Creating the campfire simulation
To get a head start on this chapter, we have already created a 3D model of a campfire called Campfire Setup.blend for you to download. This .blend file includes some logs, rocks, and materials already in place; that way, we can jump straight into creating the simulation.
When you open the Campfire Setup.blend file, you will notice that the campfire is very large. The reason for that is because Blender doesn’t simulate very well at a small scale and can cause you problems. We’ve had problems where the fire fills up the entire domain, then the fire looks very noisy and the bake will take a super long time. In general, it’s usually a good idea to simulate at a large scale.
What if you already created a scene at a small scale? Well, a solution for that would be to create a simulation in another blend file, then import that simulation as a volume object. At that point, you will be able to scale down the fire and move it anywhere...
