Use the Release from Edge node to release rays from positions along a set of edges in a 3D geometry.

See Release for information on the following sections: Release Times, Ray Direction Vector, Initial Ray Frequency, Initial Phase, Initial Intensity, Initial Radii of Curvature, Total Source Power, Initial Polarization, and Initial Value of Auxiliary Dependent Variables.

Select an Initial position — Mesh based (the default), Uniform distribution, or Density. Mesh based and Density have the same settings as described for the Release node. If Uniform distribution is selected, enter the Number of rays per release N (dimensionless). The union of the selected edges is divided into N segments of approximately equal length, and a ray is released from the middle of each segment.