This is the pbrt-v3 version of 'Glass of Water' by aXel, downloaded from https://benedikt-bitterli.me/resources/

The original file may be obtained here: http://www.blendswap.com/blends/view/21697

This scene was released under a CC0 license and is in the public domain.
It may be copied, modified and used commercially, without permission or
attribution. However, crediting the artist is encouraged.

For more information about the license, please see
https://creativecommons.org/publicdomain/zero/1.0/