I have been working on rendering good looking fire like you might find inside a forge or furnace. Here are some references.
From my study so far it appears there are many many variations on fire depending on the temperature, the material and the camera exposure level.
The type of fire and coals I’m trying to create have these similarities:
-Much of the fire is made of coals. Not much of it is flame.
-The coals are black or dark near the outside or cool part of the fire.
-The coals are progressively red, orange, yellow and white as they get closer to other coals.
-The overall lighting is a warm orange glow on a dark or black background
-Turbulence and warping are visible from hot air lensing
I haven’t addressed the lensing yet - I plan to do that in animation. I’m trying to capture the rest of the elements in a blender scene. Here’s where I’ve gotten so far. I can see that it needs to be hotter and more lively. That’s what I’m working on now.
I hope to better my fire material study through community advice and to share what I’ve already learned about creating good looking fire.