Michael Dawson-Haggerty

Hey, `sweep_polygon` isn't as well tested as `extrude_polygon`, this seems likely to just be bug and I agree the behavior of sweep and extrude for a single segment seem like...

Ah yeah it could be the scale and opengl's z_near/z_far. Scaling to a unit bounding box might addresses this (or maybe we could handle it in `set_camera`). Are the holes...

Hey Shawn, if you want the intersection of two Path3D objects like that you probably need to project them to 2D (probably use a rotation around the shared line axis...

Thanks for the example! That is bizarre- it looks like the ray is definitely hitting but neither embree nor the native raytracer see any hits. I'll look in to it....

By the way, the reason this was so screwy was because that test mesh had face normals that were all zero. I added some logic (in and around https://github.com/mikedh/trimesh/commit/177123b6f8fe32ed51ef834acbc7b3965a19777a) where...

Closing for now; feel free to re- open if you see it again.

Thanks for the report! Which ray engine is this with? Can you share the minimal example giving these results?

Hey, yeah I was probably worried about breaking someone's importers as it's not defined all that well: paulbourke.net/dataformats/obj/colour.html Happy to take PR's! Maybe the ideal behavior is: - if alpha...

Hey, GLB can contain multiple geometries and a scene graph, so the return type is a `trimesh.Scene` to contain that information. If you run the `pyrender` scene conversion it should...

I think you want: `scene = pyrender.Scene.from_trimesh_scene(fuz_trimesh)`