Three.js Tubes 不够长答案

【问题标题】：Three.js Tubes not long enoughThree.js Tubes 不够长
【发布时间】：2017-12-27 07:44:29
【问题描述】：

我想用线段连接顶点。这就是我用简单的线条得到的。它工作正常。

let line2 = (from : Vector3, to : Vector3) : THREE.Line => {

    var lineGeometry = new THREE.BufferGeometry();

    var positions = new Float32Array( 3 * 2 );  

    positions[0]=to.x;
    positions[1]=to.y;
    positions[2]=to.z; 

    positions[3]=from.x;
    positions[4]=from.y;
    positions[5]=from.z; 

    lineGeometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );

    let lineMaterial = new THREE.LineBasicMaterial( { color: 0x0f35ff } ); 

    let line = new THREE.Line(lineGeometry, lineMaterial); 

    return line;

};

但是当我切换到管子时出现问题，长度变短了。

管的代码，位置数据相同。

let tube = (from : Vector3, to : Vector3) : THREE.Mesh => {

    let path = new THREE.LineCurve3(to, from);  

    let tubeGeometry = new THREE.TubeGeometry( path, 32, 0.05, 8, true);

    let material = new THREE.MeshBasicMaterial({color:0x3212ac});  

    let mesh = new THREE.Mesh(tubeGeometry, material);

    return mesh;

};

【问题讨论】：

标签： typescript three.js

【解决方案1】：

罪魁祸首似乎是管端的“关闭”，如果启用此三不再生成圆柱体的最终段（尝试将 false 作为最终参数传递给 TubeGeometry 构造函数以查看差异） .

作为快速修复，在TubeBufferGeometry 源的generateBufferData() 方法中，尝试类似

//generateSegment((closed === false) ? tubularSegments : 0);
generateSegment(tubularSegments);
if (closed === true)
    generateSegment(0);

【讨论】：