Comments (6)
Thanks for the details!
I didn't create an actual THREE scene, since the scene itself looks fine. Let me know if you would like me to add that.
It would be useful to add a simple scene with a bounding box to inspect the issue more easily.
from three-bvh-csg.
Ok I retooled the example with a scene and a bounding box: https://codepen.io/jakedluhy/pen/YzBJgPp?editors=0010
Unfortunately the zoom/dolly isn't working for the controls (I think because there's a multiple versions of THREE.js issue due to weird Codepen imports). Let me know if you need anything else!
from three-bvh-csg.
Yes looks like there are extra points being added:
The same thing seems to happen with ADDITION and DIFFERENCE:
There are no extra points with INTERSECTION, though:
Commenting out the first performSplitTriangleOperations
removes the excess points so there may be a bug in that section of code. So this at least helps narrow down which point in the operation these points are being generated from. I'll have to dig in more later
from three-bvh-csg.
It looks like this has been happening all the way back to v0.0.3 (didn't check earlier versions) with the SUBTRACTION operation.
However with the ADDITION operation this only started happening in v0.0.12. The extra points were not present in v0.0.11.
from three-bvh-csg.
It looks like this is occurring because the provided geometry contains degenerate triangles with an area of 0, 0, 0 causing the barycoordinate calculations to be incorrect. I think by some measures this may be at odds with the idea that a geometry needs to be watertight / two-manifold but this shouldn't be too big of an issue to handle.
from three-bvh-csg.
Thanks so much for jumping on this!
from three-bvh-csg.
Related Issues (20)
- Planar faces failure HOT 1
- Texture not showing when exporting scene HOT 4
- Performance Issus when two bufferGeometries evaluate HOT 1
- Weird result using Three CSG HOT 2
- New failure case HOT 1
- Fix "isTriDegenerate" function
- Intersecting edges are being incorrectly reported HOT 1
- Any hint to avoid hitting maxDepth? HOT 1
- How to use multiple ExtrudeGeometry holes HOT 2
- Clear cached bounding boxes from result
- Large performance cost for coplanar triangles HOT 13
- I would like to ask, is there anything wrong with my Boolean operation to create geometry? HOT 1
- Result object of csg evaluator doesn't have textures HOT 8
- T-vertices after subtracting mesh from a plane HOT 4
- csg operation error HOT 4
- How to update a CSG Operation HOT 9
- Add a real simple example HOT 3
- Only upload the changed attribute ranges using "updateRange"
- Ensure floating point operations are done on small values where possible
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from three-bvh-csg.