586 lines
23 KiB
C#
586 lines
23 KiB
C#
// Copyright HTC Corporation All Rights Reserved.
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using UnityEngine;
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using UnityEngine.XR.OpenXR;
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using VIVE.OpenXR.CompositionLayer;
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using VIVE.OpenXR.CompositionLayer.Passthrough;
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namespace VIVE.OpenXR.CompositionLayer.Passthrough
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{
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public static class CompositionLayerPassthroughAPI
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{
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const string LOG_TAG = "CompositionLayerPassthroughAPI";
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static void DEBUG(string msg) { Debug.Log(LOG_TAG + " " + msg); }
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static void WARNING(string msg) { Debug.LogWarning(LOG_TAG + " " + msg); }
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static void ERROR(string msg) { Debug.LogError(LOG_TAG + " " + msg); }
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private static ViveCompositionLayerPassthrough passthroughFeature = null;
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private static bool checkPassthroughFeatureInstance()
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{
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passthroughFeature = OpenXRSettings.Instance.GetFeature<ViveCompositionLayerPassthrough>();
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if (!passthroughFeature) return false;
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return true;
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}
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#region Public APIs
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/// <summary>
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/// For creating a fullscreen passthrough.
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/// Passthroughs will be destroyed automatically when the current XrSession is destroyed.
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/// </summary>
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/// <returns>
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/// ID of the created passthrough.
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/// Value will be 0 if passthrough is not created successfully.
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/// </returns>
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/// <param name="layerType">
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/// Specify whether the passthrough is an overlay or underlay. See <see cref="LayerType"/> for details.
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/// </param>
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/// <param name="onDestroyPassthroughSessionHandler">
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/// Delegate of type <see cref="ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate">OnPassthroughSessionDestroyDelegate</see>.
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/// This delegate will be invoked when the current OpenXR Session is going to be destroyed, which is when the created passthrough layer should be destroyed if not.
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/// </param>
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/// <param name="alpha">
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/// Specify the alpha of the passthrough layer.
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/// Should be within range [0, 1]
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/// 1 (Opaque) by default.
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/// </param>
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/// <param name="compositionDepth">
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/// Specify the composition depth relative to other composition layers if present.
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/// 0 by default.
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/// </param>
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public static int CreatePlanarPassthrough(LayerType layerType, ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate onDestroyPassthroughSessionHandler = null, float alpha = 1f, uint compositionDepth = 0)
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{
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int passthroughID = 0;
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return passthroughID;
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}
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passthroughID = passthroughFeature.HTCPassthrough_CreatePassthrough(layerType, PassthroughLayerForm.Planar, onDestroyPassthroughSessionHandler, compositionDepth);
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if (passthroughID == 0)
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{
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ERROR("Failed to create projected pasthrough");
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}
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else
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{
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SetPassthroughAlpha(passthroughID, alpha);
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}
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return passthroughID;
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}
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/// <summary>
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/// For creating a projected passthrough (i.e. Passthrough is only partially visible).
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/// Visible region of the projected passthrough is determined by the mesh and its transform.
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/// Passthroughs will be destroyed automatically when the current XrSession is destroyed.
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/// </summary>
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/// <returns>
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/// ID of the created passthrough.
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/// Value will be 0 if passthrough is not created successfully.
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/// </returns>
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/// <param name="layerType">
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/// Specify whether the passthrough is an overlay or underlay. See <see cref="LayerType"/> for details.
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/// </param>
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/// <param name="vertexBuffer">
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/// Positions of the vertices in the mesh.
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/// </param>
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///<param name="indexBuffer">
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/// List of triangles represented by indices into the <paramref name="vertexBuffer"/>.
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/// </param>
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/// <param name="spaceType">
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/// Specify the type of space the projected passthrough is in. See <see cref="ProjectedPassthroughSpaceType"/> for details.
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/// </param>
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/// <param name="meshPosition">
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/// Position of the mesh.
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/// </param>
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/// <param name="meshOrientation">
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/// Orientation of the mesh.
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/// </param>
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/// <param name="meshScale">
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/// Scale of the mesh.
