoids. A cube a couple
>of thousand miles wide set at a quarter millon miles is visible
>(as a pixel, granted, but still visible). A sphere, 6 k miles wide,
>(assuming a pov unit is 1 meter) at 292 000 miles is not visible.
<snip>


Rather than a bug that only effects these shapes, could it not just be that
a sphere's image is less clear than a squares from the same distance?  For
example, looking straight at at, a cube will show up as a solid, pretty much
evenly shaded square.  A sphere will however be more of a brighter point
with dimmer edges around it.  Perhaps, at these distances, it is the less
visible properties of the sphere that makes POV decide there's not enough
light to plot a pixel - unlike the cube, which may just have enough light
from it's apparently brighter side to appear as one.


Just my 2 pence :)

Matt

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