Burning Coals

Burning coal texture made entirely procedurally in Substance designer. Contains three levels of heat accessible via a slider.

High heat. Coals are translucent and flaky. Emits a warm orange glow.

Low heat. Coals on the bottom are hot, but ones on top have not yet caught fire. Lower emission, lower roughness.

No heat. Surface beneath is gray and pebble, and surface of coals is smooth, with varying degrees of char on the outside.