This effect creates additional paths by interpolating between two sub-paths. A Trajectory (control) path dictates where the additional paths are placed. Note: Only the first and last sub-paths are used.
The total number of paths (including the two sub-paths) can be specified by the Steps parameter. An additional option Equidistant spacing determines if the nodes of the Trajectory path are used in the interpolation. If the option Equidistant spacing is checked, the additional paths are spaced evenly along the Trajectory path. If it is not checked, the additional paths are divided between the intermediate nodes (see following figure).
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