Physically credible rendering as a standard
Until visionOS 26, achieving soft shadows or pre-baked lighting in RealityKit required custom solutions. With visionOS 27, Apple has turned these techniques into officially supported APIs. According to detailed session analysis published by Blake Crosley, RealityKit now gains soft shadows, baked lightmaps, projective textures that spill onto real walls, cloth simulation, navigation meshes for characters, gaussian splats, and ray-traced acoustics.
Reality Composer Pro 3 and the build-cycle-free workflow
Reality Composer Pro 3 integrates these capabilities into an authoring workflow without the need for rebuild cycles: live preview on the headset, prototypes and instances, node-based graphs, and an AI assistant for 3D content generation. Xcode plug-ins now allow running custom components directly inside the authoring tool — a developer can attach the Xcode debugger and hit breakpoints in plug-in code while an artist modifies the model.
Practical impact
Cinema 4D and SketchUp are explicitly cited as named integrations in the Spatial Preview framework. In practice, a designer working in Cinema 4D on a Mac can preview a model at real-world scale on Vision Pro and edit it live, with no custom headset app in between — removing an entire build step from a design review loop. Making previously advanced primitives into system APIs lowers the entry barrier for resource-constrained teams.