StephenS <nom### [at] nomailcom> wrote:


> First test with liquid. I'm not happy with the background normal.

Perhaps make it a bit less pronounced.

The background _geometry_, or perhaps the view angle is a bit disconcerting.
It looks like it might be under, and then curving up back behind the glass.

> I may have to buy a suitable liquid for a shot glass, for research purposes.

Anything worth doing is worth doing properly.
If you're dedicated to this scene, then it's probably advisable to procure test
materials in clear, amber, and rich brown colors, to ensure an accurate
representation of the pigment and ior.

It's hard to tell due to the potential optical effects of the refractive index
of the glass - but there doesn't seem to be any visible glass on the sides now.
What does a cross-section show about your glass and the liquid geometry/size?


Perhaps you can add a normal or a tiny geometric layer to the top of the liquid
to add a just-barely perceptible bit of "outside world" to it.

http://www.f-lohmueller.de/pov_tut/backgrnd/p_wat5.htm
http://www.f-lohmueller.de/pov_tut/all_shapes/shapes920e.htm
http://www.nolights.de/downloads.html#lssm
https://mscharrer.net/povray/fountain/
http://www.imagico.de/pov/water/water05.php



Very nice progress - and good luck with your research!   ;)

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