├── README.md
└── zxing.unity.dll


/README.md:
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 1 | # qr-code-unity-3d-read-generate
 2 | Generating a QR code / Scanning a QR code in Unity 3D
 3 | 
 4 | At least at the time when I needed this feature, there were barely any usable tutorials or QR libraries ready to use for Unity (given the older .net framework it uses).
 5 | 
 6 | Took me a few days of trial and error until finding and properly building the ZXing library DLL which you can find in the repo.
 7 | 
 8 | # Read a QR
 9 | ```
10 | using ZXing;
11 | using ZXing.QrCode;
12 | 
13 | private WebCamTexture camTexture;
14 | private Rect screenRect;
15 | void Start() {
16 |   screenRect = new Rect(0, 0, Screen.width, Screen.height);
17 |   camTexture = new WebCamTexture();
18 |   camTexture.requestedHeight = Screen.height;
19 |   camTexture.requestedWidth = Screen.width;
20 |   if (camTexture != null) {
21 |     camTexture.Play();
22 |   }
23 | }
24 | 
25 | void OnGUI () {
26 |   // drawing the camera on screen
27 |   GUI.DrawTexture (screenRect, camTexture, ScaleMode.ScaleToFit);
28 |   // do the reading — you might want to attempt to read less often than you draw on the screen for performance sake
29 |   try {
30 |     IBarcodeReader barcodeReader = new BarcodeReader ();
31 |     // decode the current frame
32 |     var result = barcodeReader.Decode(camTexture.GetPixels32(), camTexture.width , camTexture.height);
33 |     if (result != null) {
34 |       Debug.Log(“DECODED TEXT FROM QR: “ + result.Text);
35 |     }
36 |   } catch(Exception ex) { Debug.LogWarning (ex.Message); }
37 | }
38 | ```
39 | 
40 | 
41 | # Generate one
42 | ```
43 | private static Color32[] Encode(string textForEncoding, int width, int height) {
44 |   var writer = new BarcodeWriter {
45 |     Format = BarcodeFormat.QR_CODE,
46 |     Options = new QrCodeEncodingOptions {
47 |       Height = height,
48 |       Width = width
49 |     }
50 |   };
51 |   return writer.Write(textForEncoding);
52 | }
53 | 
54 | public Texture2D generateQR(string text) {
55 |   var encoded = new Texture2D (256, 256);
56 |   var color32 = Encode(text, encoded.width, encoded.height);
57 |   encoded.SetPixels32(color32);
58 |   encoded.Apply();
59 |   return encoded;
60 | }
61 | 
62 | Texture2D myQR = generateQR("test");
63 | if (GUI.Button (new Rect (300, 300, 256, 256), myQR, GUIStyle.none)) {}
64 | ```
65 | 
66 | 
67 | I am using Unity 5.3.5
68 | 


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/zxing.unity.dll:
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https://raw.githubusercontent.com/nenuadrian/qr-code-unity-3d-read-generate/cef5224b90c331fd15cc52d44f4bcf860e0b49dc/zxing.unity.dll


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