# TP Follow Spline

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TP Follow Spline let's particle follow a spline. This can be used to simulate flow of liquids in tubes or to guide particles to move in a genral way
On: Activates the Preset. This parameter can be easily animated to switch it on and off as needed
Particle Group: Thinking Particles group that will be used
Spline Object: Spline that is used to guide the particles
All Segments: This settings determines if all or only the indicated segment of a spline shall be used
Trigger Distance: Distance to the spline where the particles start to react on the
Precision: Number of subdivisions the spline will be divided into. The higher the more precise the particles will follow the spline
Segment: If All Segments is off this determines which segment of the spline is used
Point Velocity: This parameter determines how strongly particles are drawn towards the spline
Tangent Velocity: This parameter deterines how strongly the velocity of the particles is adjusted to mathc the tangent of the nearest point on the spline
Keep Speed: If active particles will keep their original speed, only the direction of their movement will be adjusted
Distance Influence: This parameter allows to fine tune how strongly Point Velocity and Tangent Velocity will affect particles depending on their distance to the nearest point on the spline
Example file Movie (QT)
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