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/// </param>
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/// <param name="onDestroyPassthroughSessionHandler">
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/// Delegate of type <see cref="ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate">OnPassthroughSessionDestroyDelegate</see>.
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/// This delegate will be invoked when the current OpenXR Session is going to be destroyed, which is when the created passthrough layer should be destroyed if not.
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/// </param>
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/// <param name="alpha">
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/// Specify the alpha of the passthrough layer.
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/// Should be within range [0, 1]
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/// 1 (Opaque) by default.
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/// </param>
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/// <param name="compositionDepth">
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/// Specify the composition depth relative to other composition layers if present.
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/// 0 by default.
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/// </param>
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/// <param name="trackingToWorldSpace">
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/// Specify whether or not the position and rotation of the mesh transform have to be converted from tracking space to world space.
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/// </param>
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/// <param name="convertFromUnityToOpenXR">
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/// Specify whether the parameters
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/// <paramref name="vertexBuffer"/>, <paramref name="indexBuffer"/>, <paramref name="meshPosition"/> and <paramref name="meshOrientation"/> have to be converted for OpenXR.
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/// </param>
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public static int CreateProjectedPassthrough(LayerType layerType,
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[In, Out] Vector3[] vertexBuffer, [In, Out] int[] indexBuffer, //For Mesh
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ProjectedPassthroughSpaceType spaceType, Vector3 meshPosition, Quaternion meshOrientation, Vector3 meshScale, //For Mesh Transform
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ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate onDestroyPassthroughSessionHandler = null,
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float alpha = 1f, uint compositionDepth = 0, bool trackingToWorldSpace = true, bool convertFromUnityToOpenXR = true)
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{
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int passthroughID = 0;
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return passthroughID;
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}
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if (vertexBuffer.Length < 3 || indexBuffer.Length % 3 != 0) //Must have at least 3 vertices and complete triangles
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{
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ERROR("Mesh data invalid.");
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return passthroughID;
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}
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passthroughID = passthroughFeature.HTCPassthrough_CreatePassthrough(layerType, PassthroughLayerForm.Projected, onDestroyPassthroughSessionHandler, compositionDepth);
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if (passthroughID == 0)
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{
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ERROR("Failed to create projected pasthrough");
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}
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else
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{
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SetPassthroughAlpha(passthroughID, alpha);
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SetProjectedPassthroughMesh(passthroughID, vertexBuffer, indexBuffer, convertFromUnityToOpenXR);
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SetProjectedPassthroughMeshTransform(passthroughID, spaceType, meshPosition, meshOrientation, meshScale, trackingToWorldSpace, convertFromUnityToOpenXR);
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}
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return passthroughID;
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}
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/// <summary>
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/// Creating a projected passthrough (i.e. Passthrough is only partially visible).
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/// Visible region of the projected passthrough is determined by the mesh and its transform.
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/// Passthroughs will be destroyed automatically when the current XrSession is destroyed.
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/// </summary>
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/// <remarks>
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/// When using this overload, <see cref="SetProjectedPassthroughMesh"/> and <see cref="SetProjectedPassthroughMeshTransform"/> must be called afterwards immediately.
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/// </remarks>
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/// <example>
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/// <code>
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/// int PassthroughID = CompositionLayerPassthroughAPI.CreateProjectedPassthrough(layerType, passthroughSessionDestroyHandler, alpha);
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/// CompositionLayerPassthroughAPI.SetProjectedPassthroughMesh(PassthroughID, quadVertices, quadIndicies, true);
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/// CompositionLayerPassthroughAPI.SetProjectedPassthroughMeshTranform(PassthroughID, spaceType, position, rotation, scale, true);
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/// </code>
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/// </example>
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/// <returns>
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/// ID of the created passthrough.
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/// Value will be 0 if passthrough is not created successfully.
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/// </returns>
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/// <param name="layerType">
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/// Specify whether the passthrough is an overlay or underlay. See <see cref="LayerType"/> for details.
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/// </param>
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/// <param name="onDestroyPassthroughSessionHandler">
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/// Delegate of type <see cref="ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate">OnPassthroughSessionDestroyDelegate</see>.
