Model top view projection wire frame

How does Here realize the drawing of the model top view projection wire frame, the picture is as follows, I hope to get a good solution, thank you

I don’t think it’s clear what kind of effect you are referring to. Do you mind elaborating in more detail?

That is the red wire frame at the bottom of the model. How is it drawn?

One way to compute this line: Project all points onto a plane and then compute the convex hull around it.


Is there any relevant projection algorithm available?thanks

Try it with THREE.Plane.projectPoint().

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