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> Unreal Engine API Reference > Runtime > HeadMountedDisplay > FXRTrackingSystemBase > FXRTrackingSystemBase::RefreshTrackingToWorldTransform

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FXRTrackingSystemBase::RefreshTrackingToWorldTransform

Computes the project's tracking-to-world transform based off how the user has set up their camera system (assumes the camera is parented to the XR origin, and in turn uses that transform).

Windows

MacOS

Linux

References

Module	HeadMountedDisplay
Header	/Engine/Source/Runtime/HeadMountedDisplay/Public/XRTrackingSystemBase.h
Include	#include "XRTrackingSystemBase.h"
Source	/Engine/Source/Runtime/HeadMountedDisplay/Private/XRTrackingSystemBase.cpp

Syntax

FTransform RefreshTrackingToWorldTransform
(
FWorldContext & WorldContext
)

Remarks

Computes the project's tracking-to-world transform based off how the user has set up their camera system (assumes the camera is parented to the XR origin, and in turn uses that transform).

Intended to be called from OnStartGameFrame()

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