/// <summary>
/// 画像のバイト列を得る
/// </summary>
/// <param name="bytes"></param>
/// <param name="texture"></param>
/// <returns></returns>
static (byte[] bytes, string mine) GetBytesWithMime(Texture2D texture)
{
#if UNITY_EDITOR
var path = UnityPath.FromAsset(texture);
if (path.IsUnderAssetsFolder)
{
if (path.Extension == ".png")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/png"
);
}
if (path.Extension == ".jpg")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/jpeg"
);
}
}
#endif
return
(
texture.EncodeToPNG(),
"image/png"
);
}
static BytesWithMime GetBytesWithMime(Texture texture, glTFTextureTypes textureType)
{
#if UNITY_EDITOR
var path = UnityPath.FromAsset(texture);
if (path.IsUnderAssetsFolder)
{
if (path.Extension == ".png")
{
return(new BytesWithMime
{
Bytes = System.IO.File.ReadAllBytes(path.FullPath),
Mime = "image/png",
});
}
if (path.Extension == ".jpg")
{
return(new BytesWithMime
{
Bytes = System.IO.File.ReadAllBytes(path.FullPath),
Mime = "image/jpeg",
});
}
}
#endif
return(new BytesWithMime
{
Bytes = TextureItem.CopyTexture(texture, TextureIO.GetColorSpace(textureType), null).EncodeToPNG(),
Mime = "image/png",
});
}
public virtual (Byte[] bytes, string mine) GetBytesWithMime(Texture texture, glTFTextureTypes textureType)
{
#if UNITY_EDITOR
var path = UnityPath.FromAsset(texture);
if (path.IsUnderAssetsFolder)
{
var textureImporter = AssetImporter.GetAtPath(path.Value) as TextureImporter;
var getSizeMethod = typeof(TextureImporter).GetMethod("GetWidthAndHeight", BindingFlags.NonPublic | BindingFlags.Instance);
if (textureImporter != null && getSizeMethod != null)
{
var args = new object[2] {
0, 0
};
getSizeMethod.Invoke(textureImporter, args);
var originalWidth = (int)args[0];
var originalHeight = (int)args[1];
var originalSize = Mathf.Max(originalWidth, originalHeight);
var requiredMaxSize = textureImporter.maxTextureSize;
// Resized exporting if MaxSize setting value is smaller than original image size.
if (originalSize > requiredMaxSize)
{
return
(
TextureConverter.CopyTexture(texture, GetColorSpace(textureType), null).EncodeToPNG(),
"image/png"
);
}
}
if (path.Extension == ".png")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/png"
);
}
if (path.Extension == ".jpg")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/jpeg"
);
}
}
#endif
return
(
TextureConverter.CopyTexture(texture, TextureIO.GetColorSpace(textureType), null).EncodeToPNG(),
"image/png"
);
}
/// <summary>
/// 画像のバイト列を得る
/// </summary>
/// <param name="bytes"></param>
/// <param name="texture"></param>
/// <returns></returns>
static (byte[] bytes, string mine) GetBytesWithMime(Texture2D texture)
{
#if UNITY_EDITOR
var path = UnityPath.FromAsset(texture);
if (path.IsUnderAssetsFolder)
{
if (path.Extension == ".png")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/png"
);
}
if (path.Extension == ".jpg")
{
return
(
System.IO.File.ReadAllBytes(path.FullPath),
"image/jpeg"
);
}
}
#endif
try
{
var png = texture.EncodeToPNG();
if (png != null)
{
return(png, "image/png");
}
}
catch (Exception ex)
{
// fail to EncodeToPng
// System.ArgumentException: not readable, the texture memory can not be accessed from scripts. You can make the texture readable in the Texture Import Settings.
