mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-24 06:14:01 +08:00
Chris Tate
f818e8fb89
- Compile mesh, line, and point picking with perspective and orthographic camera rays. - Preserve JavaScript override arguments, array identity, and native subclass values across checked calls. - Specialize package class helpers and handle unsupported JSDoc namepaths.
29 lines
1.8 KiB
JavaScript
29 lines
1.8 KiB
JavaScript
import { Line } from 'three/src/objects/Line.js';
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import { LineSegments } from 'three/src/objects/LineSegments.js';
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import { LineLoop } from 'three/src/objects/LineLoop.js';
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import { Points } from 'three/src/objects/Points.js';
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import { BufferGeometry } from 'three/src/core/BufferGeometry.js';
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import { Float32BufferAttribute } from 'three/src/core/BufferAttribute.js';
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import { LineBasicMaterial } from 'three/src/materials/LineBasicMaterial.js';
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import { PointsMaterial } from 'three/src/materials/PointsMaterial.js';
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import { Raycaster } from 'three/src/core/Raycaster.js';
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import { Vector3 } from 'three/src/math/Vector3.js';
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const geometry = new BufferGeometry();
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geometry.setAttribute('position',new Float32BufferAttribute([-1,0,-5,1,0,-5,1,2,-5,-1,2,-5],3));
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const ray = new Raycaster(new Vector3(0,0.1,0),new Vector3(0,0,-1));
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ray.params.Line.threshold = 0.2;
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for (const line of [new Line(geometry,new LineBasicMaterial()), new LineSegments(geometry,new LineBasicMaterial()), new LineLoop(geometry,new LineBasicMaterial())]) {
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line.updateMatrixWorld();
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const hit = ray.intersectObject(line);
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console.log('line', line.type, hit.length, hit[0].distance, hit[0].index, hit[0].point.x, hit[0].point.y, hit[0].object === line);
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}
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const pg = new BufferGeometry(); pg.setAttribute('position',new Float32BufferAttribute([0,0,-5,1,0,-5,0,0,-3],3));
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const points = new Points(pg,new PointsMaterial()); points.updateMatrixWorld();
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ray.params.Points.threshold = 0.2;
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const hits = ray.intersectObject(points);
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console.log('points', hits.length, hits[0].distance, hits[1].distance, Number(hits[0].distanceToRay).toFixed(4), hits[0].index, hits[0].object === points);
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ray.params.Points.threshold = 0.05;
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console.log('threshold', ray.intersectObject(points).length);
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pg.setIndex([0,1]); ray.params.Points.threshold = 0.2;
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console.log('indexed', ray.intersectObject(points).length);
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