Unity运行时程序动态加载外部.fbx.obj模型文件

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项目中有用到这个需求，为实现Unity程序运行状态下，从程序外部动态加载fbx或obj模型,所以研究了一下，目前TriLib比较靠谱，好用，多平台适用。会提供 下载插件地址。

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1.效果展示

使用的插件 下载插件地址

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2、添加插件至Unity工程

将Trilib压缩包内容解压到Unity工程Assets文件夹下，返回工程等待加载，完成后即可在工程目录下看到Trilib目录，包含脚本以及各类License。Trilib插件包含了示例场景，我们的工程就从示例入手。

先择模型，看效果。

3、使用步骤

代码调用示例

        /// <summary>
        /// Loads the "Models/TriLibSample.obj" Model using the given AssetLoaderOptions.
        /// </summary>
        /// <remarks>
        /// You can create the AssetLoaderOptions by right clicking on the Assets Explorer and selecting "TriLib->Create->AssetLoaderOptions->Pre-Built AssetLoaderOptions".
        /// </remarks>
        private void Start()
        {
            var assetLoaderOptions = AssetLoader.CreateDefaultLoaderOptions();
            AssetLoader.LoadModelFromFile(ModelPath, OnLoad, OnMaterialsLoad, OnProgress, OnError, null, assetLoaderOptions);
        }

        /// <summary>
        /// Called when any error occurs.
        /// </summary>
        /// <param name="obj">The contextualized error, containing the original exception and the context passed to the method where the error was thrown.</param>
        private void OnError(IContextualizedError obj)
        {
            Debug.LogError($"An error occurred while loading your Model: {obj.GetInnerException()}");
        }

        /// <summary>
        /// Called when the Model loading progress changes.
        /// </summary>
        /// <param name="assetLoaderContext">The context used to load the Model.</param>
        /// <param name="progress">The loading progress.</param>
        private void OnProgress(AssetLoaderContext assetLoaderContext, float progress)
        {
            Debug.Log($"Loading Model. Progress: {progress:P}");
        }

        /// <summary>
        /// Called when the Model (including Textures and Materials) has been fully loaded.
        /// </summary>
        /// <remarks>The loaded GameObject is available on the assetLoaderContext.RootGameObject field.</remarks>
        /// <param name="assetLoaderContext">The context used to load the Model.</param>
        private void OnMaterialsLoad(AssetLoaderContext assetLoaderContext)
        {
            Debug.Log("Materials loaded. Model fully loaded.");
        }

        /// <summary>
        /// Called when the Model Meshes and hierarchy are loaded.
        /// </summary>
        /// <remarks>The loaded GameObject is available on the assetLoaderContext.RootGameObject field.</remarks>
        /// <param name="assetLoaderContext">The context used to load the Model.</param>
        private void OnLoad(AssetLoaderContext assetLoaderContext)
        {
            Debug.Log("Model loaded. Loading materials.");
        }

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总结

以上就是使用trilib2.1.7 动态加载fbx模型。有问题请留言。