mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-23 06:10:02 +08:00
Chris Tate
4d022037c3
* feat: support static buffer constructors and prototype methods - Preserve typed-array constructor identity and shared storage across JavaScript class APIs. - Support chained indexed assignments and mutable prototype methods with native receiver dispatch. - Compile Three.js geometry merging, instancing, and keyframe interpolation without a JavaScript engine. * fix: preserve native collection and dispatch semantics - Preserve typed-array identity in collections and JavaScript argument evaluation. - Keep symbol-backed fields and unreachable methods on their existing static paths. - Restore compiler bootstrapping and deferred class diagnostics. * fix: preserve inferred returns in native compilation - Update recorded return statements in place so native compilation preserves mixed JavaScript return values. * test: update inferred array coverage expectations - Recognize heterogeneous writes supported by shared JavaScript array storage.
27 lines
1.5 KiB
JavaScript
27 lines
1.5 KiB
JavaScript
import { BoxGeometry, InstancedMesh, InterpolateDiscrete, Matrix4, MeshBasicMaterial, NumberKeyframeTrack, Vector3 } from 'three';
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import { mergeGeometries, mergeVertices } from 'three/addons/utils/BufferGeometryUtils.js';
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const first = new BoxGeometry(1, 1, 1);
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const second = new BoxGeometry(1, 1, 1).translate(2, 0, 0);
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const merged = mergeGeometries([first, second]);
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const welded = mergeVertices(merged);
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console.log(merged.getAttribute('position').count, welded.getAttribute('position').count);
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console.log(welded.getAttribute('position').array.constructor === Float32Array);
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console.log(welded.index.array.constructor === Uint16Array, welded.index.count);
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console.log(welded.getAttribute('position').getX(24));
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const instances = new InstancedMesh(new BoxGeometry(1, 1, 1), new MeshBasicMaterial(), 3);
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const transform = new Matrix4();
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for (let i = 0; i < 3; i++) instances.setMatrixAt(i, transform.makeTranslation(i * 2, 0, 0));
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instances.computeBoundingBox();
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console.log(instances.boundingBox.getSize(new Vector3()).x, instances.instanceMatrix.array[28]);
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instances.getMatrixAt(2, transform);
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console.log(transform.elements[12]);
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const track = new NumberKeyframeTrack('.position[x]', [0, 1], [0, 10]);
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const interpolant = track.createInterpolant();
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console.log(track.times.constructor === Float32Array, track.values.constructor === Float32Array);
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console.log(interpolant.evaluate(0.25)[0], interpolant.evaluate(0.75)[0]);
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track.setInterpolation(InterpolateDiscrete);
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console.log(track.createInterpolant().evaluate(0.5)[0]);
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