【发布时间】：2019-08-17 04:43:42
【问题描述】：
我现在可以正常加载 ascii ply 文件，但它有纹理，无论我如何配置，我似乎都无法加载它。
cameraMain = new THREE.Camera(8, MainWidth / MainHeight, 1, 10000);
sceneMain = new THREE.Scene();
ambientLightMain = new THREE.AmbientLight(0x202020);
directionalLightMainRight = new THREE.DirectionalLight(0xffffff, 0.5);
directionalLightMainLeft = new THREE.DirectionalLight(0xffffff, 0.5);
pointLightMain = new THREE.PointLight(0xffffff, 0.3);
directionalLightMainRight.position.x = dlpx;
directionalLightMainRight.position.y = dlpy;
directionalLightMainRight.position.z = dlpz;
directionalLightMainRight.position.normalize();
directionalLightMainLeft.position.x = -dlpx;
directionalLightMainLeft.position.y = dlpy;
directionalLightMainLeft.position.z = dlpz;
directionalLightMainLeft.position.normalize();
pointLightMain.position.x = plpx;
pointLightMain.position.y = plpy;
pointLightMain.position.z = plpz;
sceneMain.addLight(ambientLightMain);
sceneMain.addLight(directionalLightMainRight);
sceneMain.addLight(directionalLightMainLeft);
sceneMain.addLight(pointLightMain);
rendererMain = new THREE.WebGLRenderer();
texture = THREE.ImageUtils.loadTexture('3D/'+ mainURL +'.jpg', {}, function() {
rendererMain.render(sceneMain);
});
rendererMain.domElement.style.backgroundColor = backgroundColor;
rendererMain.setSize(MainWidth, MainHeight);
rendererMain.domElement.addEventListener('DOMMouseScroll', onRendererMainScroll, false);
rendererMain.domElement.addEventListener('mousewheel', onRendererMainScroll, false);
rendererMain.domElement.addEventListener('dblclick', onRendererMainDblClick, false);
rendererMain.domElement.addEventListener('mousedown', onRendererMainMouseDown, false);
$("#viewerMain").append(rendererMain.domElement);
window.addEventListener('mousemove', onMouseMove, false);
window.addEventListener('mouseup', onMouseUp, false);
那段代码初始化模型。其中一些不需要用于问题目的，它具有缩放、旋转等代码。我知道还有另一行，我已将其注释掉，但由于某种原因它不会在这里显示，所以我会单独做。
material = new THREE.MeshBasicMaterial({map: texture});
那一行在 loadTexture 代码之后。
其余部分通过 loadPly 函数加载
var geometryMain = new THREE.Geometry();
for (i in event.data.content[0])
geometryMain.vertices.push(new THREE.Vertex(new THREE.Vector3(event.data.content[0][i][0], event.data.content[0][i][1], event.data.content[0][i][2])));
for (i in event.data.content[1])
geometryMain.faces.push(new THREE.Face3(event.data.content[1][i][0], event.data.content[1][i][1], event.data.content[1][i][2]));
geometryMain.computeCentroids();
geometryMain.computeFaceNormals();
mainModel = new THREE.Mesh(geometryMain, new THREE.MeshLambertMaterial({color:0xffffff, shading:THREE.FlatShading}));
sceneMain.addObject(mainModel);
mainModel.overdraw = true;
mainModel.doubleSided = true;
我尝试调整 THREE.mesh() 部分以包含材料，但它破坏了一切。我已经尝试将 map:material 添加到 MeshLambertMaterial 中，也是不行的。任何人有任何见解？抱歉，如果这太复杂了，但我还远远不够了解这一点而无法有效。
如果我添加
map:THREE.ImageUtils.loadTexture('3D/'+ mainURL +'.jpg')
到 THREE.Mesh() 行，我得到 p>
.WebGLRenderingContext: GL ERROR :GL_INVALID_OPERATION : glDrawElements: 尝试访问属性 2 中超出范围的顶点
【问题讨论】：
标签： javascript three.js