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/// This delegate will be invoked when the current OpenXR Session is going to be destroyed, which is when the created passthrough layer should be destroyed if not.
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/// </param>
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/// <param name="alpha">
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/// Specify the alpha of the passthrough layer.
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/// Should be within range [0, 1].
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/// 1 (Opaque) by default.
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/// </param>
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/// <param name="compositionDepth">
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/// Specify the composition depth relative to other composition layers if present.
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/// 0 by default.
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/// </param>
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public static int CreateProjectedPassthrough(LayerType layerType, ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate onDestroyPassthroughSessionHandler = null, float alpha = 1f, uint compositionDepth = 0)
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{
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int passthroughID = 0;
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return passthroughID;
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}
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passthroughID = passthroughFeature.HTCPassthrough_CreatePassthrough(layerType, PassthroughLayerForm.Projected, onDestroyPassthroughSessionHandler);
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if (passthroughID == 0)
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{
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ERROR("Failed to create projected pasthrough");
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}
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else
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{
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SetPassthroughAlpha(passthroughID, alpha);
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}
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return passthroughID;
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}
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/// <summary>
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/// For destroying a passthrough created previously.
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/// This function should be called in the delegate instance of type <see cref="ViveCompositionLayerPassthrough.OnPassthroughSessionDestroyDelegate">OnPassthroughSessionDestroyDelegate</see> that is previously assigned when creating a passthrough.
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/// </summary>
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/// <returns>
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/// True for successfully destroying the specified passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the passthrough to be destroyed.
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/// </param>
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public static bool DestroyPassthrough(int passthroughID)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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if (!passthroughFeature.PassthroughIDList.Contains(passthroughID))
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{
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ERROR("Passthrough to be destroyed not found");
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return false;
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}
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return passthroughFeature.HTCPassthrough_DestroyPassthrough(passthroughID);
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}
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/// <summary>
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/// For modifying the opacity of a specific passthrough layer.
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/// Can be used for both Planar and Projected passthroughs.
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/// </summary>
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/// <returns>
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/// True for successfully modifying the opacity the specified passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the target passthrough.
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/// </param>
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/// <param name="alpha">
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/// Specify the alpha of the passthrough layer.
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/// Should be within range [0, 1]
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/// 1 (Opaque) by default.
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/// </param>
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/// <param name="autoClamp">
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/// Specify whether out of range alpha values should be clamped automatically.
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/// When set to true, the function will clamp and apply the alpha value automatically.
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/// When set to false, the function will return false if the alpha is out of range.
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/// Set to true by default.
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/// </param>
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public static bool SetPassthroughAlpha(int passthroughID, float alpha, bool autoClamp = true)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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if (autoClamp)
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{
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return passthroughFeature.HTCPassthrough_SetAlpha(passthroughID, Mathf.Clamp01(alpha));
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}
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else
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{
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if (alpha < 0f || alpha > 1f)
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{
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ERROR("SetPassthroughAlpha: Alpha out of range");
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return false;
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}
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return passthroughFeature.HTCPassthrough_SetAlpha(passthroughID, alpha);
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}
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}
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/// <summary>
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/// For modifying the mesh data of a projected passthrough layer.
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/// </summary>
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/// <returns>
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/// True for successfully modifying the mesh data of the projected passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the target passthrough.
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/// </param>
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/// <param name="vertexBuffer">
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/// Positions of the vertices in the mesh.
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/// </param>
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///<param name="indexBuffer">
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/// List of triangles represented by indices into the <paramref name="vertexBuffer"/>.
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/// </param>
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/// <param name="convertFromUnityToOpenXR">
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/// Specify whether the parameters
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/// <paramref name="vertexBuffer"/> and <paramref name="indexBuffer"/> have to be converted for OpenXR.
