Legacy Documentation: Version 5.1
Limit Velocity Over Lifetime Module
Color Over Lifetime Module

Force Over Lifetime Module

Particles can be accelerated by forces (wind, attraction, etc) that are specified in this module.

Properties

Property: Function:
X, Y, Z Force applied to each particle in the X, Y and Z axes.
Space Selects whether the force is applied in local or world space.

Details

Fluids are often affected by forces as they move. For example, smoke will accelerate slightly as it rises from a fire, carried up by the hot air around it. Subtle effects can be achieved by using curves to control the force over the particles’ lifetimes. Using the previous example, smoke will initially accelerate upward but as the rising air gradually cools, the force will diminish. Thick smoke from a fire might initially accelerate, then slow down as it spreads and perhaps even start to fall to earth if it persists for a long time.

Limit Velocity Over Lifetime Module
Color Over Lifetime Module