在SceneKit中支持Collada / DAE模型的要求是什么？ [英] What are the requirements for supporting Collada/DAE models in SceneKit?

问题描述

我收到了来自几个不同的3D创作工具（Rhino，Blender，Cinema4D等）的Collada（DAE）文件，并发现有时模型无法加载。模型无法加载时，Xcode不提供任何信息。它只是显示一条警告，上面写着文件无法打开。

I have received Collada (DAE) files from several different 3D authoring tools (Rhino, Blender, Cinema4D, etc) and have found that sometimes the models fail to load. Xcode does not provide any information when a model fails to load. It simply shows an alert that says "The file couldn't be opened."

是否有任何要求 - 特定的DAE版本，有限的功能子集等 - 我的3D设计师在为我导出DAE文件时应该注意什么？

Are there any requirements -- specific DAE version, limited subset of features, etc -- that my 3D designer should be aware of when exporting a DAE file for me?

我当然搜索了Apple的文档而没有找到有关DAE要求的任何信息。

I have, of course, searched Apple's docs without finding any information on DAE requirements.

推荐答案

避免使用Collada 1.5版（据我所知，只有Cinema4D默认导出为1.5，但它有一个导出1.4的选项）。 SceneKit不支持Collada 1.5。
然后，根据我对Maya和3DSMax的经验，openCollada导出器（免费插件）比内置导出器提供更好的结果。

Avoid Collada version 1.5 (as far as I know only Cinema4D exports to 1.5 by default but it has an option to export 1.4). Collada 1.5 is not supported by SceneKit. Then, in my experience with Maya and 3DSMax, the "openCollada" exporter (free plugin) gives better results than the built-in exporters.

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