async void Start()
{
// Create KTX texture instance
var texture = new KtxTexture();
// Linear color sampling. Needed for non-color value textures (e.g. normal maps)
bool linearColor = true;
// Load file from Streaming Assets folder (relative path)
var result = await texture.LoadFromStreamingAssets("trout.ktx", linearColor);
// Alternative: Load from URL
// var result = await texture.LoadFromUrl("https://myserver.com/trout.ktx", linearColor);
// Alternative: Load from memory
// var result = await texture.LoadFromBytes(nativeArray, linearColor);
if (result != null)
{
// Use texture. For example, apply texture to a material
targetMaterial.mainTexture = result.texture;
// Optional: Support arbitrary texture orientation by flipping the texture if necessary
var scale = targetMaterial.mainTextureScale;
scale.x = result.orientation.IsXFlipped() ? -1 : 1;
scale.y = result.orientation.IsYFlipped() ? -1 : 1;
targetMaterial.mainTextureScale = scale;
}
}
async void NeverEndingStoryLoop()
{
start_time = Time.realtimeSinceStartup;
if (currentType == ImageType.KTX)
{
while (!cancellationTokenSource.IsCancellationRequested)
{
var bt = new KtxTexture();
var result = await bt.LoadFromBytes(data, this);
if (cancellationTokenSource.IsCancellationRequested)
{
break;
}
ApplyTexture(result);
batch_time = Time.realtimeSinceStartup - start_time;
await Task.Yield();
}
}
else
{
while (!cancellationTokenSource.IsCancellationRequested)
{
var texture = new Texture2D(2, 2);
texture.LoadImage(data.ToArray(), true);
if (cancellationTokenSource.IsCancellationRequested)
{
break;
}
ApplyTexture(new TextureResult(texture, TextureOrientation.UNITY_DEFAULT));
batch_time = Time.realtimeSinceStartup - start_time;
await Task.Yield();
}
}
}
public KtxLoadNativeContext(int index, NativeSlice <byte> slice)
{
this.imageIndex = index;
this.slice = slice;
ktxTexture = new KtxTexture();
texture = null;
}
public KtxLoadContext(int index, byte[] data)
{
this.imageIndex = index;
this.data = data;
ktxTexture = new KtxTexture();
texture = null;
}
IEnumerator NeverEndingStory()
{
start_time = Time.realtimeSinceStartup;
if (currentType == ImageType.KTX)
{
while (true)
{
var bt = new KtxTexture();
bt.onTextureLoaded += ApplyTexture;
bt.LoadFromBytes(data, this);
batch_time = Time.realtimeSinceStartup - start_time;
yield return(null);
}
}
else
{
while (true)
{
var texture = new Texture2D(2, 2);
texture.LoadImage(data.ToArray(), true);
ApplyTexture(texture);
batch_time = Time.realtimeSinceStartup - start_time;
yield return(null);
}
}
}
void LoadBatch(int count)
{
Profiler.BeginSample("LoadBatch");
start_time = Time.realtimeSinceStartup;
batch_count = count;
batch_time = -1;
for (int i = 0; i < count; i++)
{
if (currentType == ImageType.KTX)
{
var bt = new KtxTexture();
bt.onTextureLoaded += ApplyTexture;
bt.LoadFromBytes(data, this);
}
else
{
var texture = new Texture2D(2, 2);
texture.LoadImage(data.ToArray(), true);
ApplyTexture(texture);
}
}
Profiler.EndSample();
}
async void LoadBatch(int count)
{
Profiler.BeginSample("LoadBatch");
start_time = Time.realtimeSinceStartup;
batch_count = count;
batch_time = -1;
for (int i = 0; i < count; i++)
{
if (currentType == ImageType.KTX)
{
var bt = new KtxTexture();
var result = await bt.LoadFromBytes(data, this);
ApplyTexture(result);
}
else
{
var texture = new Texture2D(2, 2);
texture.LoadImage(data.ToArray(), true);
ApplyTexture(new TextureResult(texture, TextureOrientation.UNITY_DEFAULT));
}
}
Profiler.EndSample();
}
public IEnumerator CreateTextureAsync(bool linear, Action <Texture2D, TextureOrientation> onFinish, string mimeType, Action <float> onProgress = null)
{
Texture2D tex = new Texture2D(2, 2, TextureFormat.ARGB32, true, linear);
bool loaded = false;
TextureOrientation orientation = new TextureOrientation();
//With GLTF, the mimeType stores the path, let's correct that mistake
if (!string.IsNullOrEmpty(mimeType))
{
if (File.Exists(mimeType))
{
path = mimeType;
mimeType = "image/" + Path.GetExtension(path).Remove(0, 1);
}
}
//Use KtxUnity plugin to load ktx/ktx2/basis textures
if (mimeType == "image/ktx" || mimeType == "image/ktx2" || mimeType == "image/basis")
{
#if !KTX
Debug.LogError("GLTFImage.cs CreateTextureAsync() KTX and basis texture support is not enabled, try enabling 'KTX' scripting define symbol in project settings and make sure KtxUnity plugin is in your project");
yield break;
#else
NativeArray <byte> data = new NativeArray <byte>(bytes, KtxNativeInstance.defaultAllocator);
TextureBase textureBase = null;
if (mimeType == "image/ktx" || mimeType == "image/ktx2")
{
textureBase = new KtxTexture();
}
else if (mimeType == "image/basis")
{
textureBase = new BasisUniversalTexture();
}
textureBase.onTextureLoaded += (Texture2D texture, KtxUnity.TextureOrientation ktxOrientation) =>
{
orientation.IsXFlipped = ktxOrientation.IsXFlipped();
orientation.IsYFlipped = ktxOrientation.IsYFlipped();
tex = texture;
//Rename the texture if we have a valid path variable (not available with .glb)
if (!string.IsNullOrEmpty(path))
{
tex.name = Path.GetFileNameWithoutExtension(path);
}
//
if (tex.name == "material1_normal")
{
Debug.Log("OnTextureLoaded() " + tex.name + "[ " + tex.width + " x " + tex.height + " ] Flipped[ " + orientation.IsXFlipped + " : " + orientation.IsYFlipped + " ]");
}
//
loaded = true;
};
yield return(StaticCoroutine.Start(textureBase.LoadBytesRoutine(data, true)));
data.Dispose();
#endif
}
else //Load .jpg, .jpeg, .png textures
{
orientation.IsXFlipped = false;
orientation.IsYFlipped = false;
tex.LoadImage(bytes);
loaded = true;
}
yield return(new WaitUntil(() =>
{
/*
* if( tex.name == "material1_basecolor" )
* Debug.Log( "WaitUntil() " + tex.name + "[ loaded = " + loaded + " ][ " + tex.width + " x " + tex.height + " ]" );
*/
return loaded;
}));
if (tex != null)
{
//Rename the texture if we have a valid path variable (not available with .glb)
if (!string.IsNullOrEmpty(path))
{
tex.name = Path.GetFileNameWithoutExtension(path);
}
/*
* if( tex.name == "material1_basecolor" )
* Debug.Log( "OnFinish() Transcoded " + tex.name + "[" + mimeType + "][ " + bytes.Length + " ][ " + tex.width + " x " + tex.height + " ]" );
*/
onFinish(tex, orientation);
}
else
{
Debug.Log("OnFinish() Unable To Transcode " + tex.name + "[" + mimeType + "][ " + bytes.Length + " ]");
}
} //END CreateTextureAsync()
