Fantasy/sci-fi race with natural infravision creating heat-based art

heat things up in beautiful patterns, then embrace the transient nature of the piece as it cools

Oh, that's a really neat idea.

yesss

I wonder if you could do something like that in real life, with a camera and an infrared filter...

outdoor art made of various materials with different heat conductivity so that the patterns are constantly shifting over the course of the day