version 2.0.0
This commit is contained in:
srl87
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// "VIVE SDK
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// © 2020 HTC Corporation. All Rights Reserved.
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//
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// Unless otherwise required by copyright law and practice,
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// upon the execution of HTC SDK license agreement,
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// HTC grants you access to and use of the VIVE SDK(s).
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// You shall fully comply with all of HTC’s SDK license agreement terms and
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// conditions signed by you and all SDK and API requirements,
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// specifications, and documentation provided by HTC to You."
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using System;
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using System.Runtime.InteropServices;
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namespace VIVE.OpenXR.FacialTracking
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{
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/// <summary>
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/// The XrFacialTrackerHTC handle represents the resources for an facial tracker of the specific facial tracking type.
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/// </summary>
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public struct XrFacialTrackerHTC : IEquatable<UInt64>
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{
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private readonly UInt64 value;
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public XrFacialTrackerHTC(UInt64 u)
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{
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value = u;
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}
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public static implicit operator UInt64(XrFacialTrackerHTC equatable)
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{
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return equatable.value;
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}
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public static implicit operator XrFacialTrackerHTC(UInt64 u)
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{
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return new XrFacialTrackerHTC(u);
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}
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public bool Equals(XrFacialTrackerHTC other)
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{
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return value == other.value;
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}
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public bool Equals(UInt64 other)
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{
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return value == other;
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}
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public override bool Equals(object obj)
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{
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return obj is XrFacialTrackerHTC && Equals((XrFacialTrackerHTC)obj);
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}
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public override int GetHashCode()
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{
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return value.GetHashCode();
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}
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public override string ToString()
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{
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return value.ToString();
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}
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public static bool operator ==(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.Equals(b); }
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public static bool operator !=(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return !a.Equals(b); }
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public static bool operator >=(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value >= b.value; }
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public static bool operator <=(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value <= b.value; }
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public static bool operator >(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value > b.value; }
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public static bool operator <(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value < b.value; }
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public static XrFacialTrackerHTC operator +(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value + b.value; }
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public static XrFacialTrackerHTC operator -(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value - b.value; }
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public static XrFacialTrackerHTC operator *(XrFacialTrackerHTC a, XrFacialTrackerHTC b) { return a.value * b.value; }
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public static XrFacialTrackerHTC operator /(XrFacialTrackerHTC a, XrFacialTrackerHTC b)
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{
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if (b.value == 0)
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{
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throw new DivideByZeroException();
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}
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return a.value / b.value;
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}
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}
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/// <summary>
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/// The XrFacialTrackingTypeHTC describes which type of tracking the <see cref="XrFacialTrackerHTC">XrFacialTrackerHTC</see> is using.
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/// </summary>
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public enum XrFacialTrackingTypeHTC
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{
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/// <summary>
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/// Specifies this handle will observe eye expressions, with values indexed by <see cref="XrEyeExpressionHTC">XrEyeExpressionHTC</see> whose count is <see cref="ViveFacialTrackingHelper.XR_FACIAL_EXPRESSION_EYE_COUNT_HTC">XR_FACIAL_EXPRESSION_EYE_COUNT_HTC</see>.
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/// </summary>
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XR_FACIAL_TRACKING_TYPE_EYE_DEFAULT_HTC = 1,
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/// <summary>
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/// Specifies this handle will observe lip expressions, with values indexed by <see cref="XrLipExpressionHTC">XrLipExpressionHTC</see> whose count is <see cref="ViveFacialTrackingHelper.XR_FACIAL_EXPRESSION_LIP_COUNT_HTC">XR_FACIAL_EXPRESSION_LIP_COUNT_HTC</see>.
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/// </summary>
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XR_FACIAL_TRACKING_TYPE_LIP_DEFAULT_HTC = 2,
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};
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/// <summary>
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/// Indicates the eye expressions. Refer to <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#XrEyeExpressionHTC">XrEyeExpressionHTC</see> about the illustrations.
