PhotoCapture

class in UnityEngine.XR.WSA.WebCam

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Description

捕捉来自网络摄像机的照片并存储在内存中或磁盘上。

演示如何使用 PhotoCapture 功能拍摄照片并将照片显示在 Unity 游戏对象上。

using UnityEngine;
using System.Collections;
using System.Linq;
using UnityEngine.XR.WSA.WebCam;

public class PhotoCaptureExample : MonoBehaviour { PhotoCapture photoCaptureObject = null; Texture2D targetTexture = null;

// Use this for initialization void Start() { Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First(); targetTexture = new Texture2D(cameraResolution.width, cameraResolution.height);

// Create a PhotoCapture object PhotoCapture.CreateAsync(false, delegate(PhotoCapture captureObject) { photoCaptureObject = captureObject; CameraParameters cameraParameters = new CameraParameters(); cameraParameters.hologramOpacity = 0.0f; cameraParameters.cameraResolutionWidth = cameraResolution.width; cameraParameters.cameraResolutionHeight = cameraResolution.height; cameraParameters.pixelFormat = CapturePixelFormat.BGRA32;

// Activate the camera photoCaptureObject.StartPhotoModeAsync(cameraParameters, delegate(PhotoCapture.PhotoCaptureResult result) { // Take a picture photoCaptureObject.TakePhotoAsync(OnCapturedPhotoToMemory); }); }); }

void OnCapturedPhotoToMemory(PhotoCapture.PhotoCaptureResult result, PhotoCaptureFrame photoCaptureFrame) { // Copy the raw image data into our target texture photoCaptureFrame.UploadImageDataToTexture(targetTexture);

// Create a gameobject that we can apply our texture to GameObject quad = GameObject.CreatePrimitive(PrimitiveType.Quad); Renderer quadRenderer = quad.GetComponent<Renderer>() as Renderer; quadRenderer.material = new Material(Shader.Find("Unlit/Texture"));

quad.transform.parent = this.transform; quad.transform.localPosition = new Vector3(0.0f, 0.0f, 3.0f);

quadRenderer.material.SetTexture("_MainTex", targetTexture);

// Deactivate our camera photoCaptureObject.StopPhotoModeAsync(OnStoppedPhotoMode); }

void OnStoppedPhotoMode(PhotoCapture.PhotoCaptureResult result) { // Shutdown our photo capture resource photoCaptureObject.Dispose(); photoCaptureObject = null; } }

Static Variables

SupportedResolutions用于拍摄照片的所有受支持的设备分辨率列表。

Public Functions

Dispose必须调用 Dispose 来关闭 PhotoCapture 实例。
GetUnsafePointerToVideoDeviceController为原生 IVideoDeviceController 提供 COM 指针。
StartPhotoModeAsync异步启动照片模式。
StopPhotoModeAsync异步停止照片模式。
TakePhotoAsync使用网络摄像机异步捕捉照片并将照片存储在磁盘上。

Static Functions

CreateAsync异步创建可用于捕捉照片的 PhotoCapture 对象的实例。

Delegates

OnCapturedToDiskCallback在照片被保存到文件系统时调用。
OnCapturedToMemoryCallback在照片被捕捉到内存中时调用。
OnCaptureResourceCreatedCallback在创建 PhotoCapture 资源时调用。
OnPhotoModeStartedCallback在照片模式启动时调用。
OnPhotoModeStoppedCallback在照片模式停止时调用。