feat(All):Initial

2025-10-04 23:36:07 +08:00
commit 2b4e5d2668
1321 changed files with 415958 additions and 0 deletions
@@ -0,0 +1,60 @@
+import {
+	BufferGeometry,
+	BufferAttribute,
+} from 'three';
+import { MeshBVH } from 'three-mesh-bvh';
+
+onmessage = function ( { data } ) {
+	let prevTime = performance.now();
+	function onProgressCallback( progress ) {
+		const currTime = performance.now();
+		if ( currTime - prevTime >= 10 || progress === 1.0 ) {
+			postMessage({
+				error: null,
+				serialized: null,
+				position: null,
+				progress,
+			});
+			prevTime = currTime;
+		}
+	}
+
+	const { index, position, options } = data;
+	try {
+		const geometry = new BufferGeometry();
+		geometry.setAttribute( 'position', new BufferAttribute( position, 3, false ) );
+		if ( index ) {
+			geometry.setIndex( new BufferAttribute( index, 1, false ) );
+		}
+
+		if ( options.includedProgressCallback ) {
+			options.onProgress = onProgressCallback;
+		}
+
+		if ( options.groups ) {
+			const groups = options.groups;
+			for ( const i in groups ) {
+				const group = groups[ i ];
+				geometry.addGroup( group.start, group.count, group.materialIndex );
+			}
+		}
+
+		const bvh = new MeshBVH( geometry, options );
+		const serialized = MeshBVH.serialize( bvh, { copyIndexBuffer: false } );
+
+		postMessage( {
+			error: null,
+			serialized,
+			position,
+			progress: 1,
+		}, [ serialized.index.buffer, position.buffer, ...serialized.roots ] );
+
+	} catch ( error ) {
+		postMessage( {
+			error,
+			serialized: null,
+			position: null,
+			progress: 1,
+		} );
+	}
+};