All points are split
biaozeng_0-1670335080194.pngbiaozeng_1-1670335087353.pngbiaozeng_2-1670335091150.png
Thanks for your report, we'll take a look and get back to you as soon as possible!
Best,Simon
A quick investigation showed that this is happening because all vertex attributes include vertex normals currently share one index. If you would enable shared/smooth vertex normals, the faces should have shared points.
I've logged an issue for improvement: https://github.com/Esri/palladio/issues/200
