Initial angular velocity applied to each particle. Sets the speed of rotation of the particle.
Only applied when flagDisableZ or flagRotateY are true or the SpatialMaterial being used to draw the particle is using constantSpatialMaterial.BILLBOARD_PARTICLES.
Initial angular velocity applied to each particle. Sets the speed of rotation of the particle. Only applied when flagDisableZ or flagRotateY are true or the SpatialMaterial being used to draw the particle is using constant SpatialMaterial.BILLBOARD_PARTICLES.