问题描述
我有一个算法生成的SceneKit场景，我希望能够将其导出为Collada .dae文件，例如在iBooks Author中使用。因为SceneKit可以导入Collada文件，所以我认为也许也可以导出它们，但是在API中找不到任何内容。
I have an algorithmically-generated SceneKit scene that I'd like to be able to export as a Collada .dae file, e.g. for use in iBooks Author. Since SceneKit can import Collada files, I thought there might be a way to export them too, but couldn't find anything in the API.
有没有更简单的方法这样做不写我自己的导出器，它遍历每个节点/几何体等等？
Is there an easier way of doing this short of writing my own exporter that iterates over every node/geometry etc?
推荐答案
SCNScene 具有仅OS X的方法，用于导出DAE。请记住，虽然DAE不能处理SceneKit的所有功能。另请注意，此方法在iOS中不可用。 （不过，即使您正在为iBooks Author准备内容，也不必担心。）
SCNScene has a writeToURL:options:delegate:progressHandler: OS X-only method that exports DAE. Keep in mind that DAE doesn't handle all features of SceneKit, though. Also note this method isn't available in iOS. (Though if you're preparing content for iBooks Author that's probably not a concern.)
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