koobas.hobune.stream
Get the real texture size?
I have some texture set to nearest power of 2. So if I have a 910x400, it will be scale to 1024x512.
Aspect ratio was 2.275:1 is now 2:1
It's possible to get the real size after the import? I want the original aspect ratio.
I can do it with System.Drawing.Bitmap and load the original file but I want to know if it's possible with only Unity.
It's possible to turn off automatic scaling of textures with dimensions that aren't powers of two. I don't know how Unity handles this under the hood, but I assume it would preserve the actual size of the image (e.g., when querying texture dimensions). Of course, it's better to use textures with power-of-two dimensions if possible.
To disable scaling, open the texture import settings window, set Texture Type to Advanced and change Non Power of 2 from To nearest to None.
I want to keep the scaling, but I want to adjust the aspect ratio correctly whe I use the texture
As far as I know there isn't an "official" way to retrieve the size before scaling. However, you might try the approach discussed in this forum thread: Getting original size of texture asset in pixels.
I prefer to use System.Drawing.Bitmap without using reflection with the importer. In both cases we need to store that information somewhere and use it later. Thanks anyways!
public static void GetTextureRealWidthAndHeight(TextureImporter texImpoter, ref int width, ref int height)
{
System.Type type = typeof(TextureImporter);
System.Reflection.MethodInfo method = type.GetMethod("GetWidthAndHeight", BindingFlags.Instance | BindingFlags.NonPublic);
var args = new object[] { width, height };
method.Invoke(texImpoter, args);
width = (int)args[0];
height = (int)args[1];
}