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/// </summary>
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public enum XrEyeExpressionHTC
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{
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/// <summary>
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/// This blend shape influences blinking of the right eye. When this value goes higher, left eye approaches close.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_BLINK_HTC = 0,
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/// <summary>
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/// This blend shape keeps left eye wide and at that time XR_EYE_EXPRESSION_LEFT_BLINK_HTC value is 0.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_WIDE_HTC = 1,
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/// <summary>
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/// This blend shape influences blinking of the right eye. When this value goes higher, right eye approaches close.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_BLINK_HTC = 2,
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/// <summary>
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/// This blend shape keeps right eye wide and at that time XR_EYE_EXPRESSION_RIGHT_BLINK_HTC value is 0.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_WIDE_HTC = 3,
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/// <summary>
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/// The blend shape closes eye tightly and at that time XR_EYE_EXPRESSION_LEFT_BLINK_HTC value is 1.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_SQUEEZE_HTC = 4,
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/// <summary>
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/// The blend shape closes eye tightly and at that time XR_EYE_EXPRESSION_RIGHT_BLINK_HTC value is 1.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_SQUEEZE_HTC = 5,
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/// <summary>
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/// This blendShape influences the muscles around the left eye, moving these muscles further downward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_DOWN_HTC = 6,
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/// <summary>
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/// This blendShape influences the muscles around the right eye, moving these muscles further downward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_DOWN_HTC = 7,
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/// <summary>
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/// This blendShape influences the muscles around the left eye, moving these muscles further leftward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_OUT_HTC = 8,
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/// <summary>
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/// This blendShape influences the muscles around the right eye, moving these muscles further leftward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_IN_HTC = 9,
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/// <summary>
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/// This blendShape influences the muscles around the left eye, moving these muscles further rightward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_IN_HTC = 10,
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/// <summary>
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/// This blendShape influences the muscles around the right eye, moving these muscles further rightward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_OUT_HTC = 11,
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/// <summary>
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/// This blendShape influences the muscles around the left eye, moving these muscles further upward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_LEFT_UP_HTC = 12,
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/// <summary>
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/// This blendShape influences the muscles around the right eye, moving these muscles further upward with a higher value.
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/// </summary>
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XR_EYE_EXPRESSION_RIGHT_UP_HTC = 13,
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XR_EYE_EXPRESSION_MAX_ENUM_HTC = 14
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};
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/// <summary>
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/// Indicates the lip expressions. Refer to <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#XrLipExpressionHTC">XrLipExpressionHTC</see> about the illustrations.
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/// </summary>
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public enum XrLipExpressionHTC
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{
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/// <summary>
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/// This blend shape moves the jaw further rightward with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_JAW_RIGHT_HTC = 0,
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/// <summary>
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/// This blend shape moves the jaw further leftward with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_JAW_LEFT_HTC = 1,
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/// <summary>
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/// This blend shape moves the jaw forward with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_JAW_FORWARD_HTC = 2,
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/// <summary>
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/// This blend shape opens the mouth further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_JAW_OPEN_HTC = 3,
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/// <summary>
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/// This blend shape stretches the jaw further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_APE_SHAPE_HTC = 4,
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/// <summary>
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/// This blend shape moves your upper lip rightward.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_RIGHT_HTC = 5,
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/// <summary>
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/// This blend shape moves your upper lip leftward.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_LEFT_HTC = 6,
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/// <summary>
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/// This blend shape moves your lower lip rightward.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_RIGHT_HTC = 7,
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/// <summary>
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/// This blend shape moves your lower lip leftward.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_LEFT_HTC = 8,
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/// <summary>
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/// This blend shape pouts your upper lip. Can be used with <see cref="XrLipExpressionHTC.XR_LIP_EXPRESSION_MOUTH_UPPER_UPRIGHT_HTC">XR_LIP_EXPRESSION_MOUTH_UPPER_UPRIGHT_HTC</see> and <see cref="XrLipExpressionHTC.XR_LIP_EXPRESSION_MOUTH_UPPER_UPLEFT_HTC">XR_LIP_EXPRESSION_MOUTH_UPPER_UPLEFT_HTC</see> to complete upper O mouth shape.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_OVERTURN_HTC = 9,
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/// <summary>
