{"id":5690,"date":"2024-06-05T18:05:12","date_gmt":"2024-06-05T10:05:12","guid":{"rendered":"http:\/\/blog.coolcoding.cn\/?p=5690"},"modified":"2024-06-05T18:12:17","modified_gmt":"2024-06-05T10:12:17","slug":"%e7%be%8e%e6%9c%af%e5%b7%a5%e5%85%b7%ef%bc%9a%e6%88%aa%e5%8d%8a%e9%80%8f%e6%98%8eui","status":"publish","type":"post","link":"https:\/\/blog.coolcoding.cn\/?p=5690","title":{"rendered":"\u7f8e\u672f\u5de5\u5177\uff1a\u622a\u534a\u900f\u660eUI"},"content":{"rendered":"\n

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#if UNITY_EDITOR\n\nusing UnityEngine;\nusing UnityEditor;\nusing System.Collections;\nusing System;\nusing System.IO;\n\npublic class CaptureTransparentUI: MonoBehaviour\n{\n    [MenuItem(\"Tools\/CaptureTransparentUI\")]\n    public static void Capture()\n    {\n        var baseCameraObj = GameObject.Find(\"\u3010\u4e3b\u6444\u50cf\u673a\u7684\u8def\u5f84\u3011\");\n        if (baseCameraObj != null)\n        {\n            baseCameraObj.AddComponent<CaptureTransparentUI>();\n        }\n    }\n\n    void Start()\n    {\n        var time = DateTime.Now.ToString(\"yyyy-MM-dd HH.mm.ss\");\n        StartCoroutine(CaptureTask($\"Assets\/{time}.png\"));\n    }\n\n    IEnumerator CaptureTask(string outputFilename)\n    {\n        var camera = GetComponent<Camera>();\n        if (camera == null)\n        {\n            yield break;\n        }\n\n        const string whiteFilename = \"white.png\";\n        const string blackFilename = \"black.png\";\n\n        yield return new WaitForEndOfFrame();\n        camera.backgroundColor = Color.white;\n        yield return new WaitForEndOfFrame();\n        yield return new WaitForEndOfFrame();\n        ScreenCapture.CaptureScreenshot(whiteFilename);\n        yield return new WaitForEndOfFrame();\n        yield return new WaitForEndOfFrame();\n        camera.backgroundColor = Color.clear;\n        yield return new WaitForEndOfFrame();\n        yield return new WaitForEndOfFrame();\n        ScreenCapture.CaptureScreenshot(blackFilename);\n        yield return new WaitForEndOfFrame();\n        yield return new WaitForEndOfFrame();\n\n        var textureBlack = new Texture2D(2, 2);\n        textureBlack.LoadImage(System.IO.File.ReadAllBytes(blackFilename));\n\n        var textureWhite = new Texture2D(2, 2);\n        textureWhite.LoadImage(System.IO.File.ReadAllBytes(whiteFilename));\n\n        var textureTransparentBackground = new Texture2D(textureBlack.width, textureBlack.height, TextureFormat.ARGB32, false);\n\n\n        for (int y = 0; y < textureBlack.height; ++y)\n        {\n            for (int x = 0; x < textureBlack.width; ++x)\n            {\n                var blackPixel = textureBlack.GetPixel(x, y);\n                var whitePixel = textureWhite.GetPixel(x, y);\n                textureTransparentBackground.SetPixel(x, y, LerpColor(whitePixel, blackPixel));\n            }\n        }\n\n        var pngShot = textureTransparentBackground.EncodeToPNG();\n        System.IO.File.WriteAllBytes(outputFilename, pngShot);\n        System.IO.File.Delete(whiteFilename);\n        System.IO.File.Delete(blackFilename);\n    }\n\n    static Color LerpColor(Color whitePixel, Color blackPixel)\n    {\n        float alpha = 1 - (whitePixel.r - blackPixel.r);\n        if (alpha == 0)\n        {\n            return new Color(0,0,0,alpha);\n        }\n        else\n        {\n            var color = blackPixel \/ alpha;\n            color.a = alpha;\n            return color;\n        }\n    }\n}\n\n#endif\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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