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/// </param>
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public static bool SetProjectedPassthroughMesh(int passthroughID, [In, Out] Vector3[] vertexBuffer, [In, Out] int[] indexBuffer, bool convertFromUnityToOpenXR = true)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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if (vertexBuffer.Length < 3 || indexBuffer.Length % 3 != 0) //Must have at least 3 vertices and complete triangles
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{
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ERROR("Mesh data invalid.");
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return false;
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}
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XrVector3f[] vertexBufferXrVector = new XrVector3f[vertexBuffer.Length];
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for (int i = 0; i < vertexBuffer.Length; i++)
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{
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vertexBufferXrVector[i] = OpenXRHelper.ToOpenXRVector(vertexBuffer[i], convertFromUnityToOpenXR);
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}
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uint[] indexBufferUint = new uint[indexBuffer.Length];
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for (int i = 0; i < indexBuffer.Length; i++)
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{
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indexBufferUint[i] = (uint)indexBuffer[i];
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}
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//Note: Ignore Clock-Wise definition of index buffer for now as passthrough extension does not have back-face culling
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return passthroughFeature.HTCPassthrough_SetMesh(passthroughID, (uint)vertexBuffer.Length, vertexBufferXrVector, (uint)indexBuffer.Length, indexBufferUint); ;
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}
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/// <summary>
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/// For modifying the mesh transform of a projected passthrough layer.
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/// </summary>
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/// <returns>
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/// True for successfully modifying the mesh data of the projected passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the target passthrough.
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/// </param>
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/// <param name="spaceType">
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/// Specify the type of space the projected passthrough is in. See <see cref="ProjectedPassthroughSpaceType"/> for details.
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/// </param>
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/// <param name="meshPosition">
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/// Position of the mesh.
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/// </param>
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/// <param name="meshOrientation">
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/// Orientation of the mesh.
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/// </param>
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/// <param name="meshScale">
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/// Scale of the mesh.
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/// </param>
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/// <param name="trackingToWorldSpace">
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/// Specify whether or not the position and rotation of the mesh transform have to be converted from tracking space to world space.
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/// </param>
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/// <param name="convertFromUnityToOpenXR">
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/// Specify whether the parameters
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/// <paramref name="meshPosition"/> and <paramref name="meshOrientation"/> have to be converted for OpenXR.
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/// </param>
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public static bool SetProjectedPassthroughMeshTransform(int passthroughID, ProjectedPassthroughSpaceType spaceType, Vector3 meshPosition, Quaternion meshOrientation, Vector3 meshScale, bool trackingToWorldSpace = true, bool convertFromUnityToOpenXR = true)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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Vector3 trackingSpaceMeshPosition = meshPosition;
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Quaternion trackingSpaceMeshRotation = meshOrientation;
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TrackingSpaceOrigin currentTrackingSpaceOrigin = TrackingSpaceOrigin.Instance;
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if (currentTrackingSpaceOrigin != null && trackingToWorldSpace) //Apply origin correction to the mesh pose
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{
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Matrix4x4 trackingSpaceOriginTRS = Matrix4x4.TRS(currentTrackingSpaceOrigin.transform.position, currentTrackingSpaceOrigin.transform.rotation, Vector3.one);
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Matrix4x4 worldSpaceLayerPoseTRS = Matrix4x4.TRS(meshPosition, meshOrientation, Vector3.one);
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Matrix4x4 trackingSpaceLayerPoseTRS = trackingSpaceOriginTRS.inverse * worldSpaceLayerPoseTRS;
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trackingSpaceMeshPosition = trackingSpaceLayerPoseTRS.GetColumn(3); //4th Column of TRS Matrix is the position
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trackingSpaceMeshRotation = Quaternion.LookRotation(trackingSpaceLayerPoseTRS.GetColumn(2), trackingSpaceLayerPoseTRS.GetColumn(1));
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}
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XrPosef meshXrPose;
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meshXrPose.position = OpenXRHelper.ToOpenXRVector(trackingSpaceMeshPosition, convertFromUnityToOpenXR);
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meshXrPose.orientation = OpenXRHelper.ToOpenXRQuaternion(trackingSpaceMeshRotation, convertFromUnityToOpenXR);
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XrVector3f meshXrScale = OpenXRHelper.ToOpenXRVector(meshScale, false);
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return passthroughFeature.HTCPassthrough_SetMeshTransform(passthroughID, passthroughFeature.GetXrSpaceFromSpaceType(spaceType), meshXrPose, meshXrScale);
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}
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/// <summary>
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/// For modifying layer type and composition depth of a passthrough layer.
