Unity 2D gallery processing, and cut out a small image, unity2d gallery Cutting

Unity 2D gallery processing, and cut out a small image, unity2d gallery Cutting

(Reprinted please indicate the source: http://blog.csdn.net/hongyouwei/article/details/45011315)

When we look for resources, we sometimes encounter a situation where we put a bunch of images into a png image. When we were playing a 2D game, we often need to cut the small images in the image, so the problem arises. How can we cut it? Now we provide a small image (note, generally, the image width and height required in Unity should be an integer multiple of 4, for example, 128*128:

Now we will import the image to Unity. If you select the image, you will see the Inspector interface above.

Then, set Texture Type to Advanced, for example:

Select Read/Write Enabled and Sprite Mode select Multiple, as shown in. Click Sprite Editor to go to the image cutting interface:

Click Slice in the upper left corner. In the upper right corner, select Grid as the Type. You can also select Automatic. Because I want to get three grids, the pixels here are X: 150 Y: 200. Click Slice directly to go to the following page, select each grid, and adjust it so that it can just side with its border, for example:

Click Apply for the preceding menu bar to obtain a cut Gallery. Now this gallery can be dragged out and used directly. But if you want to get a picture in it quickly, I will introduce you to a simple editor extension, I can see someone using it in the post bar and share it with you.

First, create a folder named Editor in Assets in the Unity Project window, and then create a script in it. The folder name is ImageSlicer, the next step is to open the script for encoding. Here I paste the Code directly, and then you can select the image, enter the Assets Directory, and select ImageSlider/Process to Sprites, then you can get a folder with a small image in it. Now you can paste the code and cut the result image:

Using UnityEngine; using System. collections; using UnityEditor; using System. IO; using System. collections. generic; public static class ImageSlicer {[MenuItem ("Assets/ImageSlicer/Process to Sprites")] static void ProcessToSprite () {Texture2D image = Selection. activeObject as Texture2D; // get the rotated object string rootPath = Path. getDirectoryName (AssetDatabase. getAssetPath (image); // obtain the path name string path = rootPath + "/" + I Mage. name + ". PNG "; // image path name TextureImporter texImp = AssetImporter. getAtPath (path) as TextureImporter; // obtain the image entry AssetDatabase. createFolder (rootPath, image. name); // create the folder foreach (SpriteMetaData metaData in texImp. spritesheet) // traverse the small gallery {Texture2D myimage = new Texture2D (int) metaData. rect. width, (int) metaData. rect. height); // abc_0 :( x: 2.00, y: 400.00, width: 103.00, height: 112.00) for (int y = (int) metaData. rec T. y; y <metaData. rect. y + metaData. rect. height; y ++) // y axis pixel {for (int x = (int) metaData. rect. x; x <metaData. rect. x + metaData. rect. width; x ++) myimage. setPixel (x-(int) metaData. rect. x, y-(int) metaData. rect. y, image. getPixel (x, y);} // convert the texture to the EncodeToPNG compatible format if (myimage. format! = TextureFormat. ARGB32 & myimage. format! = TextureFormat. RGB24) {Texture2D newTexture = new Texture2D (myimage. width, myimage. height); newTexture. setPixels (myimage. getPixels (0), 0); myimage = newTexture;} var pngData = myimage. encodeToPNG (); // AssetDatabase. createAsset (myimage, rootPath + "/" + image. name + "/" + metaData. name + ". PNG "); File. writeAllBytes (rootPath + "/" + image. name + "/" + metaData. name + ". PNG ", pngData); // refresh the resource window interface AssetDatabase. refresh ();}}}