Hi everyone, Here is my screen from aplication where green color is intersection with clipping plane. [image] Question is how calculate outline vertices of green shape that appears? I have buffer geomerty without indexes.

Hi! There is no out-of-box solution. Maybe this SO answer will give you some ideas: javascript - Three JS - Find all points where a mesh intersects a plane - Stack Overflow

Yep, I readed it. Is possible and how to optimise calculation? I have only vertices without indexes and problem is that this model is large but other models will be huge.

Thanks, I will do that and come back if I succeed.

Ooh that might be a good example to add :thinking:

Here’s a sneak peek of the new mesh bvh demo with a reasonably complicated piece of geometry: https://gkjohnson.github.io/three-mesh-bvh/example/bundle/clippedEdges.html It seems to be about 20-100 times faster to use three-mesh-bvh on this model depending on the hardware / clip direction. Of cour…

have you been succeed? Could you share your experience, please?

NOPE. Not yet. When I do this I will post it here. Please be patient.

Are you taking only vertices coordinates? What type of object do you have? And what loader do you use?

Material clipping plane color and shape outline vertices

Questions

prisoner849 July 19, 2021, 3:12pm 4

Try to combine it with this: Three-mesh-bvh: A plugin for fast geometry raycasting and spatial queries!

Topic		Replies	Views
Creating a cross-section outline Questions geometry	9	5208	February 18, 2021
Get Vertices or Faces/Face index of mesh from Clipping Planes Questions clipping-planes	0	713	March 17, 2022
Build new mesh from clipping plane intersection vertices Questions clipping-planes , intersection , plane	1	344	May 26, 2024
Part of clipped edges is missing when using three-mesh-bvh Questions three-mesh-bvh	0	480	June 9, 2023
Extract geometry from clipping plane? Questions geometry , shaders	0	917	February 8, 2021

Material clipping plane color and shape outline vertices

Related topics