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/// This blend shape pouts your lower lip. Can be used with <see cref="XrLipExpressionHTC.XR_LIP_EXPRESSION_MOUTH_UPPER_UPRIGHT_HTC">XR_LIP_EXPRESSION_MOUTH_UPPER_UPRIGHT_HTC</see> and <see cref="XrLipExpressionHTC.XR_LIP_EXPRESSION_MOUTH_LOWER_DOWNRIGHT_HTC">XR_LIP_EXPRESSION_MOUTH_LOWER_DOWNRIGHT_HTC</see> to complete upper O mouth shape.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_OVERTURN_HTC = 10,
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/// <summary>
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/// This blend shape allows the lips to pout more with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_POUT_HTC = 11,
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/// <summary>
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/// This blend shape raises the right side of the mouth further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_SMILE_RIGHT_HTC = 12,
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/// <summary>
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/// This blend shape raises the left side of the mouth further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_SMILE_LEFT_HTC = 13,
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/// <summary>
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/// This blend shape lowers the right side of the mouth further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_SAD_RIGHT_HTC = 14,
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/// <summary>
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/// This blend shape lowers the left side of the mouth further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_SAD_LEFT_HTC = 15,
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/// <summary>
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/// This blend shape puffs up the right side of the cheek further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_CHEEK_PUFF_RIGHT_HTC = 16,
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/// <summary>
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/// This blend shape puffs up the left side of the cheek further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_CHEEK_PUFF_LEFT_HTC = 17,
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/// <summary>
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/// This blend shape sucks in the cheeks on both sides further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_CHEEK_SUCK_HTC = 18,
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/// <summary>
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/// This blend shape raises the right upper lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_UPRIGHT_HTC = 19,
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/// <summary>
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/// This blend shape raises the left upper lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_UPLEFT_HTC = 20,
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/// <summary>
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/// This blend shape lowers the right lower lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_DOWNRIGHT_HTC = 21,
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/// <summary>
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/// This blend shape lowers the left lower lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_DOWNLEFT_HTC = 22,
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/// <summary>
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/// This blend shape rolls in the upper lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_UPPER_INSIDE_HTC = 23,
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/// <summary>
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/// This blend shape rolls in the lower lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_INSIDE_HTC = 24,
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/// <summary>
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/// This blend shape stretches the lower lip further and lays it on the upper lip further with a higher value.
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/// </summary>
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XR_LIP_EXPRESSION_MOUTH_LOWER_OVERLAY_HTC = 25,
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/// <summary>
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/// This blend shape sticks the tongue out slightly.
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///
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/// In step 1 of extending the tongue, the main action of the tongue is to lift up, and the elongated length only extends to a little bit beyond the teeth.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_LONGSTEP1_HTC = 26,
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/// <summary>
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/// This blend shape sticks the tongue out and left extremely.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_LEFT_HTC = 27,
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/// <summary>
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/// This blend shape sticks the tongue out and right extremely.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_RIGHT_HTC = 28,
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/// <summary>
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/// This blend shape sticks the tongue out and up extremely.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_UP_HTC = 29,
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/// <summary>
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/// This blend shape sticks the tongue out and down extremely.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_DOWN_HTC = 30,
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/// <summary>
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/// This blend shape sticks the tongue out with roll type.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_ROLL_HTC = 31,
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/// <summary>
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/// This blend shape sticks the tongue out extremely.
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///
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/// Continuing the step 1, it extends the tongue to the longest.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_LONGSTEP2_HTC = 32,
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/// <summary>
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/// This blend shape doesn’t make sense. When both the right and up blend shapes appear at the same time, the tongue will be deformed.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_UPRIGHT_MORPH_HTC = 33,
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/// <summary>
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/// This blend shape doesn’t make sense. When both the left and up blend shapes appear at the same time, the tongue will be deformed.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_UPLEFT_MORPH_HTC = 34,
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/// <summary>
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/// This blend shape doesn’t make sense. When both the right and down blend shapes appear at the same time, the tongue will be deformed.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_DOWNRIGHT_MORPH_HTC = 35,
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/// <summary>
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/// This blend shape doesn’t make sense. When both the left and down blend shapes appear at the same time, the tongue will be deformed.
