--- title: "WWDC26: Extend Reality Composer Pro 3 functionality with Xcode | Apple" url: https://daily.dev/posts/wwdc26-extend-reality-composer-pro-3-functionality-with-xcode-apple-yhbm8kivo source_url: https://www.youtube.com/watch?v=XHKkrHrNlNo type: video:youtube source: "Apple Developer" published: 2026-06-08T21:25:22.134Z updated: 2026-06-08T21:34:04.513Z tags: ["swift", "xcode", "spatial-computing"] reading_time: 22 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # WWDC26: Extend Reality Composer Pro 3 functionality with Xcode | Apple **[Apple Developer](https://daily.dev/sources/appledeveloper)** · 22 min read · 0 upvotes · 0 comments ## Summary A WWDC26 session walkthrough on extending Reality Composer Pro 3 with custom Xcode plug-ins. Covers building custom RealityKit components and systems that run live inside the editor, allowing artists to tweak properties in real time without rebuilding the app. Also demonstrates adding custom animation actions to the sequencer timeline and exposing custom nodes to the Script Graph visual scripting system using the @Scriptable macro. The workflow involves a shared git repo between an Xcode project and a Reality Composer Pro project, with a plugin framework bridging the two. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#swift](https://daily.dev/tags/swift), [#xcode](https://daily.dev/tags/xcode), [#spatial-computing](https://daily.dev/tags/spatial-computing) [View this post on daily.dev](https://daily.dev/posts/wwdc26-extend-reality-composer-pro-3-functionality-with-xcode-apple-yhbm8kivo)