unity自定义截图

最新推荐文章于 2024-08-10 15:55:30 发布

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#unity #printscreen #user-defined

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本文介绍了一种在Unity中自定义截图的方法，包括通过编辑器界面设置截图尺寸、保存路径和文件名，支持相机尺寸、屏幕分辨率和固定尺寸三种截图方式。通过挂载到相机的`CameraDefined`脚本，可以方便地保存高质量的纹理到指定位置。

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using UnityEditor;
using UnityEngine;

[CanEditMultipleObjects]
[CustomEditor(typeof(CameraDefined))]
public class CameraEditor : Editor
{

   public override void OnInspectorGUI()
   {
       // 属性
       CameraDefined script = (CameraDefined)target;
       int selected = (int)script.captureSize;

       // GUI
       EditorGUI.BeginChangeCheck();
       drawProperty("targetCamera", "目标像机");

//属性设置三种截图方式
       string[] options = new string[] { "像机", "屏幕", "自定义" };
       selected = EditorGUILayout.Popup("截图尺寸", selected, options, GUILayout.ExpandWidth(true));
       script.captureSize = (CameraDefined.CaptureSize)selected;
       if (script.captureSize == CameraDefined.CaptureSize.FixedSize)
       {
           drawProperty("pixelSize", "像素尺寸");
           EditorGUILayout.HelpBox("保持正确的宽高比！/n否则截图区域会出问题。", MessageType.Info);
       }
       drawProperty("savePath", "保存路径");
       drawProperty("fileName", "文件名");

       // 保存截图按钮
       bool isPress = GUILayout.Button("保存截图", GUILayout.ExpandWidth(true));
       if (isPress) script.saveCapture();
       if (EditorGUI.EndChangeCheck()) serializedObject.ApplyModifiedProperties();
   }

   private void drawProperty(string property, string label)
   {
       EditorGUILayout.PropertyField(serializedObject.FindProperty(property), new GUIContent(label), true);
   }

}

using UnityEngine;
using System.IO;

///挂载到相机
public class CameraDefined: MonoBehaviour
{

   // 截图尺寸
   public enum CaptureSize
   {
       CameraSize,
       ScreenResolution,
       FixedSize
   }

   // 目标摄像机
   public Camera targetCamera;
   // 截图的尺寸
   public CaptureSize captureSize = CaptureSize.CameraSize;
   // 像素
   public Vector2 pixelSize;
   // 保存路径
   public string savePath = "StreamingAssets/";
   // 文件名称
   public string fileName = "cameradefined.png";
   private void Reset()
   {
       targetCamera = GetComponent<Camera>();
       pixelSize = new Vector2(Screen.currentResolution.width, Screen.currentResolution.height);
   }

//保存截图
   public void saveCapture()
   {
       Vector2 size = pixelSize;
       if (captureSize == CaptureSize.CameraSize)
       {
           size = new Vector2(targetCamera.pixelWidth, targetCamera.pixelHeight);
       }
       else if (captureSize == CaptureSize.ScreenResolution)
       {
           size = new Vector2(Screen.currentResolution.width, Screen.currentResolution.height);
       }
       string path = Application.dataPath + "/" + savePath + fileName;
       saveTexture(path, capture(targetCamera, (int)size.x, (int)size.y));
   }

//截图
   public static Texture2D capture(Camera camera)
   {
       return capture(camera, Screen.width, Screen.height);
   }

   public static Texture2D capture(Camera camera, int width, int height)
   {
       RenderTexture rt = new RenderTexture(width, height, 0);
       rt.depth = 24;
       rt.antiAliasing = 8;
       camera.targetTexture = rt;
       camera.RenderDontRestore();
       RenderTexture.active = rt;
       Texture2D texture = new Texture2D(width, height, TextureFormat.ARGB32, false, true);
       Rect rect = new Rect(0, 0, width, height);
       texture.ReadPixels(rect, 0, 0);
       texture.filterMode = FilterMode.Point;
       texture.Apply();
       camera.targetTexture = null;
       RenderTexture.active = null;
       //Destroy(rt);
       return texture;
   }

   //保存贴图

   public static void saveTexture(string path, Texture2D texture)
   {
       File.WriteAllBytes(path, texture.EncodeToPNG());
       Debug.Log("已截屏并保存截图到:" + path);
   }

}