Centre of gravity.
Can be obvious, but when animating some shots with liquids, we sometimes dont take this in account and it can create some weird things.
Plus, it can be a good exercise to play with water animation, how it stretches, bounce back and forth,...
#2dfx#vfx
Photographer Tanakit Suwanyangyaun has possibly been lucky enough to capture the moment a blue whale blew a rainbow coloured heart as it came up for air [source: https://t.co/yIUm8mHddm]