XR Simulation project settings

Go to Edit > Project Settings > XR Plug-in Management > XR Simulation to tune the performance of XR Simulation according to your project's needs. XR Simulation project settings are saved under your Assets folder at XR/Resources/XRSimulationRuntimeSettings.asset.

XR Simulation project settings

Setting		Description
Environment Layer		XR Simulation requires a dedicated layer to render the XR Simulation environment separately from your scene. That layer is specified here, and by default is layer 30.
Environment Scan Params		XR Simulation scans for point clouds and planes in the environment by raycasting against its meshes. These settings control that process.
	Min Time Until Rescan	Minimum time in seconds that must elapse between environment scans.
	Min Camera Distance Until Rescan	Minimum distance in meters the camera must move before the next environment scan. The next environment scan will trigger on the first Update after Min Time Until Rescan has elapsed where the camera has either moved at least Min Camera Distance or rotated at least Min Camera Rotation.
	Min Camera Rotation Until Rescan	Minimum angle change in degrees the camera must rotate before the next environment scan. The next environment scan will trigger on the first Update after Min Time Until Rescan has elapsed where the camera has either moved at least Min Camera Distance or rotated at least Min Camera Rotation.
	Raycasts Per Scan	Total number of rays to cast in each environment scan. Higher values may impact system performance.
	Max Raycast Hit Distance	Distance in meters from the camera beyond which feature points will not be detected.
	Min Raycast Hit Distance	Distance in meters from the camera within which feature points will not be detected.
Plane Discovery Params		Performance tuning options for plane detection.
	Min Time Until Update	Minimum time in seconds that must elapse between plane discovery updates.
	Min Points Per Sq Meter	Voxel point density, independent of voxel size.
	Min Plane Side Length	A plane with x or y size less than this value in meters will be ignored.
	In Layer Merge Distance	Planes within the same layer that are at most this distance in meters from each other will be merged.
	Cross Layer Merge Distance	Planes in adjacent layers with an elevation difference of at most this distance in meters will be merged.
	Check Empty Area	When enabled, planes will only be created if they do not contain too much empty area.
	Allowed Empty Area Curve	Curve that maps the area of a plane to the ratio of area that is allowed to be empty.
	Point Update Dropout Rate	Probability of dropping per-plane updates. If a random number between 0 and 1 is below this number, the update is dropped.
	Normal Tolerance Angle	If the angle between a point's normal and a voxel grid direction is within this range, the point is added to the grid.
	Voxel Size	Side length of each voxel in the plane voxel grid.
Tracked Image Discovery Params		Performance tuning options for image tracking.
	Min Time Until Update	Minimum time in seconds that must elapse between image tracking updates.

XR Simulation preferences

Go to menu Edit > Preferences > XR Simulation (Windows) or Unity > Preferences > XR Simulation (Mac) to set your preferences for XR Simulation. Preferences are saved under your Assets folder at XR/UserSimulationSettings/Resources/XRSimulationPreferences.asset.

XR Simulation preferences

Setting	Description
Environment Prefab	Stores the Prefab asset for the active XR Simulation environment. Note that it is easier to set this in the XR Environment view because the view's Environment list only includes environment Prefabs rather than every Prefab in the project.
Enable Navigation	Enables or disables the navigation controls that XR simulation adds to the Game view (using the WASD, Q, E, and Shift keys and the mouse). You can disable these navigation controls if they interfere with your own input handling.