For pyrotechnic-type effects, this tab lets you control fuel and burn!
The Ignition Temperature controls at what temperature fuel will be allowed to burn, This can also be controlled with a control ramp if you need to do something more complex like only letting fuel burn if it is moving very slowly.
Advect Fuel does just that, it advects the fuel the same as any other field. Sometimes with an effect like burning wood you maybe want to have your fuel stay put, but with a flame thrower fuel material is shot out and mixes with the air.
Fuel Burn controls the rate at which fuel is removed from the simulation.
Fuel Inefficiency controls how much of the burnt fuel is actually removed from the simulation. This is helpful if you want fuel to burn but not actually be removed from the sim making it last longer without needing to actually inject more fuel.
Fuel Threshold controls what density fuel is allowed to burn. Any fuel value above the threshold will not be allowed to ignite until it diffuses naturally and reaches below this value. This is good for doing air-fuel mixture type effects.
For every unit of fuel burnt, how much of each of these values do you want to introduce into the simulation? Density emits density, temperature emits temperature, and pressure emits pressure that causes your simulation to expand outwards. Be careful not to add in too much pressure or else the simulation might explode in a bad way.
