Occlusion

This page supplements the AR Foundation Occlusion manual. The following sections only contain information about APIs where Google's Android XR runtime exhibits platform-specific behavior.

Tip

When developing an AR app, refer to both the AR Foundation documentation as well as the required packages for each platform you support.

Optional feature support

Android XR implements the following optional features of AR Foundation's XROcclusionSubsystem:

Feature	Descriptor Property	Supported
Environment Depth Image	environmentDepthImageSupported	Yes
Environment Depth Confidence Image	environmentDepthConfidenceImageSupported	Yes
Environment Depth Temporal Smoothing	environmentDepthTemporalSmoothingSupported	Yes
Human Segmentation Stencil Image	humanSegmentationStencilImageSupported
Human Segmentation Depth Image	humanSegmentationDepthImageSupported

Testing occlusion

AR Foundation provides the HMDOcclusion sample to demonstrate occlusion. To test occlusion on Android XR with the occlusion sample:

1. Download the AR Foundation Samples app from the AR Foundations Samples GitHub repository and open it in Unity 6000.0.23f1.
2. Open the HMDOcclusion scene in Unity from Assets/Scenes/Occlusion.
3. Create a new material and set its shader to Assets/Shaders/Occlusion/OcclusionSimpleLit/OcclusionSimpleLit.shader. Refer to Creating Materials for more information about creating and applying materials.
4. Apply the new material to a sample cube in the scene and position as desired.
5. Open the AROcclusionManager in the Inspector window, and disable Temporal Smoothing.

Note

You can also add the avruntime permissions request script so that apk prompts for necessary permissions at launch.