I’m trying to truncate a geometry object as shown in the gif below:
How would I achieve this?
My current idea is:
- find an equation for the desired truncation plane
- find equations for the edges being truncated and their intersections with the truncating plane
- remove the vertex that was truncated from the vertex array
- add three new vertices into the vertex array (intersection points)
- update the faces array to include the newly created vertices
Is this the best approach or is there an easier way?
Thanks for your response.
Since the clipping is applied to the material in those examples, though, it constantly clips a different portion of the geometry as it is transformed. How would I go about clipping the actual geometry so that I can apply transformations without the clip changing?
I actually came across this comment of yours on operations with geometry and it seems like this library may do what I want. I think all I would need to do is subtract an appropriate plane mesh from the tetrahedron mesh to produce a new, truncated mesh.