threepipe/lib/plugins/import/STLLoadPlugin.js

A 3D viewer framework built on top of three.js in TypeScript with a focus on quality rendering, modularity and extensibility.

import { Importer } from '../../assetmanager';
import { STLLoader } from 'three/examples/jsm/loaders/STLLoader.js';
import { Color, Mesh } from 'three';
import { PhysicalMaterial } from '../../core';
import { BaseImporterPlugin } from '../base/BaseImporterPlugin';
/**
 * Adds support for loading `.stl`, `model/stl` files and data uris.
 * @category Plugins
 */
export class STLLoadPlugin extends BaseImporterPlugin {
    constructor() {
        super(...arguments);
        this._importer = new Importer(class extends STLLoader {
            transform(res, _) {
                if (!res.attributes?.normal)
                    res.computeVertexNormals();
                // todo set mesh name from options/path
                return res ? new Mesh(res, new PhysicalMaterial({
                    color: new Color(1, 1, 1),
                    vertexColors: res.hasAttribute('color'),
                })) : undefined;
            }
        }, ['stl'], ['model/stl', 'model/x.stl-binary', 'model/x.stl-ascii'], false);
    }
}
STLLoadPlugin.PluginType = 'STLLoadPlugin';
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