功能与特性

npm install @aspose/3d

{
  "compilerOptions": {
    "target": "ES2020",
    "module": "commonjs",
    "moduleResolution": "node",
    "esModuleInterop": true,
    "strict": true
  }
}

import { Scene } from '@aspose/3d';
import { ObjLoadOptions } from '@aspose/3d/formats/obj';
import { GltfSaveOptions, GltfFormat } from '@aspose/3d/formats/gltf';

import { Scene } from '@aspose/3d';
import { ObjLoadOptions } from '@aspose/3d/formats/obj';

const scene = new Scene();
const options = new ObjLoadOptions();
options.enableMaterials = true;
options.flipCoordinateSystem = false;
options.scale = 1.0;
options.normalizeNormal = true;
scene.open('model.obj', options);

import { Scene } from '@aspose/3d';
import { GltfSaveOptions, GltfFormat } from '@aspose/3d/formats/gltf';

const scene = new Scene();
// ... build or load scene content

const opts = new GltfSaveOptions();
opts.binaryMode = true;
scene.save('output.glb', GltfFormat.getInstance(), opts);

import { Scene, Node, Mesh } from '@aspose/3d';

const scene = new Scene();
scene.open('model.obj');

function visit(node: Node, depth: number = 0): void {
  const indent = '  '.repeat(depth);
  console.log(`${indent}Node: ${node.name}`);
  if (node.entity) {
    console.log(`${indent}  Entity: ${node.entity.constructor.name}`);
  }
  for (const child of node.childNodes) {
    visit(child, depth + 1);
  }
}

visit(scene.rootNode);

import { Scene, Node } from '@aspose/3d';

const scene = new Scene();
const parent = scene.rootNode.createChildNode('chassis');
const wheel = parent.createChildNode('wheel_fl');
wheel.transform.translation.set(0.9, -0.3, 1.4);

import { Scene, Mesh, VertexElementType } from '@aspose/3d';

const scene = new Scene();
scene.open('model.stl');

for (const node of scene.rootNode.childNodes) {
  if (node.entity instanceof Mesh) {
    const mesh = node.entity as Mesh;
    console.log(`Mesh "${node.name}": ${mesh.controlPoints.length} vertices, ${mesh.polygonCount} polygons`);

    const normals = mesh.getElement(VertexElementType.NORMAL);
    if (normals) {
      console.log(`  Normal mapping: ${normals.mappingMode}`);
    }
  }
}

import { Scene, PhongMaterial, LambertMaterial } from '@aspose/3d';
import { ObjLoadOptions } from '@aspose/3d/formats/obj';

const scene = new Scene();
const options = new ObjLoadOptions();
options.enableMaterials = true;
scene.open('model.obj', options);

for (const node of scene.rootNode.childNodes) {
  for (const mat of node.materials) {
    if (mat instanceof PhongMaterial) {
      const phong = mat as PhongMaterial;
      console.log(`  Phong: diffuse=${JSON.stringify(phong.diffuseColor)}, shininess=${phong.shininess}`);
    } else if (mat instanceof LambertMaterial) {
      console.log(`  Lambert: diffuse=${JSON.stringify((mat as LambertMaterial).diffuseColor)}`);
    }
  }
}

import { Scene, Node, PbrMaterial } from '@aspose/3d';
import { Vector3 } from '@aspose/3d';
import { GltfSaveOptions, GltfFormat } from '@aspose/3d/formats/gltf';

const scene = new Scene();
const node = scene.rootNode.createChildNode('sphere');
const mat = new PbrMaterial();
mat.albedo = new Vector3(0.8, 0.2, 0.2);   // red-tinted albedo; albedo starts null, must assign
mat.metallicFactor = 0.0;
mat.roughnessFactor = 0.5;
node.material = mat;

const opts = new GltfSaveOptions();
opts.binaryMode = false;
scene.save('output.gltf', GltfFormat.getInstance(), opts);

import { Scene, Mesh, Vector3, BoundingBox } from '@aspose/3d';

const scene = new Scene();
scene.open('model.obj');

let box = new BoundingBox();
for (const node of scene.rootNode.childNodes) {
  if (node.entity instanceof Mesh) {
    for (const pt of (node.entity as Mesh).controlPoints) {
      box.merge(new Vector3(pt.x, pt.y, pt.z));
    }
  }
}
console.log('Center:', box.center);
console.log('Extents:', box.size);

import { Quaternion, Vector3, Matrix4 } from '@aspose/3d';

const rot = Quaternion.fromEulerAngle(0, Math.PI / 4, 0); // 45° around Y
const mat = new Matrix4();
mat.setTRS(new Vector3(0, 0, 0), rot, new Vector3(1, 1, 1));

