Develop

High-Fidelity Scene (archived)

Updated: Jul 24, 2026

The High-Fidelity (HiFi) Scene feature is no longer supported outside of existing legacy apps. The content here is retained for reference purposes for those legacy apps. For current scene capabilities, refer to the MR Utility Kit Features documentation.

High-Fidelity Scene

HiFi scene provides a more detailed version of the room layout that allows features such as multiple floors, columns, and slanted ceilings to be queried by the developer.

To use HiFi Scene in MRUK, select the scene model when loading the scene:

When using Load Scene From Device Async Blueprint node, set the Scene Model parameter to V2 or V2_Fallback_V1

When using Load Scene From Json Async Blueprint node, set the Scene Model parameter to V2 or V2_Fallback_V1

When calling LoadSceneFromDevice() or LoadSceneFromJsonString() from C++, pass EMRUKSceneModel::V2 or EMRUKSceneModel::V2FallbackV1

The scene model options are:

V1: Standard scene with single floor and ceiling

V2: High-Fidelity Scene with multiple floors, ceilings, and enhanced labels

V2_Fallback_V1: Try to load V2, but fall back to V1 if unavailable

New Features

Inner Wall Faces - A room can now have inner wall faces to represent complex architectural features such as columns, pillars, or other structural elements. These are represented by the new INNER_WALL_FACEsemantic label.

Multiple Floors - A room can now have multiple floors if detected by the space setup. This feature allows for more accurate representation of multi-story buildings or rooms with varying floor levels. The Scene API will provide separate floor planes for each distinct floor level.

Multiple Ceilings - A room can now have multiple ceilings if detected by the space setup. This feature supports complex ceiling geometries, such as slanted or dropped ceilings. The Scene API will provide separate ceiling planes for each distinct ceiling.

CoreHifi.umap

Similar to the Core sample, but uses the high fidelity scene (EMRUKSceneModel::V2) to reconstruct a more detailed interior, including slanted walls and ceilings.