This showed up on my facebook timeline a week or two ago. Don’t know how to find it. A man goes around bring happiness to sad people. In the process, their sadness/darkness turns him increasingly dark. He goes home where his dog is also dark, but when they meet the darkness drains out of both of them, as they’ve brought each other happiness. The animation is fairly simple and I believe it lasts only a minute or so. (It’s very touching, by the way).
Would appreciate any help in finding this so I can share it. Apologies if this is not the right forum.