import { Scene, AnimationNode, BindPoint } from '@aspose/3d';

const scene = new Scene();
scene.open('animated.dae');   // COLLADA animation import is supported

for (const clip of scene.animationClips) {
  console.log(`Clip: "${clip.name}"`);
  for (const animNode of clip.animations) {          // clip.animations, not clip.nodes
    console.log(`  AnimationNode: ${animNode.name}`);
    for (const bp of animNode.bindPoints) {           // animNode.bindPoints, not animNode.channels
      console.log(`  BindPoint: property="${bp.property.name}", channels=${bp.channelsCount}`);
    }
  }
}

import { Scene } from '@aspose/3d';
import { ObjLoadOptions } from '@aspose/3d/formats/obj';
import * as fs from 'fs';

// Load file into memory, then parse from buffer
const buffer: Buffer = fs.readFileSync('model.obj');
const scene = new Scene();
const options = new ObjLoadOptions();
options.enableMaterials = true;
scene.openFromBuffer(buffer, options);

for (const node of scene.rootNode.childNodes) {
  if (node.entity) {
    console.log(node.name, node.entity.constructor.name);
  }
}

import { Scene } from '@aspose/3d';
import { ObjLoadOptions } from '@aspose/3d/formats/obj';
import { GltfSaveOptions, GltfFormat } from '@aspose/3d/formats/gltf';

function convertObjToGlb(inputPath: string, outputPath: string): void {
  const scene = new Scene();

  const loadOpts = new ObjLoadOptions();
  loadOpts.enableMaterials = true;
  loadOpts.flipCoordinateSystem = false;
  loadOpts.normalizeNormal = true;
  scene.open(inputPath, loadOpts);

  // Report what was loaded
  for (const node of scene.rootNode.childNodes) {
    if (node.entity) {
      console.log(`Loaded: ${node.name} (${node.entity.constructor.name})`);
    }
  }

  const saveOpts = new GltfSaveOptions();
  saveOpts.binaryMode = true; // write .glb instead of .gltf + .bin
  scene.save(outputPath, GltfFormat.getInstance(), saveOpts);

  console.log(`Exported GLB to: ${outputPath}`);
}

convertObjToGlb('input.obj', 'output.glb');

import { Scene, Mesh, VertexElementNormal, VertexElementType } from '@aspose/3d';
import { StlLoadOptions, StlSaveOptions } from '@aspose/3d/formats/stl';

const scene = new Scene();
const loadOpts = new StlLoadOptions();
scene.open('model.stl', loadOpts);

let totalPolygons = 0;
for (const node of scene.rootNode.childNodes) {
  if (node.entity instanceof Mesh) {
    const mesh = node.entity as Mesh;
    totalPolygons += mesh.polygonCount;

    const normElem = mesh.getElement(VertexElementType.NORMAL) as VertexElementNormal | null;
    if (normElem) {
      console.log(`  Normals: ${normElem.data.length} entries, mapping=${normElem.mappingMode}`);
    }
  }
}
console.log(`Total polygons: ${totalPolygons}`);

// Re-export as ASCII STL
const saveOpts = new StlSaveOptions();
saveOpts.binaryMode = false; // ASCII output
scene.save('output_ascii.stl', saveOpts);

import { Scene, Mesh, PbrMaterial, Vector4, Vector3 } from '@aspose/3d';
import { GltfSaveOptions, GltfFormat } from '@aspose/3d/formats/gltf';

const scene = new Scene();
const node = scene.rootNode.createChildNode('floor');

// Build a simple quad mesh (two triangles)
// controlPoints are Vector4 (x, y, z, w) where w=1 for positions
const mesh = new Mesh();
mesh.controlPoints.push(
  new Vector4(-1, 0, -1, 1),
  new Vector4( 1, 0, -1, 1),
  new Vector4( 1, 0,  1, 1),
  new Vector4(-1, 0,  1, 1),
);
mesh.createPolygon([0, 1, 2]);
mesh.createPolygon([0, 2, 3]);
node.entity = mesh;

// Apply a PBR material
const mat = new PbrMaterial();
mat.albedo = new Vector3(0.6, 0.6, 0.6);   // albedo starts null, must assign
mat.metallicFactor = 0.0;
mat.roughnessFactor = 0.8;
node.material = mat;

// Save as JSON glTF
const opts = new GltfSaveOptions();
opts.binaryMode = false;
scene.save('floor.gltf', GltfFormat.getInstance(), opts);
console.log('Scene written to floor.gltf');