Streaming Adaptive Probe Volumes

You can enable Adaptive Probe Volume streaming to enable Adaptive Probe Volume lighting in very large worlds. Using streaming means you can bake Adaptive Probe Volume data larger than available CPU or GPU memory, and load it at runtime when it’s needed. At runtime, as your cameraA component which creates an image of a particular viewpoint in your scene. The output is either drawn to the screen or captured as a texture. More info
See in Glossary moves, the Universal Render PipelineA series of operations that take the contents of a Scene, and displays them on a screen. Unity lets you choose from pre-built render pipelines, or write your own. More info
See in Glossary (URP) loads only Adaptive Probe Volume data from cells within the camera’s view frustum.

You can enable and disable streaming for different URP quality levels.

Enable streaming

To enable streaming, do the following:

1. From the main menu, select Edit > Project Settings > Quality.
2. Select a Quality Level.
3. Double-click the Render Pipeline Asset to open it in the InspectorA Unity window that displays information about the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. More info
   See in Glossary.
4. Expand Lighting.

You can now enable two types of streaming:

• Enable Enable Disk Streaming to stream from disk to CPU memory.
• Enable Enable GPU Streaming to stream from CPU memory to GPU memory. You must enable Enable Disk Streaming first.

You can configure streaming settings in the same window. Refer to URP Asset for more information.

Debug streaming

The smallest section URP loads and uses is a cell, which is the same size as the largest brick in an Adaptive Probe Volume. You can influence the size of cells in an Adaptive Probe Volume by adjusting the density of Light Probes

To view the cells in an Adaptive Probe Volume, or debug streaming, use the Rendering Debugger.

Additional resources

• Understanding Adaptive Probe Volumes