Flame attribute for cycles smoke not working I'm trying to follow this tutorial to make a realistic smoke simulation in Cycles: https://www.youtube.com/watch?v=oSiV5gg_lCs

I followed his node setup to a T, yet when I plug in the flame attribute into the emission node, my uv sphere doesn't light up like in the tutorial. 

Am I missing a setting somewhere?
Figured it out! 

The problem was that I was changing the Smoke Domain object to Flow Type: Fire + Smoke instead of the emitter object, the UV sphere.