public static string buildImageName(Texture2D image)
{
string extension = GLTFTextureUtils.useJPGTexture(image) ? ".jpg": ".png";
//return image.GetInstanceID().ToString().Replace("-", "") + "_" + image.name + extension;
return(image.name + extension);
}
public void registerImageFromData(byte[] imageData, int imageID, string imageName = "")
{
Texture2D texture = new Texture2D(4, 4);
texture.name = imageName;
texture.LoadImage(imageData);
GL.sRGBWrite = true;
saveTexture(GLTFTextureUtils.flipTexture(texture), imageID);
}
public Texture2D flipTexture(Texture2D texture)
{
if (!_flippedTextures.ContainsKey(texture))
{
Texture2D flipped = GLTFTextureUtils.flipTexture(texture);
_flippedTextures.Add(texture, flipped);
}
return(_flippedTextures[texture]);
}
public Texture2D handleNormalMap(Texture2D texture)
{
if (!_convertedBump.ContainsKey(texture))
{
Texture2D tex = GLTFTextureUtils.handleNormalMap(texture);
_convertedBump.Add(texture, tex);
}
return(_convertedBump[texture]);
}
public Texture2D packOcclusionMetalRough(Texture2D metalSmooth, Texture2D occlusion)
{
KeyValuePair <Texture2D, Texture2D> key = new KeyValuePair <Texture2D, Texture2D>(metalSmooth, occlusion);
if (!_packedTextures.ContainsKey(key))
{
Texture2D tex = GLTFTextureUtils.packOcclusionMetalRough(metalSmooth, occlusion);
_packedTextures.Add(key, tex);
}
return(_packedTextures[key]);
}
public Texture2D saveTexture(Texture2D texture, int index = -1, string imageName = "")
{
string basename = GLTFUtils.cleanName(texture.name + (index >= 0 ? "_" + index.ToString() : "") + ".png"); // Extension will be overridden
string fullPath = Path.Combine(_importTexturesDirectory, basename);
// Write texture
string newAssetPath = GLTFTextureUtils.writeTextureOnDisk(texture, fullPath, true);
// Reload as asset
string projectPath = GLTFUtils.getPathProjectFromAbsolute(newAssetPath);
Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(projectPath, typeof(Texture2D));
_parsedImages.Add(tex);
return(tex);
}
public List <UnityEngine.Texture2D> splitMetalRoughTexture(Texture2D inputTexture, bool hasOcclusion, float metallicFactor, float roughnessFactor)
{
string inputTexturePath = AssetDatabase.GetAssetPath(inputTexture);
if (!_assetsToRemove.Contains(inputTexturePath))
{
_assetsToRemove.Add(inputTexturePath);
}
List <UnityEngine.Texture2D> outputs = new List <UnityEngine.Texture2D>();
#if true
int width = inputTexture.width;
int height = inputTexture.height;
Color[] occlusion = new Color[width * height];
Color[] metalRough = new Color[width * height];
Color[] textureColors = new Color[width * height];
GLTFUtils.getPixelsFromTexture(ref inputTexture, out textureColors);
for (int i = 0; i < height; ++i)
{
for (int j = 0; j < width; ++j)
{
float occ = textureColors[i * width + j].r;
float rough = textureColors[i * width + j].g;
float met = textureColors[i * width + j].b;
occlusion[i * width + j] = new Color(occ, occ, occ, 1.0f);
metalRough[i * width + j] = new Color(met * metallicFactor, met * metallicFactor, met * metallicFactor, (1.0f - rough) * roughnessFactor);
}
}
Texture2D metalRoughTexture = new Texture2D(width, height, TextureFormat.ARGB32, true);
metalRoughTexture.name = Path.GetFileNameWithoutExtension(inputTexturePath) + "_metal";
metalRoughTexture.SetPixels(metalRough);
metalRoughTexture.Apply();
outputs.Add(_assetManager.saveTexture(metalRoughTexture));
if (hasOcclusion)
{
Texture2D occlusionTexture = new Texture2D(width, height);
occlusionTexture.name = Path.GetFileNameWithoutExtension(inputTexturePath) + "_occlusion";
occlusionTexture.SetPixels(occlusion);
occlusionTexture.Apply();
outputs.Add(_assetManager.saveTexture(occlusionTexture));
}
// Delete original texture
AssetDatabase.Refresh();
#else
string inputTextureName = Path.GetFileNameWithoutExtension(inputTexturePath);
string metalRoughPath = Path.Combine(_assetManager.getImportTextureDir(), inputTextureName + "_metal.png");
GLTFTextureUtils.extractMetalRough(inputTexture, metalRoughPath);
outputs.Add(AssetDatabase.LoadAssetAtPath <Texture2D>(GLTFUtils.getPathProjectFromAbsolute(metalRoughPath)));
if (hasOcclusion)
{
string occlusionPath = Path.Combine(_assetManager.getImportTextureDir(), inputTextureName + "_occlusion.png");
GLTFTextureUtils.extractOcclusion(inputTexture, occlusionPath);
outputs.Add(AssetDatabase.LoadAssetAtPath <Texture2D>(GLTFUtils.getPathProjectFromAbsolute(occlusionPath)));
}
#endif
return(outputs);
}
