Artifacts when exporting about gltfjsx

[drcmda]

gltfjsx doesn't change or modify the data. it just structures it a bit with short access jsx, but the actual buffergeom comes directly from THREE.GLTFLoader. the whole "trick" of this lib is simply that it creates a look-up table. you can doublecheck by rendering:

const gltf = useLoader(GLTFLoader, url)
return <primitive object={gltf.scene} dispose={null} />

which just puts the scene into the graph without touching it. that should give you the same glitches. it's probably related to compression, or there is still some topology problem.

this for instance to me looks like an artifact:

[bitttttten]

Yeah, I see those artifacts in Blender but they look different the ones in the browser. I was a bit confused about how they related to each other, if they did at all, as I don't have much experience with 3d models, blender, gltf.

Okay with <primitive> I get similar artifacts so it is not gltfjsx.

Happy to close this issue then since it's not related :)

[drcmda]

i believe what you see in blender is unrelated because the model is still going to get triangulated in gltf. in blender you have quads and ngons. maybe try triangulating in blender yourself: edit mode, sel all, face > triangulate. perhaps that reveals the topology problem. if you figure it out would be nice to hear what it was b/c i often get the same problems and im a complete beginner with that blender gltf stuff.

[bitttttten]

ahh thanks for the tip regarding triangulate. i noticed one of the vertixes was sticking out, although it didn't seem to fix my problem.

i noticed that the sharp edges were a bit inconsistent, and after playing around with them it seems to be related.

with every edge marked as sharp:

with no smart edges:

both have artifacts of their own so it's not a finished solution but i'll keep digging and let you know if i solve it :)