Thomas de Groot <tho### [at] degroot org> wrote:
> I am frankly at a loss for a solution, but some questions impose
> themselves maybe.
>
> 1) are the two ends overlapping?
>
> 2) the ends do not seem to be exactly parallel, (outer) edges flowing
> smoothly into one another.
>
> 3) could the effect be due to refraction?
>
> Thomas
The lathes were built with the lowest point on the ground plane then rotated 90
degrees. The other bulb is mirrored so the edges should be coincidental.
Although I can see that there is not a smooth transition between them in the
opaque image. The inner lathe extends past the outer one and the highest level
CSG is a merge so there should be no internal surfaces.
Well the IOR is quite high for glass, greater than 1.5 IIRC. I was wondering
about internal reflections as well.
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