StabilizedRay Class

Definition

Namespace:: MixedReality.Toolkit

Assembly:: MixedReality.Toolkit.Core.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

A ray whose position and direction are stabilized in a way similar to how gaze stabilization works in HoloLens.

public class StabilizedRay

type StabilizedRay = class

Public Class StabilizedRay

Inheritance: Object
StabilizedRay

Remarks

The ray uses a "DynamicExpDecay" filter to stabilize the ray. This filter adjusts its smoothing factor based on the velocity of the filtered object. The formula is Y_smoothed += ∆𝑌_𝑟 where 〖∆𝑌_𝑟=∆𝑌∗〖0.5〗^(∆𝑌/〖Halflife〗)

In code, LERP(signal, oldValue, POW(0.5, ABS(signal – oldValue) / hl)

Constructors

Name	Description
StabilizedRay(Single, Single)	StabilizedRay with distinct position and direction half life values. HalfLife closer to zero means lerp closer to one.
StabilizedRay(Single)	HalfLife closer to zero means lerp closer to one.

Properties

Name	Description
HalfLifeDirection	Half life used for velocity decay calculations.
HalfLifePosition	Half life used for position decay calculations.
StabilizedDirection	Computed stabilized direction.
StabilizedPosition	Computed Stabilized position.

Methods

Name	Description
AddSample(Ray)	Add sample to ray stabilizer.
DynamicExpCoefficient(Single, Single)	Compute dynamic exponential coefficient.
DynamicExpDecay(Vector3, Vector3, Single)	Compute stabilized vector3 given a previously stabilized value, and a new sample, given a half life.

Applies to