public MaxGLTFMaterialExporter(ExportParameters exportParameters, GLTFExporter gltfExporter, ILoggingProvider logger)
{
// Instantiate custom material exporters
this.materialExporters = new Dictionary <ClassIDWrapper, IMaxMaterialExporter>();
foreach (Type type in Tools.GetAllLoadableTypes())
{
if (type.IsAbstract || type.IsInterface || !typeof(IMaxMaterialExporter).IsAssignableFrom(type))
{
continue;
}
IMaxMaterialExporter exporter = Activator.CreateInstance(type) as IMaxMaterialExporter;
if (exporter == null)
{
logger.RaiseWarning("Creating exporter instance failed: " + type.Name, 1);
}
materialExporters.Add(exporter.MaterialClassID, exporter);
}
this.exportParameters = exportParameters;
this.gltfExporter = gltfExporter;
}
public void Export(ExportParameters exportParameters)
{
this.exportParameters = exportParameters;
IINode exportNode = null;
if (exportParameters is MaxExportParameters)
{
MaxExportParameters maxExporterParameters = (exportParameters as MaxExportParameters);
exportNode = maxExporterParameters.exportNode;
if (maxExporterParameters.flattenScene)
{
FlattenHierarchy(exportNode);
}
if (maxExporterParameters.mergeInheritedContainers)
{
ExportClosedContainers();
}
}
this.scaleFactor = Tools.GetScaleFactorToMeters();
var scaleFactorFloat = 1.0f;
// Check input text is valid
float scaleFactor = exportParameters.scaleFactor;
long quality = exportParameters.txtQuality;
try
{
if (quality < 0 || quality > 100)
{
throw new Exception();
}
}
catch
{
RaiseError("Quality is not a valid number. It should be an integer between 0 and 100.");
RaiseError("This parameter sets the quality of jpg compression.");
return;
}
var gameConversionManger = Loader.Global.ConversionManager;
gameConversionManger.CoordSystem = Autodesk.Max.IGameConversionManager.CoordSystem.D3d;
var gameScene = Loader.Global.IGameInterface;
if (exportNode == null || exportNode.IsRootNode)
{
gameScene.InitialiseIGame(false);
}
else
{
gameScene.InitialiseIGame(exportNode, true);
}
gameScene.SetStaticFrame(0);
MaxSceneFileName = gameScene.SceneFileName;
IsCancelled = false;
string fileExportString = exportNode != null
? $"{exportNode.NodeName} | {exportParameters.outputPath}"
: exportParameters.outputPath;
RaiseMessage($"Exportation started: {fileExportString}", Color.Blue);
ReportProgressChanged(0);
string tempOutputDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
string outputDirectory = Path.GetDirectoryName(exportParameters.outputPath);
string folderOuputDirectory = exportParameters.textureFolder;
string outputFileName = Path.GetFileName(exportParameters.outputPath);
// Check directory exists
if (!Directory.Exists(outputDirectory))
{
RaiseError("Exportation stopped: Output folder does not exist");
ReportProgressChanged(100);
return;
}
Directory.CreateDirectory(tempOutputDirectory);
var outputBabylonDirectory = tempOutputDirectory;
// Force output file extension to be babylon
outputFileName = Path.ChangeExtension(outputFileName, "babylon");
var babylonScene = new BabylonScene(outputBabylonDirectory);
var rawScene = Loader.Core.RootNode;
var watch = new Stopwatch();
watch.Start();
string outputFormat = exportParameters.outputFormat;
isBabylonExported = outputFormat == "babylon" || outputFormat == "binary babylon";
isGltfExported = outputFormat == "gltf" || outputFormat == "glb";
// Get scene parameters
optimizeAnimations = !Loader.Core.RootNode.GetBoolProperty("babylonjs_donotoptimizeanimations");
