Bisected chambered nautilus
Preparing Bisected chambered nautilus…
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Evidence & model coverage
500,000 web triangles; 21 supplied geometry groups before runtime flattening. Generic mesh chunks are not physical components.
Changes: Texture cap 512px (JPEG 85 for opaque images, PNG for transparency); duplicate/unused data removed; welded vertices; Draco encoding; supplied mesh-bearing nodes retained.
Credit: RISD Nature Lab. Bisected chambered nautilus. https://sketchfab.com/3d-models/chambered-nautilus-ad379c7c5ca345ac801bd249d864c94f. CC BY 4.0. Geometry and embedded supplied textures from the same downloaded package; no outside photographs imported.
Original model and provenance · CC BY 4.0 · Subject information · Download adapted GLB
Display size is normalized, not a measurement tool. Hidden interiors and unmodeled mechanisms are not inferred.
File audit and caveats
{
"sourceDownloadURL": null,
"textures": [
{
"name": "",
"mime": "image/jpeg",
"width": 512,
"height": 512,
"bytes": 74780
}
],
"estimatedTextureRGBABytes": 1048576,
"bytes": 49644784,
"sha256": "9e3b1f6a821a34a42e8eaa4dfd78cc488c3895946371fe2b80331900c9bacb95",
"triangles": 500000,
"webBytes": 3496528,
"webSha256": "acf76da9dcdd70a6776fda5295d88ea35c11d46858de561097b9e731f1db7487",
"webMeshes": 21,
"sourceTriangles": 500000,
"sourceGroups": [
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"Object_9",
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"Object_11",
"Object_12",
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"Object_14",
"Object_15",
"Object_16",
"Object_17",
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"Object_20",
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],
"sourceLicense": "CC-BY-4.0 (http://creativecommons.org/licenses/by/4.0/)"
}A scanned bisected Nautilus pompilius shell. Keep the specimen cut clearly identified. Chambers are visible, but a living animal's soft anatomy is not supplied.