Reality Composer Pro Release Notes

Review known issues and changes in Reality Composer Pro 3.

Overview

Reality Composer Pro is a standalone app, available for download from the Apple Developer website, and is no longer part of Xcode. Reality Composer Pro requires a Mac with Apple silicon running macOS Tahoe 26.5 or later.

General

Known Issues

  • Asset Generation is only supported on macOS 27. (178159978)

    • Workaround: Update to macOS 27.

Materials and Shaders

Known Issues

  • Imported asset’s shader graph fails on normal map. (184117276)

3D Modeling

Known Issues

  • Adding a Mesh Resource type to the Model Mesh field causes the entity to flicker on screen and primitive geometry shapes to no longer load. (185447536)

    • Workaround: Save the project and relaunch Reality Composer Pro 3.

RCP Assist

Known Issues

  • RCP Assist creates a ShaderGraph (MaterialX 1.38) material instead of Physically Based when explicitly asked to create a Physically Based material type. (184871460)

Scripting and Shaders

Known Issues

  • When using world position in scripts or shaders, Reality Composer Pro content shifts relative to the world origin in shared space apps. (178279067)

    • Workaround: Use relative position, or calculate the relationship of your content to the world origin and adjust your scripts or shaders accordingly.