Curve Endpoints Node #89215

New Issue

Hans Goudey · 2021-06-16T21:29:12+02:00

Hans Goudey commented

2021-06-16 21:29:12 +02:00

This node is somewhat similar to the "Curve to Points" node, but outputs points from the start and end of every spline in the input geometry.
This would be useful for instancing specific caps on target curves in combination with the curve to mesh node, or creating points in combination with the trim curve node.

Details

The output points contain attributes copied from the curve splines and points, as well as tangent, normal, and rotation attributes.
The node is separate from Curve to Points because the operation is quite different (no sampling required), the workflow would be simpler, and because performance should be much better.

Related Nodes

#87423 (Trim Curve Node)
D11539: Geometry Nodes: Curve to Points Node

Further Questions

Having "End" in the title of the node might not be ideal, since the node also outputs "Start" points. But the word sort of has two meanings.

Implementation
The implementation would basically be a much simpler version of the curve to points node, without any interpolation or sampling. It would create two point clouds with the required attributes.

{[F10175819](https://archive.blender.org/developer/F10175819/image.png) size=full} This node is somewhat similar to the "Curve to Points" node, but outputs points from the start and end of every spline in the input geometry. This would be useful for instancing specific caps on target curves in combination with the curve to mesh node, or creating points in combination with the trim curve node. **Details** * The output points contain attributes copied from the curve splines and points, as well as tangent, normal, and rotation attributes. * The node is separate from Curve to Points because the operation is quite different (no sampling required), the workflow would be simpler, and because performance should be much better. **Related Nodes** * #87423 (Trim Curve Node) * [D11539: Geometry Nodes: Curve to Points Node](https://archive.blender.org/developer/D11539) **Further Questions** * Having "End" in the title of the node might not be ideal, since the node also outputs "Start" points. But the word sort of has two meanings. **Implementation** The implementation would basically be a much simpler version of the curve to points node, without any interpolation or sampling. It would create two point clouds with the required attributes.

Hans Goudey commented

2021-06-16 21:29:12 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'