Version: 2019.2
public float radiusSpeedMultiplier ;

Description

A multiplier of the radius speed of the particle emission shape.

This method is more efficient than accessing the whole curve, if you only want to change the overall speed multiplier. See Also: ParticleSystem.ShapeModule.radiusMode, ParticleSystemShapeMultiModeValue, ParticleSystem.ShapeModule.shapeType.