public static Texture2D ExtractHoudiniImageToTextureFile(HEU_SessionBase session, HAPI_MaterialInfo materialInfo, string imagePlanes, string assetCacheFolderPath)
{
Texture2D textureResult = null;
// Get the Textures folder in the assetCacheFolderPath. Make sure it exists.
assetCacheFolderPath = HEU_AssetDatabase.AppendTexturesPathToAssetFolder(assetCacheFolderPath);
HEU_AssetDatabase.CreatePathWithFolders(assetCacheFolderPath);
// Need to pass in full path to Houdini to write out the file
assetCacheFolderPath = HEU_AssetDatabase.GetAssetFullPath(assetCacheFolderPath);
if (assetCacheFolderPath == null)
{
return textureResult;
}
HAPI_ImageInfo imageInfo = new HAPI_ImageInfo();
if (!session.GetImageInfo(materialInfo.nodeId, ref imageInfo))
{
return textureResult;
}
// This will return null if the current imageInfo file format is supported by Unity, otherwise
// returns a Unity supported file format.
string desiredFileFormatName = HEU_MaterialData.GetSupportedFileFormat(session, ref imageInfo);
// Extract image to file
string writtenFilePath = null;
if (!session.ExtractImageToFile(materialInfo.nodeId, desiredFileFormatName, imagePlanes, assetCacheFolderPath, out writtenFilePath))
{
return textureResult;
}
HEU_AssetDatabase.SaveAndRefreshDatabase();
// Convert full path back to relative in order to work with AssetDatabase
string assetRelativePath = HEU_AssetDatabase.GetAssetRelativePath(writtenFilePath);
// Re-import to refresh the project
HEU_AssetDatabase.ImportAsset(assetRelativePath, HEU_AssetDatabase.HEU_ImportAssetOptions.Default);
textureResult = HEU_AssetDatabase.LoadAssetAtPath(assetRelativePath, typeof(Texture2D)) as Texture2D;
//Debug.LogFormat("Loaded texture to file {0} with format {1}", writtenFilePath, textureResult != null ? textureResult.format.ToString() : "none");
return textureResult;
}