05-29-2020, 05:48 AM
If particles are being birthed/deleted, it's generally a better idea to retime the flow and either reference it with another flow that does the Spline Paths creating, or simulate it at a slower time scale and then do the Spline Paths creation without explicitly retiming. Otherwise you're trying to extrapolate data using the spline retimer that doesn't exist (ie, subframe position/velocity of particles that don't exist).