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/// </summary>
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/// <returns>
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/// True for successfully modifying the layer type and composition depth of the passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the target passthrough.
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/// </param>
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/// <param name="layerType">
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/// Specify whether the passthrough is an overlay or underlay. See <see cref="LayerType"/> for details.
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/// </param>
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/// <param name="compositionDepth">
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/// Specify the composition depth relative to other composition layers if present.
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/// 0 by default.
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/// </param>
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public static bool SetPassthroughLayerType(int passthroughID, LayerType layerType, uint compositionDepth = 0)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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return passthroughFeature.HTCPassthrough_SetLayerType(passthroughID, layerType, compositionDepth);
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}
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/// <summary>
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/// For modifying the space of a projected passthrough layer.
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/// </summary>
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/// <returns>
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/// True for successfully modifying the space of the projected passthrough, vice versa.
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/// </returns>
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/// <param name="passthroughID">
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/// The ID of the target passthrough.
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/// </param>
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/// <param name="spaceType">
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/// Specify the type of space the projected passthrough is in. See <see cref="ProjectedPassthroughSpaceType"/> for details.
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/// </param>
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public static bool SetProjectedPassthroughSpaceType(int passthroughID, ProjectedPassthroughSpaceType spaceType)
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{
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if (!checkPassthroughFeatureInstance())
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{
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ERROR("HTC_Passthrough feature instance not found.");
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return false;
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}
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return passthroughFeature.HTCPassthrough_SetMeshTransformSpace(passthroughID, passthroughFeature.GetXrSpaceFromSpaceType(spaceType));
|
|
}
|
|
|
|
/// <summary>
|
|
/// For modifying the mesh position of a projected passthrough layer.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// True for successfully modifying the mesh position of the projected passthrough, vice versa.
|
|
/// </returns>
|
|
/// <param name="passthroughID">
|
|
/// The ID of the target passthrough.
|
|
/// </param>
|
|
/// <param name="meshPosition">
|
|
/// Position of the mesh.
|
|
/// </param>
|
|
/// <param name="trackingToWorldSpace">
|
|
/// Specify whether or not the position of the mesh transform have to be converted from tracking space to world space.
|
|
/// </param>
|
|
/// <param name="convertFromUnityToOpenXR">
|
|
/// Specify whether the parameter
|
|
/// <paramref name="meshPosition"/> have to be converted for OpenXR.
|
|
/// </param>
|
|
public static bool SetProjectedPassthroughMeshPosition(int passthroughID, Vector3 meshPosition, bool trackingToWorldSpace = true, bool convertFromUnityToOpenXR = true)
|
|
{
|
|
if (!checkPassthroughFeatureInstance())
|
|
{
|
|
ERROR("HTC_Passthrough feature instance not found.");
|
|
return false;
|
|
}
|
|
|
|
Vector3 trackingSpaceMeshPosition = meshPosition;
|
|
TrackingSpaceOrigin currentTrackingSpaceOrigin = TrackingSpaceOrigin.Instance;
|
|
|
|
if (currentTrackingSpaceOrigin != null && trackingToWorldSpace) //Apply origin correction to the mesh pose
|
|
{
|
|
Matrix4x4 trackingSpaceOriginTRS = Matrix4x4.TRS(currentTrackingSpaceOrigin.transform.position, Quaternion.identity, Vector3.one);
|
|
Matrix4x4 worldSpaceLayerPoseTRS = Matrix4x4.TRS(meshPosition, Quaternion.identity, Vector3.one);
|
|
|
|
Matrix4x4 trackingSpaceLayerPoseTRS = trackingSpaceOriginTRS.inverse * worldSpaceLayerPoseTRS;
|
|
|
|
trackingSpaceMeshPosition = trackingSpaceLayerPoseTRS.GetColumn(3); //4th Column of TRS Matrix is the position
|
|
}
|
|
|
|
return passthroughFeature.HTCPassthrough_SetMeshTransformPosition(passthroughID, OpenXRHelper.ToOpenXRVector(trackingSpaceMeshPosition, convertFromUnityToOpenXR));
|
|
}
|
|
|
|
/// <summary>
|
|
/// For modifying the mesh orientation of a projected passthrough layer.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// True for successfully modifying the mesh orientation of the projected passthrough, vice versa.
