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> Unreal Engine Blueprint API Reference > Input > XRTracking > Get Controller Transform for Time

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Get Controller Transform for Time

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MacOS

Linux

Get the transform and potentially velocity data at a specified time near the current frame in unreal world space. This is intended for use with sub-frame input action timing data from SetXRTimedInputActionDelegate, or future support for timestamps in the core input system. The valid time window is platform dependent, but the intention per OpenXR is to fetch transforms for times from, at most, the previous few frames in the past or future. The OpenXR spec suggests that 50ms in the past should return an accurate result. There is no guarantee for the future, but the underlying system is likely to have been designed to predict out to about 50ms as well. On some platforms this will always just return a cached position and rotation, ignoring time. bTimeWasUsed will be false in that case.

Target is Head Mounted Display Function Library

Get Controller Transform for Time

World Context

Select Asset

Controller Index

Motion Source

None

Time

Time Was Used

Orientation

R 0

P 0

Position

Y 0

Z 0

Provided Linear Velocity

Linear Velocity

Y 0

Z 0

Provided Angular Velocity

Angular Velocity Rad Per Sec

Y 0

Z 0

Return Value

Inputs

	In Exec
	World Context Object Reference
	Controller Index Integer
	Motion Source Name
	Time Timespan Structure

Outputs

	Out Exec
	Time Was Used Boolean
	Orientation Rotator
	Position Vector
	Provided Linear Velocity Boolean
	Linear Velocity Vector
	Provided Angular Velocity Boolean
	Angular Velocity Rad Per Sec Vector
	Return Value Boolean	Get the transform and potentially velocity data at a specified time near the current frame in unreal world space. This is intended for use with sub-frame input action timing data from SetXRTimedInputActionDelegate, or future support for timestamps in the core input system. The valid time window is platform dependent, but the intention per OpenXR is to fetch transforms for times from, at most, the previous few frames in the past or future. The OpenXR spec suggests that 50ms in the past should return an accurate result. There is no guarantee for the future, but the underlying system is likely to have been designed to predict out to about 50ms as well. On some platforms this will always just return a cached position and rotation, ignoring time. bTimeWasUsed will be false in that case.

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