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Moving Strands with Sine Waves

The Strand Sin Wave Movement compound animates the strand using the mathematical sine function, which creates an undulating wave motion. A sine wave has a wave amplitude over a period.

To make strands move with a sine wave

1. Create a particle emission—see Creating ICE Particle Emissions for information.

2. In the ICE tree’s preset manager, click the Task tab and select Particles.

3. Create strands using either the Create Strands or Generate Strand Trails compound from the Strands group.

4. Drag the Strand Sin Wave Movement compound from the Strands group into the ICE view.

5. Plug its Execute output into a Port on the ICETree node.

6. In the Strand Sin Wave Movement property editor, you can set the number of waves, the wave speed (frequency), the wave speed timing (current time or based on the particle age), and the wave direction along the particle’s local axis.

You can set the wave strength using a profile curve that defines the amplitude of the sine wave, from the strand’s base to tip, multiply that strength, and offset the wave timing so that the strands don’t all have the same sine wave at the same time.

For more information on the parameters, click the ? icon in the property editor or see Strand Sin Wave Movement.

Autodesk Softimage v.7.5     <     >