public static UdsTexture FromNode(AssetImportContext ctx, XmlNode node)
{
UdsTexture tex = new UdsTexture();
/*
* <Texture name="concrete_cast-in-place_formwork_wood_boards_bump_0" texturemode="0" texturefilter="3" textureaddressx="0" textureaddressy="0" rgbcurve="-1.000000"
* srgb="0" file="rac_basic_sample_project_local_copy-3DView-UE4_Assets/concrete.cast-in-place.formwork.wood.boards.bump.jpg">
* <Hash value="c99e25a6f94199ce085a6e78e56639f2"/>
* </Texture>
*/
tex.name = node.Attributes["name"].Value;
tex.filePath = node.Attributes["file"].Value;
if (Regex.Match(tex.filePath, @"\.ies$", RegexOptions.IgnoreCase).Success)
{
ctx.LogImportWarning(String.Format("Texture Reference \"{0}\" to IES light profile \"{1}\" cannot be resolved: IES light profile import is not implemented.", tex.name, tex.filePath));
return(null);
}
tex.fullyQualifiedPath = Path.Combine(Path.GetDirectoryName(ctx.assetPath), tex.filePath);
var texAssetObj = AssetDatabase.LoadAssetAtPath(tex.fullyQualifiedPath, typeof(Texture));
if (texAssetObj != null)
{
tex.assetRef = (Texture)texAssetObj;
var texImporterObj = AssetImporter.GetAtPath(tex.fullyQualifiedPath); // load import settings for possible later adjustment once we know what this will be used for
if (texImporterObj != null)
{
tex.importer = (TextureImporter)texImporterObj;
}
}
if (tex.assetRef == null || tex.importer == null)
{
ctx.LogImportError(String.Format("UdsTexture::FromNode: Asset does not exist at path \"{0}\"", tex.fullyQualifiedPath));
}
return(tex);
}
public override void OnImportAsset(AssetImportContext ctx)
{
XmlDocument doc = new XmlDocument();
{
String wholeDoc = File.ReadAllText(ctx.assetPath);
// Datasmith doesn't properly escape & in texture filename XML elements, so we need to do that before we can pass the document to XmlDocument or it will throw a parse error.
doc.LoadXml(System.Text.RegularExpressions.Regex.Replace(wholeDoc, @"&([^;]{8}?)", "&$1"));
}
XmlElement rootElement = doc.DocumentElement;
Debug.Assert(rootElement.Name == "DatasmithUnrealScene");
staticMeshElements = new Dictionary <string, UdsStaticMesh>();
materialElements = new Dictionary <string, UdsMaterial>();
textureElements = new Dictionary <string, UdsTexture>();
actorMetadata = new Dictionary <String, Dictionary <String, String> >();
// Populate actor metadata dictionaries
foreach (XmlNode metadataNode in rootElement.SelectNodes("child::MetaData"))
{
var m = Regex.Match(metadataNode.Attributes["reference"].Value, @"Actor\.(.*)$");
if (!m.Success)
{
continue;
}
String actorId = m.Groups[1].Value;
Dictionary <String, String> metadata = new Dictionary <string, string>();
foreach (XmlNode kvpNode in metadataNode.SelectNodes("child::KeyValueProperty"))
{
metadata.Add(kvpNode.Attributes["name"].Value, kvpNode.Attributes["val"].Value);
}
actorMetadata.Add(actorId, metadata);
}
// Import textures
foreach (XmlNode node in rootElement.SelectNodes("child::Texture"))
{
UdsTexture tex = UdsTexture.FromNode(ctx, node);
if (tex != null)
{
textureElements.Add(tex.name, tex);
}
}
// Import materials
foreach (XmlNode node in rootElement.SelectNodes("child::MasterMaterial"))
{
UdsMaterial m = UdsMaterial.FromNode(ctx, node, textureElements);
materialElements.Add(m.name, m);
}
// Import StaticMesh nodes and crossreference materials
foreach (XmlNode node in rootElement.SelectNodes("child::StaticMesh"))
{
UdsStaticMesh m = UdsStaticMesh.FromNode(ctx, node);
for (int materialIdx = 0; materialIdx < m.materialNames.Count; ++materialIdx)
{
UdsMaterial mat;
if (!materialElements.TryGetValue(m.materialNames[materialIdx], out mat))
{
ctx.LogImportError(String.Format("Can't resolve Material ref \"{0}\"", m.materialNames[materialIdx]));
}
m.materialRefs.Add(mat);
}
staticMeshElements.Add(m.name, m);
}
GameObject sceneRoot = new GameObject("datasmithRoot");
sceneRoot.transform.rotation = Quaternion.Euler(90.0f, 0.0f, 0.0f); // Convert Revit's Z-up orientation to Unity's Y-up orientation
ctx.AddObjectToAsset("datasmithRoot", sceneRoot);
ctx.SetMainObject(sceneRoot);
ImportActorChildren(ctx, sceneRoot, rootElement);
// cleanup (TODO not sure if this is required / what the lifecycle of this object looks like)
staticMeshElements = null;
materialElements = null;
textureElements = null;
actorMetadata = null;
}