exportNonAnimated = Loader.Core.RootNode.GetBoolProperty("babylonjs_animgroup_exportnonanimated");
// Save scene
if (exportParameters.autoSaveSceneFile)
{
RaiseMessage("Saving 3ds max file");
var forceSave = Loader.Core.FileSave;
callerForm?.BringToFront();
}
// Producer
babylonScene.producer = new BabylonProducer
{
name = "3dsmax",
#if MAX2019
version = "2019",
#elif MAX2018
version = "2018",
#elif MAX2017
version = "2017",
#else
version = Loader.Core.ProductVersion.ToString(),
#endif
exporter_version = exporterVersion,
file = outputFileName
};
// Global
babylonScene.autoClear = true;
babylonScene.clearColor = Loader.Core.GetBackGround(0, Tools.Forever).ToArray();
babylonScene.ambientColor = Loader.Core.GetAmbient(0, Tools.Forever).ToArray();
babylonScene.TimelineStartFrame = Loader.Core.AnimRange.Start / Loader.Global.TicksPerFrame;
babylonScene.TimelineEndFrame = Loader.Core.AnimRange.End / Loader.Global.TicksPerFrame;
babylonScene.TimelineFramesPerSecond = MaxSceneTicksPerSecond / Loader.Global.TicksPerFrame;
babylonScene.gravity = rawScene.GetVector3Property("babylonjs_gravity");
ExportQuaternionsInsteadOfEulers = rawScene.GetBoolProperty("babylonjs_exportquaternions", 1);
if (string.IsNullOrEmpty(exportParameters.pbrEnvironment) && Loader.Core.UseEnvironmentMap && Loader.Core.EnvironmentMap != null)
{
// Environment texture
var environmentMap = Loader.Core.EnvironmentMap;
// Copy image file to output if necessary
var babylonTexture = ExportEnvironmnentTexture(environmentMap, babylonScene);
if (babylonTexture != null)
{
babylonScene.environmentTexture = babylonTexture.name;
// Skybox
babylonScene.createDefaultSkybox = rawScene.GetBoolProperty("babylonjs_createDefaultSkybox");
babylonScene.skyboxBlurLevel = rawScene.GetFloatProperty("babylonjs_skyboxBlurLevel");
}
}
else if (!string.IsNullOrEmpty(exportParameters.pbrEnvironment))
{
babylonScene.createDefaultSkybox = rawScene.GetBoolProperty("babylonjs_createDefaultSkybox");
babylonScene.skyboxBlurLevel = rawScene.GetFloatProperty("babylonjs_skyboxBlurLevel");
}
// Instantiate custom material exporters
materialExporters = new Dictionary <ClassIDWrapper, IMaxMaterialExporter>();
foreach (Type type in Tools.GetAllLoadableTypes())
{
if (type.IsAbstract || type.IsInterface || !typeof(IMaxMaterialExporter).IsAssignableFrom(type))
{
continue;
}
IMaxMaterialExporter exporter = Activator.CreateInstance(type) as IMaxMaterialExporter;
if (exporter == null)
{
RaiseWarning("Creating exporter instance failed: " + type.Name, 1);
}
materialExporters.Add(exporter.MaterialClassID, exporter);
}
// Sounds
var soundName = rawScene.GetStringProperty("babylonjs_sound_filename", "");
if (!string.IsNullOrEmpty(soundName))
{
var filename = Path.GetFileName(soundName);
var globalSound = new BabylonSound
{
autoplay = rawScene.GetBoolProperty("babylonjs_sound_autoplay", 1),
loop = rawScene.GetBoolProperty("babylonjs_sound_loop", 1),
name = filename
};
babylonScene.SoundsList.Add(globalSound);
if (isBabylonExported)
{
try
{
File.Copy(soundName, Path.Combine(babylonScene.OutputPath, filename), true);
}
catch
{
}
}
}
// Root nodes
RaiseMessage("Exporting nodes");
HashSet <IIGameNode> maxRootNodes = getRootNodes(gameScene);
var progressionStep = 80.0f / maxRootNodes.Count;
var progression = 10.0f;
ReportProgressChanged((int)progression);
referencedMaterials.Clear();
Tools.guids.Clear();
// Reseting is optionnal. It makes each morph target manager export starts from id = 0.
