Fire


Simulate fire with detailed controls for fuel source, flame appearance and behavior.

Fire

The Fire effect creates procedurally generated flames. There are numerous settings to control the behaviour and appearance of the fire.

Fire regions

There are three definable regions for the fire: flammable region, blocking region and burn direction. If you leave these blank the fire will use the entire layer as its source (excluding transparent areas).

If you select a layer and channel for any of the regions or the direction the fire will be influenced by those elements. This way you can use layers such as gradients to further control the fire's behaviour.

Item

Description

Seed

Creates a different random variety of fire.

Iterations

More iterations will create a more realistic simulation of the fire's movement.

Pre-start

By default the fire starts on the first frame of the layer. This enables you to start the fire before the first frame. Useful if you need the fire to be established at the beginning of the shot.

Flammable End

Determines when the fire is no longer visible.

Source Scale

Changes the size of the fire map pattern.

Source Variation

Adjusts how often the fire map pattern changes. Low variation will create a smoother, less volatile fire.

Source Fill

Changes the density of the fire map.

Movement

Changes the length of the flames.

Source Noise

Adjusts the randomness of the fire map.

Source Intensity

Adjusts the brightness of the fire map.

Reload Maps

Activating this property creates a more realistic simulation when the flammable region is animated, at a performance cost.

Source Position

Moves the entire fire simulation as a single element. Useful when compositing into a moving shot.

Wind

Simulated wind can be applied to the fire to push the flames in a particular direction.

Appearance

The color and blend method of the fire can be altered here.

The temperature settings change the intensity of the fire. A lower low temperature will reveal more detail in the flame.