87 lines
2.3 KiB
C#
87 lines
2.3 KiB
C#
using System.Collections.Generic;
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using UnityEngine.XR.ARSubsystems;
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namespace UnityEngine.XR.ARFoundation
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{
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/// <summary>
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/// Renders an <see cref="ARPointCloud"/> as a <c>Mesh</c> with <c>MeshTopology.Points</c>.
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/// </summary>
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[RequireComponent(typeof(ARPointCloud))]
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[HelpURL(HelpUrls.ApiWithNamespace + nameof(ARPointCloudMeshVisualizer) + ".html")]
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public sealed class ARPointCloudMeshVisualizer : MonoBehaviour
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{
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/// <summary>
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/// Get the <c>Mesh</c> that this visualizer creates and manages.
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/// </summary>
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public Mesh mesh { get; private set; }
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void OnPointCloudChanged(ARPointCloudUpdatedEventArgs eventArgs)
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{
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s_Vertices.Clear();
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if (m_PointCloud.positions.HasValue)
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{
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foreach (var point in m_PointCloud.positions)
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s_Vertices.Add(point);
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}
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mesh.Clear();
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mesh.SetVertices(s_Vertices);
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var indices = new int[s_Vertices.Count];
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for (int i = 0; i < s_Vertices.Count; ++i)
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{
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indices[i] = i;
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}
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mesh.SetIndices(indices, MeshTopology.Points, 0);
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var meshFilter = GetComponent<MeshFilter>();
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if (meshFilter != null)
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meshFilter.sharedMesh = mesh;
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}
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void Awake()
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{
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mesh = new Mesh();
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m_PointCloud = GetComponent<ARPointCloud>();
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}
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void OnEnable()
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{
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m_PointCloud.updated += OnPointCloudChanged;
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UpdateVisibility();
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}
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void OnDisable()
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{
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m_PointCloud.updated -= OnPointCloudChanged;
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UpdateVisibility();
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}
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void Update()
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{
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UpdateVisibility();
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}
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void UpdateVisibility()
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{
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var visible =
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enabled &&
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(m_PointCloud.trackingState != TrackingState.None);
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SetVisible(visible);
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}
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void SetVisible(bool visible)
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{
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var meshRenderer = GetComponent<MeshRenderer>();
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if (meshRenderer != null)
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meshRenderer.enabled = visible;
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}
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ARPointCloud m_PointCloud;
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static List<Vector3> s_Vertices = new List<Vector3>();
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}
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}
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