Function toBufferGeometryData

Convert a ShapeMesh into BufferGeometry-compatible typed arrays.

The returned arrays can be used directly with Three.js:

const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.BufferAttribute(data.position, 3));
geo.setAttribute('normal', new THREE.BufferAttribute(data.normal, 3));
geo.setIndex(new THREE.BufferAttribute(data.index, 1));
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