Shape Jitter Op Property Editor
 
 
 

|Shape Jitter Op | Time Control

Randomly displaces points over time.

To apply: Select one or more objects, clusters, or points then choose Deform Shape Jitter from the Model or Animate toolbar.

To redisplay: Select the deformed object then choose Edit Properties Modeling Properties and click the Shape Jitter Op tab.

Shape Jitter Op

Mute

Toggles the deformation on and off without affecting the values of other parameters.

Amplitude

The maximum amount of displacement along each local axis.

Random Values

Seed

A value used to generate a pseudo-random number. Different values produce different numbers, but the same value always produces the same number. This lets the effect be reproduced exactly if necessary.

Group Vertices By

Divides the points into groups of the specified number and moves each group as a unit. This is useful if an object is composed of several non-contiguous shapes and you want the shapes to move relative to each other but not be deformed internally.

Independent Streams

Random numbers are reused to save memory. In certain cases, this can cause discernible patterns in the motion. To counteract this, increase this parameter; as a general rule, it should be equal to or greater than the cube root of the number of control points. For example, if the object has 1000 control points, this value should be 10 or more.

Deformation

Frequency

The relative number of shapes over time. High values create a very jittery effect, while low values produce a smoother effect.

Tension

The interpolation in space between shapes. Smaller values produce smoother interpolations. When Tension is 1, the two nearest shapes are interpolated. When Tension is 0, the four nearest shapes are interpolated.

Cumulative

Specifies whether the displacements accumulate over time. When off, points jitter about their original values. When on, points may become further and further displaced from their original values.

Time Control

Start offset

The first frame for which the jitter begins to affect the object.

End

The last frame for which the jitter affects the object.