如何从threejs应用程序导出变形改变的网格?

问题描述

我正在尝试自定义一个网格，然后使用 Threejs 的 gltfExporter 将其导出，但是它仍然导出所有变形/形状键，我想在最终导出网格中删除它们.

I'm trying to customize a mesh and then export it by using gltfExporter from Threejs, however it still exports with all morph/shape keys attached, I would like to remove them in the final export mesh.

克隆场景/网格不起作用.

Cloning the scene / mesh didn't work.

function exportModel() {
    var exporter = new THREE.GLTFExporter();
    if (!gltfExportEnabled) gltfExporterConfig.binary = false;

    var finalRenderModel = mainScene.children[2];
    // Remove Morph Targets
    if (!!removeExportMorphs) {
        // finalRenderModel.children[0].children[1].morphTargetDictionary = [];
        // finalRenderModel.children[0].children[1].morphTargetInfluences = [];
    }
    exporter.parse([finalRenderModel], function(gltf) {
        if (!!gltfExportEnabled) generateDownload([gltf], exportFileName + ".glb");
    }, gltfExporterConfig);
}

var generateDownload = (function() {
    var a = document.createElement("a");
    document.body.appendChild(a);
    a.style = "display: none";
    return function(data, name) {
        var blob = new Blob(data, { type: "octet/stream" }),
            url = window.URL.createObjectURL(blob);
        a.href = url;
        a.download = name;
        a.click();
        window.URL.revokeObjectURL(url);
    };
}());

网格被导出并附有所有变形/形状键或不导出

Mesh gets exported with all morphs/shape keys attached or does not get exported

推荐答案

如果你额外执行这段代码是否有帮助:

Does it help if you additionally execute this code:

finalRenderModel.children[0].children[1].geometry.morphAttributes = {};

变形属性被分配给几何体.Mesh.morphTargetInfluences 和 Mesh.morphTargetDictionary 在创建 Mesh 的新实例时基于这些几何数据生成.

Morph attributes are assigned to the geometry. Mesh.morphTargetInfluences and Mesh.morphTargetDictionary are generated based on these geometry data when a new instance of Mesh is created.

three.js R107

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