mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-23 06:10:02 +08:00
Chris Tate
a07998f667
* Expand static three.js workflows and host integration * Preserve JavaScript class state in static three.js workflows * Preserve inferred JavaScript behavior across static workflows * Preserve inferred callables and native compatibility boundaries * Retain annotated JavaScript factory exports and bootstrap-safe call spreads * Preserve Buffer and child callback identities in static packages * Clarify JavaScript symbol spread support
59 lines
3.6 KiB
JavaScript
59 lines
3.6 KiB
JavaScript
import { BoxGeometry, BufferGeometry, CircleGeometry, ConeGeometry, CylinderGeometry, DodecahedronGeometry, Float16BufferAttribute, Float32BufferAttribute, IcosahedronGeometry, InstancedBufferAttribute, InstancedInterleavedBuffer, InterleavedBuffer, InterleavedBufferAttribute, Matrix4, OctahedronGeometry, PlaneGeometry, RingGeometry, SphereGeometry, TetrahedronGeometry, TorusGeometry, TorusKnotGeometry, Vector3 } from "three";
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import { computeMorphedAttributes, mergeGeometries, mergeVertices, toCreasedNormals } from "three/addons/utils/BufferGeometryUtils.js";
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import { ConvexGeometry } from "three/addons/geometries/ConvexGeometry.js";
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import { ParametricGeometry } from "three/addons/geometries/ParametricGeometry.js";
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import { RoundedBoxGeometry } from "three/addons/geometries/RoundedBoxGeometry.js";
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// primitive-geometries
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{
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for (const g of [new SphereGeometry(1, 8, 4), new PlaneGeometry(2, 3, 2, 2), new CircleGeometry(1, 8), new CylinderGeometry(1, 1, 2, 8), new ConeGeometry(1, 2, 8), new TorusGeometry(1, 0.2, 4, 8), new TorusKnotGeometry(1, 0.2, 16, 4), new RingGeometry(0.5, 1, 8), new DodecahedronGeometry(), new IcosahedronGeometry(), new OctahedronGeometry(), new TetrahedronGeometry()]) {
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g.computeBoundingBox();
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console.log(g.type, g.attributes.position.count, g.index === null ? 0 : g.index.count, g.boundingBox.getSize(new Vector3()).x.toFixed(3));
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}
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}
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// geometry-processing
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{
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const box = new BoxGeometry();
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const non = box.toNonIndexed();
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non.computeVertexNormals();
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non.computeBoundingSphere();
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console.log('nonindexed', non.index === null, non.attributes.position.count, non.boundingSphere.radius.toFixed(4));
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box.computeTangents();
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console.log('tangent', box.attributes.tangent.itemSize, box.attributes.tangent.getW(0));
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const copy = box.clone();
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copy.attributes.position.setX(0, 7);
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console.log('copy', box.attributes.position.getX(0), copy.attributes.position.getX(0));
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const points = new BufferGeometry().setFromPoints([new Vector3(), new Vector3(1, 2, 3)]);
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console.log('points', points.attributes.position.count);
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}
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// geometry-utils
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{
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const g = mergeGeometries([new BoxGeometry(), new BoxGeometry().translate(2, 0, 0)], true);
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console.log('merge', g.attributes.position.count, g.groups.length, mergeVertices(g).attributes.position.count);
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console.log('crease', toCreasedNormals(new BoxGeometry(), Math.PI / 3).attributes.normal.count);
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}
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// convex-parametric
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{
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const points = [new Vector3(), new Vector3(1, 0, 0), new Vector3(0, 1, 0), new Vector3(0, 0, 1)];
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console.log('convex', new ConvexGeometry(points).attributes.position.count);
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const g = new ParametricGeometry((u, v, target) => target.set(u, v, u * v), 2, 2);
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console.log('parametric', g.attributes.position.count, g.index.count);
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console.log('rounded', new RoundedBoxGeometry(1, 1, 1, 1, 0.1).attributes.position.count);
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}
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// interleaved-attributes
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{
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const data = new InterleavedBuffer(new Float32Array([1, 2, 3, 4, 5, 6, 7, 8]), 4);
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const position = new InterleavedBufferAttribute(data, 3, 0);
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position.setXYZ(1, 8, 9, 10);
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position.applyMatrix4(new Matrix4().makeTranslation(1, 2, 3));
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console.log('interleaved', position.count, position.getX(1), position.getY(1), data.array[7]);
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console.log('instance', new InstancedBufferAttribute(new Float32Array([1, 2]), 1, false, 2).meshPerAttribute, new InstancedInterleavedBuffer(new Float32Array([1, 2]), 2, 3).meshPerAttribute);
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const half = new Float16BufferAttribute([0, 0, 0], 3);
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half.setXYZ(0, 1.5, -2, 0.25);
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console.log('half', half.getX(0), half.getY(0), half.getZ(0));
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}
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