Menu Cells

Shape -> Cluster Interp

The Shape -> Cluster Interp command in the Motion module allows you to set the interpolation type between cluster keys.

Both average and additive interpolation can be divided into three types: Linear, Cardinal, and Weighted.

Procedure

1. Select an object with an active cluster.

2. Choose a command.

Linear Interp

Linear interpolation means the physical points of the deformed object travels in a linear direction.

Cardinal Interp

Cardinal interpolation calculates keyframes on a curved trajectory.

Weight Interp

Weighted interpolation creates one different function curve for each key shape.

Negative values can be used with this option. This allows you to create an inverted shape when using additive shape interpolation; that is, points will move in a negative direction. If the default average shape of interpolation is specified, negative values are assigned a weight of zero.

Note:: Unlike shape animation, all interpolation types can be additive or averaged for clusters. In other words, you can also add two cluster animations from different clusters if some points overlap, even two sets of clusters are already animated, whether with Linear, Cardinal, or Weighted interpolation.

SOFTIMAGE 3D Reference - 19 APR 1996