unity3d摄像机输出图片代码

以下是 Unity3D 摄像机输出图片的代码示例：

using UnityEngine;

public class CameraCapture : MonoBehaviour
{
    public Camera cameraToCapture;
    public string savePath = "Assets/CapturedImage.png";

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            Capture();
        }
    }

    void Capture()
    {
        RenderTexture renderTexture = cameraToCapture.targetTexture;
        Texture2D texture = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.RGB24, false);
        cameraToCapture.Render();
        RenderTexture.active = renderTexture;
        texture.ReadPixels(new Rect(0, 0, renderTexture.width, renderTexture.height), 0, 0);
        texture.Apply();
        RenderTexture.active = null;
        byte[] bytes = texture.EncodeToPNG();
        System.IO.File.WriteAllBytes(savePath, bytes);
        Debug.Log("Image captured and saved to " + savePath);
    }
}

这段代码可以让你在 Unity3D 中捕获摄像机的输出图像，并将其保存为 PNG 图片。你可以将其添加到一个空对象上，并将需要捕获的摄像机指定为 `cameraToCapture` 变量。按下空格键即可触发捕获操作。