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/// </summary>
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XR_LIP_EXPRESSION_TONGUE_DOWNLEFT_MORPH_HTC = 36,
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XR_LIP_EXPRESSION_MAX_ENUM_HTC = 37
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};
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/// <summary>
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/// An application can inspect whether the system is capable of two of the facial tracking by extending the <see cref="XrSystemProperties">XrSystemProperties</see> with <see cref="XrSystemFacialTrackingPropertiesHTC">XrSystemFacialTrackingPropertiesHTC</see> structure when calling <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#xrGetSystemProperties">xrGetSystemProperties</see>.
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/// </summary>
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[StructLayout(LayoutKind.Sequential)]
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public struct XrSystemFacialTrackingPropertiesHTC
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{
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/// <summary>
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||||
/// The <see cref="XrStructureType">XrStructureType</see> of this structure.
|
||||
/// </summary>
|
||||
public XrStructureType type;
|
||||
/// <summary>
|
||||
/// NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.
|
||||
/// </summary>
|
||||
public IntPtr next;
|
||||
/// <summary>
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/// Indicates if the current system is capable of generating eye expressions.
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/// </summary>
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public XrBool32 supportEyeFacialTracking;
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/// <summary>
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/// Indicates if the current system is capable of generating lip expressions.
|
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/// </summary>
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public XrBool32 supportLipFacialTracking;
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};
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||||
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/// <summary>
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||||
/// The XrFacialTrackerCreateInfoHTC structure describes the information to create an <see cref="XrFacialTrackerHTC">XrFacialTrackerHTC</see> handle.
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||||
/// </summary>
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||||
[StructLayout(LayoutKind.Sequential)]
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||||
public struct XrFacialTrackerCreateInfoHTC
|
||||
{
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||||
/// <summary>
|
||||
/// The <see cref="XrStructureType">XrStructureType</see> of this structure.
|
||||
/// </summary>
|
||||
public XrStructureType type;
|
||||
/// <summary>
|
||||
/// NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.
|
||||
/// </summary>
|
||||
public IntPtr next;
|
||||
/// <summary>
|
||||
/// An XrFacialTrackingTypeHTC which describes which type of facial tracking should be used for this handle.
|
||||
/// </summary>
|
||||
public XrFacialTrackingTypeHTC facialTrackingType;
|
||||
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||||
/// <param name="in_type">The <see cref="XrStructureType">XrStructureType</see> of this structure.</param>
|
||||
/// <param name="in_next">NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.</param>
|
||||
/// <param name="in_facialTrackingType">An XrFacialTrackingTypeHTC which describes which type of facial tracking should be used for this handle.</param>
|
||||
public XrFacialTrackerCreateInfoHTC(XrStructureType in_type, IntPtr in_next, XrFacialTrackingTypeHTC in_facialTrackingType)
|
||||
{
|
||||
type = in_type;
|
||||
next = in_next;
|
||||
facialTrackingType = in_facialTrackingType;
|
||||
}
|
||||
};
|
||||
|
||||
/// <summary>
|
||||
/// XrFacialExpressionsHTC structure returns data of a lip facial expression or an eye facial expression.
|
||||
/// </summary>
|
||||
[StructLayout(LayoutKind.Sequential)]
|
||||
public struct XrFacialExpressionsHTC
|
||||
{
|
||||
/// <summary>The XrStructureType of this structure.</summary>
|
||||
public XrStructureType type;
|
||||
/// <summary>NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.</summary>