Debug.LogWarning(ex);
}
{
// try copy and EncodeToPng
var copy = TextureConverter.CopyTexture(texture, TextureImportTypes.sRGB, null);
var png = copy.EncodeToPNG();
UnityEngine.Object.DestroyImmediate(copy);
return(png, "image/png");
}
}
public static void ConfigureNormalMap(Texture2D texture)
{
var path = UnityPath.FromAsset(texture);
if (AssetImporter.GetAtPath(path.Value) is TextureImporter textureImporter)
{
#if VRM_DEVELOP
Debug.Log($"{path} => normalmap");
#endif
textureImporter.textureType = TextureImporterType.NormalMap;
textureImporter.SaveAndReimport();
}
else
{
throw new System.IO.FileNotFoundException($"{path}");
}
}
public static void ConfigureLinear(Texture2D texture)
{
var path = UnityPath.FromAsset(texture);
if (AssetImporter.GetAtPath(path.Value) is TextureImporter textureImporter)
{
#if VRM_DEVELOP
Debug.Log($"{path} => linear");
#endif
textureImporter.sRGBTexture = false;
textureImporter.SaveAndReimport();
}
else
{
throw new System.IO.FileNotFoundException($"{path}");
}
}
public static void ConfigureSize(Texture2D texture)
{
var path = UnityPath.FromAsset(texture);
if (AssetImporter.GetAtPath(path.Value) is TextureImporter textureImporter)
{
var maxSize = Mathf.Max(texture.width, texture.height);
textureImporter.maxTextureSize
= maxSize > 4096 ? 8192 :
maxSize > 2048 ? 4096 :
maxSize > 1024 ? 2048 :
maxSize > 512 ? 1024 :
512;
textureImporter.SaveAndReimport();
}
else
{
throw new System.IO.FileNotFoundException($"{path}");
}
}
/// <summary>
/// TextureImporter.maxTextureSize が元のテクスチャーより小さいか否かの判定
/// </summary>
/// <param name="src"></param>
/// <returns></returns>
static bool CopyIfMaxTextureSizeIsSmaller(Texture src)
{
#if UNITY_EDITOR
var textureImporter = AssetImporter.GetAtPath(UnityPath.FromAsset(src).Value) as TextureImporter;
var getSizeMethod = typeof(TextureImporter).GetMethod("GetWidthAndHeight", BindingFlags.NonPublic | BindingFlags.Instance);
if (textureImporter != null && getSizeMethod != null)
{
var args = new object[2] {
0, 0
};
getSizeMethod.Invoke(textureImporter, args);
var originalWidth = (int)args[0];
var originalHeight = (int)args[1];
var originalSize = Mathf.Max(originalWidth, originalHeight);
if (textureImporter.maxTextureSize < originalSize)
{
return(true);
}
}
#endif
return(false);
}
static void CopySRGBWrite(bool isSRGB)
{
var src = Selection.activeObject as Texture;
var texturePath = UnityPath.FromAsset(src);
var path = EditorUtility.SaveFilePanel("save prefab", "Assets",
Path.GetFileNameWithoutExtension(AddPath(texturePath.FullPath, ".sRGB")), "prefab");
var assetPath = UnityPath.FromFullpath(path);
if (!assetPath.IsUnderAssetsFolder)
{
return;
}
Debug.LogFormat("[CopySRGBWrite] {0} => {1}", texturePath, assetPath);
var renderTexture = new RenderTexture(src.width, src.height, 0,
RenderTextureFormat.ARGB32,
RenderTextureReadWrite.sRGB);
using (var scope = new ColorSpaceScope(isSRGB))
{
Graphics.Blit(src, renderTexture);
}
var dst = new Texture2D(src.width, src.height, TextureFormat.ARGB32, false,
RenderTextureReadWrite.sRGB == RenderTextureReadWrite.Linear);
dst.ReadPixels(new Rect(0, 0, src.width, src.height), 0, 0);
dst.Apply();
RenderTexture.active = null;
assetPath.CreateAsset(dst);
GameObject.DestroyImmediate(renderTexture);
}