English: A 3D model of organic molecules created using Rhinoceros 3D and rendered with Vray. The molecules are, from foreground to background: cyclohexane, methane, ethane, and heptane. The ray-tracing depth was set to 9, and caustics are enabled. The index of refraction of the glass material is set to 1.55. Same as File:Glass ochem.png, except with depth of field enabled. The virtual lens has a focal length of 120 mm, is stopped down to f/11, and is positioned 23.6 cm from the subject. Of course, there are no real-life 120 mm macro lenses capable of focusing that closely (the wonderful Voigtlander SL 125mm f/2.5 APO-Lanthar, for instance, has a minimum focusing distance of 38 cm). Due to the Monte-Carlo nature of the algorithms used, there is a significant amount of image noise; but this has been largely eradicated using Photoshop.