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Meta Spatial SDK

Updated: Jun 11, 2026|

Version

0.13.1

Transform your apps into mixed reality with Spatial SDK, a native Android framework to give your users an innovative spatial experience.

Version 0.13.1 Release Notes

Meta Spatial SDK v0.13.1 introduces hierarchical visibility control, scene-wide global material attributes, path-based entity lookup and other helpful minor fixes.
New Features
ECS
Experimental: Added EntityPath for path-based entity lookup using Named and TransformParent hierarchy. Supports absolute paths (EntityPath.find("/A/B/C")), relative paths (Entity.findByPath("B/C")), single-segment child lookup (Entity.findChildByName(name)), and inverse path retrieval (Entity.getPath()). Paths resolve in a single native call at approximately O(depth) cost.
Added VisibilityState component for hierarchical visibility control. Entities can be set to VISIBLE, INVISIBLE, or INHERIT (default), where INHERIT resolves by walking the TransformParent chain to the nearest non-INHERIT ancestor. VisibleSystem propagates resolved visibility reactively each tick, re-resolving only changed subtrees.
Changes & Improvements
Added MeshManager.sweepUnusedMeshes() API for reclaiming unused cached mesh memory. GLXFManager GLXFManager.deleteGLXF() and deleteGLXFEntityAndGetDeletedChildren() APIs also accept an optional sweepUnusedMeshes parameter (defaults to false) to reclaim unused cached mesh memory.
Added Scene.setGlobalAttribute(), Scene.clearGlobalAttribute(), and Scene.clearAllGlobalAttributes() for broadcasting a Vector4 uniform value to every material in the scene that has a matching constant binding. Materials loaded after the call pick up the value automatically.
Added AlphaMode.PREMULTIPLIED for correct blending of textures with pre-multiplied alpha channels, avoiding double-multiplication artifacts on translucent sprites and decals.
Added PixelsPerDegree.Quest3S enum value for correct Quest 3S display resolution detection.
Bug Fixes
Fixed the Datamodel Inspector displaying Boolean component attributes as integer 0/1 instead of true/false.
Version 0.13.1 Samples and Templates Changelog

Meta Spatial SDK publishes project samples and templates at: Meta Spatial SDK Samples

This release updates all samples and templates to v0.13.1.
Changes & Improvements
Updated all samples and templates to Meta Spatial SDK v0.13.0, with code quality improvements in MrukSample including refactored mesh creation and improved Kotlin idioms.
Bug Fixes
Fixed SpatialVideoSample video panel rendering at 2.5x scale on launch in MR mode.
Fixed a build error in UISetSamplePartner caused by an invalid private const val declaration in ImmersiveActivity.