Version: Unity 6.3 LTS (6000.3)
Language : English
Rotation over Lifetime module reference
External Forces module reference

Rotation by Speed module reference

The rotation of a particleA small, simple image or mesh that is emitted by a particle system. A particle system can display and move particles in great numbers to represent a fluid or amorphous entity. The effect of all the particles together creates the impression of the complete entity, such as smoke. More info
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can be set here to change according to its speed in distance units per second.

Properties

For some properties in this section, you can use different modes to set their value. For information on the modes you can use, refer to Vary Particle System properties over time.

Property Function
Separate Axes Control rotation independently for each axis of rotation.
Angular Velocity Rotation velocity in degrees per second.
Speed Range The low and high ends of the speed range to which the size curve is mapped (speeds outside the range will map to the end points of the curve).

Additional resources

Rotation over Lifetime module reference
External Forces module reference