Graphics Reference
In-Depth Information
Simulating Flames
Convincing flames can be created by adding flame-colored textures to a smoke simulation and adjusting the
light emission values. To create a simple campfire, start once again with a domain cube and a flow plane about
the sizes shown in
Figure 7-83
.
1.
Set up the domain with the values shown in
Figure 7-84
. I've set the Resolution to 64 Divisions rather
thanthedefault32.Thehigherthebetter,ofcourse,butbecausetheresolutionisvolumetric,therecanbe
a heavy toll to pay in speed and resource use for higher resolutions.
2.
Check the Dissolve check box and set the Time to about 10. Also check Slow, which causes the smoke
to disappear after the time set. This makes the simulation behave like flame, which disappears quickly as
it moves away from its source, rather than smoke, which lingers and hangs in the air.
3.
Select the Smoke High Resolution option and choose FFT for Noise Method. Again, this is a closer
approximation of the noise patterns of flame than the alternative, Wavelet, which creates a curlier, more
smoke-like noise in the simulation.
4.
OntheFlowobject'sFlowpropertiespanel,selecttheInitialVelocitycheckboxtomakethesimulation
take its initial velocity from that of the particle system.
