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6.15.1 Turbulence

The purpose of this example is to demonstrate how the direction and the strength of the force is defined.

1. Create a particle flock. One very easy way to do it is to use Create/Compound Tools/Object-Pixel Tool.

2. Create a DIRECTED FORCE method.

3. Create a B-Spline curve under the method. The direction of the force is the direction of the curve corresponding the current time. When the animation is played, the time runs from 0 up to 1 and the direction of the force varies according to the curvature of the method parameter. If the parameter is just a straight line, it generates a force field with constant direction, because the direction of the curve is the same everywhere. A Circle makes the force field rotate etc.

4. Create a PROCESSOR method at the same level with the force method.

realtut6.15.1_1.png (2776 bytes)
YouTube Figure T6-45: A Directed Force Field Defined by a B -Spline Curve.

5. Set the Seconds field of the Animation window to 2.0.

Play the animation. The shorter the distance between the particle and the parameter object, the stronger the force field.

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