Unity打开摄像头并显示在UI

需求:

打开相机并显示在UI上

效果:

注意：

电脑可能有多个摄像头，注意名称

代码: using System; using System.Linq; using UnityEngine; using UnityEngine.UI; using System.Collections.Generic; #if UNITY_EDITOR using UnityEditor; #endif namespace Streamlab.XingJiKongLong { #if UNITY_EDITOR [CustomEditor(typeof(RealCameraDeviceManager))] public class RealCameraDeviceManagerEditor : Editor { private RealCameraDeviceManager script; private void OnEnable() { script = (RealCameraDeviceManager)target; } public override void OnInspectorGUI() { base.OnInspectorGUI(); GUILayout.BeginHorizontal(); { if (GUILayout.Button("初始化", GUILayout.Height(50))) { script.InitDevices(); } if (GUILayout.Button("打开", GUILayout.Height(50))) { script.Play(); } if (GUILayout.Button("关闭", GUILayout.Height(50))) { script.Stop(); } if (GUILayout.Button("暂停", GUILayout.Height(50))) { script.Pause(); } } GUILayout.EndHorizontal(); } } #endif public class RealCameraDeviceManager : MonoBehaviour { public bool Inited = false; public bool IsPlaying = false; private WebCamDevice CurrentWebCamDevice; private WebCamTexture CurrentWebCamTexture; public RawImage image; /// <summary> /// 默认摄像头设备名称 /// </summary> public string DefaultWebCamDeviceName = "USB2.0 PC CAMERA"; public List<string> WebCamDevice = new List<string>(); public void InitDevices() { WebCamDevice[] devices = WebCamTexture.devices; if (devices.Length == 0) { throw new Exception("暂未识别到摄像头设备,请检查摄像头有没有"); } else { WebCamDevice.Clear(); foreach (var item in devices) { Debug.Log($"摄像头设备【{item.name}】"); WebCamDevice.Add(item.name); } } if (string.IsNullOrEmpty(DefaultWebCamDeviceName)) { DefaultWebCamDeviceName = devices[0].name; } CurrentWebCamDevice = devices.Where(x => x.name == DefaultWebCamDeviceName).FirstOrDefault(); CurrentWebCamTexture = new WebCamTexture(CurrentWebCamDevice.name); if (image == null) { throw new Exception("未指定显示摄像头的UI"); } image.texture = CurrentWebCamTexture; Inited = true; } public void Play() { if (Inited == false) { throw new Exception("未初始化摄像头设备"); } CurrentWebCamTexture.Play(); IsPlaying = true; } public void Stop() { if (Inited == false) { throw new Exception("未初始化摄像头设备"); } CurrentWebCamTexture.Stop(); IsPlaying = false; } public void Pause() { if (Inited == false) { throw new Exception("未初始化摄像头设备"); } CurrentWebCamTexture.Pause(); IsPlaying = false; } } }

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