From This is Colossal:
WoodSwimmer is a new short film by engineer and stop-motion animator Brett Foxwell…the work follows a piece of raw wood through a milling machine, capturing its unique growth rings, knots, and weathered spots through a series of cross-sectional photographic scans. Due the speed at which the images are animated, the log’s grains begin to flow like granules of sand—shifting, mixing, and flowing in a vibrant dance that seems completely removed from its rigid material.