|
|
/// </returns>
|
|
/// <param name="passthroughID">
|
|
/// The ID of the target passthrough.
|
|
/// </param>
|
|
/// <param name="meshOrientation">
|
|
/// Orientation of the mesh.
|
|
/// </param>
|
|
/// <param name="trackingToWorldSpace">
|
|
/// Specify whether or not the rotation of the mesh transform have to be converted from tracking space to world space.
|
|
/// </param>
|
|
/// <param name="convertFromUnityToOpenXR">
|
|
/// Specify whether the parameter
|
|
/// <paramref name="meshOrientation"/> have to be converted for OpenXR.
|
|
/// </param>
|
|
public static bool SetProjectedPassthroughMeshOrientation(int passthroughID, Quaternion meshOrientation, bool trackingToWorldSpace = true, bool convertFromUnityToOpenXR = true)
|
|
{
|
|
if (!checkPassthroughFeatureInstance())
|
|
{
|
|
ERROR("HTC_Passthrough feature instance not found.");
|
|
return false;
|
|
}
|
|
|
|
Quaternion trackingSpaceMeshRotation = meshOrientation;
|
|
TrackingSpaceOrigin currentTrackingSpaceOrigin = TrackingSpaceOrigin.Instance;
|
|
|
|
if (currentTrackingSpaceOrigin != null && trackingToWorldSpace) //Apply origin correction to the mesh pose
|
|
{
|
|
Matrix4x4 trackingSpaceOriginTRS = Matrix4x4.TRS(Vector3.zero, currentTrackingSpaceOrigin.transform.rotation, Vector3.one);
|
|
Matrix4x4 worldSpaceLayerPoseTRS = Matrix4x4.TRS(Vector3.zero, meshOrientation, Vector3.one);
|
|
|
|
Matrix4x4 trackingSpaceLayerPoseTRS = trackingSpaceOriginTRS.inverse * worldSpaceLayerPoseTRS;
|
|
|
|
trackingSpaceMeshRotation = Quaternion.LookRotation(trackingSpaceLayerPoseTRS.GetColumn(2), trackingSpaceLayerPoseTRS.GetColumn(1));
|
|
}
|
|
|
|
return passthroughFeature.HTCPassthrough_SetMeshTransformOrientation(passthroughID, OpenXRHelper.ToOpenXRQuaternion(trackingSpaceMeshRotation, convertFromUnityToOpenXR));
|
|
}
|
|
|
|
/// <summary>
|
|
/// For modifying the mesh scale of a passthrough layer.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// True for successfully modifying the mesh data of the projected passthrough, vice versa.
|
|
/// </returns>
|
|
/// <param name="passthroughID">
|
|
/// The ID of the target passthrough.
|
|
/// </param>
|
|
/// <param name="meshScale">
|
|
/// Scale of the mesh.
|
|
/// </param>
|
|
public static bool SetProjectedPassthroughScale(int passthroughID, Vector3 meshScale)
|
|
{
|
|
if (!checkPassthroughFeatureInstance())
|
|
{
|
|
ERROR("HTC_Passthrough feature instance not found.");
|
|
return false;
|
|
}
|
|
|
|
return passthroughFeature.HTCPassthrough_SetMeshTransformScale(passthroughID, OpenXRHelper.ToOpenXRVector(meshScale, false));
|
|
}
|
|
|
|
/// <summary>
|
|
/// To get the list of IDs of active passthrough layers.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// The a copy of the list of IDs of active passthrough layers.
|
|
/// </returns>
|
|
public static List<int> GetCurrentPassthroughLayerIDs()
|
|
{
|
|
if (!checkPassthroughFeatureInstance())
|
|
{
|
|
ERROR("HTC_Passthrough feature instance not found.");
|
|
return null;
|
|
}
|
|
|
|
return passthroughFeature.PassthroughIDList;
|
|
}
|
|
#endregion
|
|
}
|
|
} |