17 lines
1.1 KiB
Markdown
17 lines
1.1 KiB
Markdown
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---
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uid: arsubsystems-occlusion-subsystem
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---
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# Occlusion subsystem
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Provider packages for platforms that expose per-frame images representing depth or stencil images can implement the [XROcclsionSubsystem](xref:UnityEngine.XR.ARSubsystems.XROcclusionSubsystem). Incorporating these depth images into the rendering process are often the best approach for achieving realistic-looking blending of augmented and real-world content by making sure that nearby physical objects occlude virtual content that is located behind them in the shared AR space.
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The types of depth images supported are:
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- **Environment Depth**: distance from the device to any part of the environment in the camera field of view.
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- **Human Depth**: distance from the device to any part of a human recognized within the camera field of view.
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- **Human Stencil**: value designating, for each pixel, whether that pixel contains a recognized human.
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The subsystem interface allows for:
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- Enabling, disabling, and quality configuration for the various supported depth images.
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- Querying the availability of each type of depth image.
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- Access to the depth image data.
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