mercury thermometer. The material uses raytrace maps for both reflection and refraction. If you want to make a quick test render I would recommend turning off the reflection map. I have also turned on Global Supersampling in the scanline rendering options and set it to Hammersley. This seems to produce sharper lines through the glass material. You can save a few secs by turning off while test rendering. This model is also included in my lab equipment collection. It is in the Liebig condenser scene if you look for Simplicity3d on Turbosquid
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