Global Variable

SCNParticlePropertyFriction

The particle’s friction coefficient.

Declaration

const SCNParticleProperty SCNParticlePropertyFriction;

Discussion

This property’s value is a floating-point scalar (an NSNumber object for particle property controllers, or a single float value for particle event or modifier blocks).

The particle system’s particleFriction and particleFrictionVariation properties determine the initial friction coefficient for each particle.