[英]Three.js: how to create polygon/polyhedron?
除此方法外,还有其他在Three.js中创建多边形/多面体的方法吗?
var polyhedronPts = []; polyhedronPts.push( new THREE.Vector2 ( -100, 600 ) ); polyhedronPts.push( new THREE.Vector2 ( 300, 600 ) ); polyhedronPts.push( new THREE.Vector2 ( 600, -100 ) ); polyhedronShape = new THREE.Shape( polyhedronPts ); var extrudeSettings = {amount: 20}; // bevelSegments: 2, steps: 2 , bevelSegments: 5, bevelSize: 8, bevelThickness:5 var geometry = new THREE.ExtrudeGeometry( polyhedronShape, extrudeSettings ); mesh = THREE.SceneUtils.createMultiMaterialObject( geometry, [ new THREE.MeshBasicMaterial( { color: 0x00cc00 } ), new THREE.MeshBasicMaterial( { color: 0xff3333, wireframe: true, transparent: true } ) ] ); scene.add( mesh );
为什么不使用http://threejs.org/docs/#Reference/Extras.Geometries/PolyhedronGeometry
var verticesOfCube = [
-1,-1,-1, 1,-1,-1, 1, 1,-1, -1, 1,-1,
-1,-1, 1, 1,-1, 1, 1, 1, 1, -1, 1, 1,
];
var indicesOfFaces = [
2,1,0, 0,3,2,
0,4,7, 7,3,0,
0,1,5, 5,4,0,
1,2,6, 6,5,1,
2,3,7, 7,6,2,
4,5,6, 6,7,4
];
var geometry = new THREE.PolyhedronGeometry( verticesOfCube, indicesOfFaces, 6, 2 );
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