|
||||
public IntPtr next;
|
||||
/// <summary>An XrBool32 indicating if the facial tracker is active.</summary>
|
||||
public XrBool32 isActive;
|
||||
/// <summary>When in time the expression is expressed.</summary>
|
||||
public XrTime sampleTime;
|
||||
/// <summary>A uint32_t describing the count of elements in expressionWeightings array.</summary>
|
||||
public UInt32 expressionCount;
|
||||
/// <summary>A float array filled in by the runtime, specifying the weightings for each blend shape.</summary>
|
||||
public IntPtr expressionWeightings;
|
||||
|
||||
/// <param name="in_type">The XrStructureType of this structure.</param>
|
||||
/// <param name="in_next">NULL or a pointer to the next structure in a structure chain. No such structures are defined in core OpenXR or this extension.</param>
|
||||
/// <param name="in_isActive">An XrBool32 indicating if the facial tracker is active.</param>
|
||||
/// <param name="in_sampleTime">When in time the expression is expressed.</param>
|
||||
/// <param name="in_expressionCount">>A uint32_t describing the count of elements in expressionWeightings array.</param>
|
||||
/// <param name="in_expressionWeightings">A float array filled in by the runtime, specifying the weightings for each blend shape.</param>
|
||||
public XrFacialExpressionsHTC(
|
||||
XrStructureType in_type,
|
||||
IntPtr in_next,
|
||||
XrBool32 in_isActive,
|
||||
XrTime in_sampleTime,
|
||||
UInt32 in_expressionCount,
|
||||
IntPtr in_expressionWeightings)
|
||||
{
|
||||
type = in_type;
|
||||
next = in_next;
|
||||
isActive = in_isActive;
|
||||
sampleTime = in_sampleTime;
|
||||
expressionCount = in_expressionCount;
|
||||
expressionWeightings = in_expressionWeightings;
|
||||
}
|
||||
};
|
||||
|
||||
public static class ViveFacialTrackingHelper
|
||||
{
|
||||
/// <summary> The number of blend shapes in an expression of type <see cref="XrFacialTrackingTypeHTC.XR_FACIAL_TRACKING_TYPE_EYE_DEFAULT_HTC">XR_FACIAL_TRACKING_TYPE_EYE_DEFAULT_HTC</see>. </summary>
|
||||
public const UInt32 XR_FACIAL_EXPRESSION_EYE_COUNT_HTC = 14;
|
||||
/// <summary> The number of blend shapes in an expression of type <see cref="XrFacialTrackingTypeHTC.XR_FACIAL_TRACKING_TYPE_LIP_DEFAULT_HTC">XR_FACIAL_TRACKING_TYPE_LIP_DEFAULT_HTC.</see> </summary>
|
||||
public const UInt32 XR_FACIAL_EXPRESSION_LIP_COUNT_HTC = 37;
|
||||
|
||||
/// <summary>
|
||||
/// The delegate function of <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#xrCreateFacialTrackerHTC">xrCreateFacialTrackerHTC</see>.
|
||||
/// </summary>
|
||||
/// <param name="session">An XrSession in which the facial expression will be active.</param>
|
||||
/// <param name="createInfo">The <see cref="XrFacialTrackerCreateInfoHTC">XrFacialTrackerCreateInfoHTC</see> used to specify the facial tracking type.</param>
|
||||
/// <param name="facialTracker">The returned <see cref="XrFacialTrackerHTC">XrFacialTrackerHTC</see> handle.</param>
|
||||
/// <returns>XR_SUCCESS for success.</returns>
|
||||
public delegate XrResult xrCreateFacialTrackerHTCDelegate(
|
||||
XrSession session,
|
||||
XrFacialTrackerCreateInfoHTC createInfo,
|
||||
out XrFacialTrackerHTC facialTracker);
|
||||
|
||||
/// <summary>
|
||||
/// The delegate function of <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#xrDestroyFacialTrackerHTC">xrDestroyFacialTrackerHTC</see>.
|
||||
/// </summary>
|
||||
/// <param name="facialTracker">An XrFacialTrackerHTC previously created by xrCreateFacialTrackerHTC.</param>
|
||||
/// <returns>XR_SUCCESS for success.</returns>
|
||||
public delegate XrResult xrDestroyFacialTrackerHTCDelegate(
|
||||
XrFacialTrackerHTC facialTracker);
|
||||
|
||||
/// <summary>
|
||||
/// The delegate function of <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#xrGetFacialExpressionsHTC">xrGetFacialExpressionsHTC</see>.
|
||||
/// </summary>
|
||||
/// <param name="facialTracker">An <see cref="XrFacialTrackerHTC">XrFacialTrackerHTC</see> previously created by <see href="https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#xrCreateFacialTrackerHTC">xrCreateFacialTrackerHTC</see>.</param>
|
||||
/// <param name="facialExpressions">A pointer to <see cref="XrFacialExpressionsHTC">XrFacialExpressionsHTC</see> receiving the returned facial expressions.</param>
|
||||
/// <returns></returns>
|
||||
public delegate XrResult xrGetFacialExpressionsHTCDelegate(
|
||||
XrFacialTrackerHTC facialTracker,
|
||||
ref XrFacialExpressionsHTC facialExpressions);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user