BabylonMorphTargetManager.Reset();
foreach (var maxRootNode in maxRootNodes)
{
BabylonNode node = exportNodeRec(maxRootNode, babylonScene, gameScene);
// if we're exporting from a specific node, reset the pivot to {0,0,0}
if (node != null && exportNode != null && !exportNode.IsRootNode)
{
SetNodePosition(ref node, ref babylonScene, new float[] { 0, 0, 0 });
}
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
}
;
RaiseMessage(string.Format("Total meshes: {0}", babylonScene.MeshesList.Count), Color.Gray, 1);
// In 3DS Max the default camera look down (in the -z direction for the 3DS Max reference (+y for babylon))
// In Babylon the default camera look to the horizon (in the +z direction for the babylon reference)
// In glTF the default camera look to the horizon (in the +Z direction for glTF reference)
RaiseMessage("Update camera rotation and position", 1);
for (int index = 0; index < babylonScene.CamerasList.Count; index++)
{
BabylonCamera camera = babylonScene.CamerasList[index];
FixCamera(ref camera, ref babylonScene);
}
// Light for glTF
if (isGltfExported)
{
RaiseMessage("Update light rotation for glTF export", 1);
for (int index = 0; index < babylonScene.LightsList.Count; index++)
{
BabylonNode light = babylonScene.LightsList[index];
FixNodeRotation(ref light, ref babylonScene, -Math.PI / 2);
}
}
// Main camera
BabylonCamera babylonMainCamera = null;
ICameraObject maxMainCameraObject = null;
if (babylonMainCamera == null && babylonScene.CamerasList.Count > 0)
{
// Set first camera as main one
babylonMainCamera = babylonScene.CamerasList[0];
babylonScene.activeCameraID = babylonMainCamera.id;
RaiseMessage("Active camera set to " + babylonMainCamera.name, Color.Green, 1, true);
// Retreive camera node with same GUID
var maxCameraNodesAsTab = gameScene.GetIGameNodeByType(Autodesk.Max.IGameObject.ObjectTypes.Camera);
var maxCameraNodes = TabToList(maxCameraNodesAsTab);
var maxMainCameraNode = maxCameraNodes.Find(_camera => _camera.MaxNode.GetGuid().ToString() == babylonMainCamera.id);
maxMainCameraObject = (maxMainCameraNode.MaxNode.ObjectRef as ICameraObject);
}
if (babylonMainCamera == null)
{
RaiseWarning("No camera defined", 1);
}
else
{
RaiseMessage(string.Format("Total cameras: {0}", babylonScene.CamerasList.Count), Color.Gray, 1);
}
// Default light
bool addDefaultLight = rawScene.GetBoolProperty("babylonjs_addDefaultLight", 1);
if (!exportParameters.pbrNoLight && addDefaultLight && babylonScene.LightsList.Count == 0)
{
RaiseWarning("No light defined", 1);
RaiseWarning("A default hemispheric light was added for your convenience", 1);
ExportDefaultLight(babylonScene);
}
else
{
RaiseMessage(string.Format("Total lights: {0}", babylonScene.LightsList.Count), Color.Gray, 1);
}
if (scaleFactorFloat != 1.0f)
{
RaiseMessage("A root node is added for scaling", 1);
// Create root node for scaling
BabylonMesh rootNode = new BabylonMesh {
name = "root", id = Guid.NewGuid().ToString()
};
rootNode.isDummy = true;
float rootNodeScale = scaleFactorFloat;
rootNode.scaling = new float[3] {
rootNodeScale, rootNodeScale, rootNodeScale
};
if (ExportQuaternionsInsteadOfEulers)
{
rootNode.rotationQuaternion = new float[] { 0, 0, 0, 1 };
}
else
{
rootNode.rotation = new float[] { 0, 0, 0 };
}
// Update all top nodes
var babylonNodes = new List <BabylonNode>();
babylonNodes.AddRange(babylonScene.MeshesList);
babylonNodes.AddRange(babylonScene.CamerasList);
babylonNodes.AddRange(babylonScene.LightsList);
foreach (BabylonNode babylonNode in babylonNodes)
{
if (babylonNode.parentId == null)
{
babylonNode.parentId = rootNode.id;
}
}
// Store root node
babylonScene.MeshesList.Add(rootNode);
}
// Materials
if (exportParameters.exportMaterials)
{
RaiseMessage("Exporting materials");
var matsToExport = referencedMaterials.ToArray(); // Snapshot because multimaterials can export new materials
foreach (var mat in matsToExport)
{
ExportMaterial(mat, babylonScene);
CheckCancelled();
}
RaiseMessage(string.Format("Total: {0}", babylonScene.MaterialsList.Count + babylonScene.MultiMaterialsList.Count), Color.Gray, 1);
}
else
{
RaiseMessage("Skipping material export.");
}
// Fog
for (var index = 0; index < Loader.Core.NumAtmospheric; index++)
{
var atmospheric = Loader.Core.GetAtmospheric(index);
if (atmospheric.Active(0) && atmospheric.ClassName == "Fog")
{
var fog = atmospheric as IStdFog;
RaiseMessage("Exporting fog");
if (fog != null)
{
babylonScene.fogColor = fog.GetColor(0).ToArray();
babylonScene.fogMode = 3;
}
if (babylonMainCamera != null)
{
babylonScene.fogStart = maxMainCameraObject.GetEnvRange(0, 0, Tools.Forever);
babylonScene.fogEnd = maxMainCameraObject.GetEnvRange(0, 1, Tools.Forever);
}
}
}
// Skeletons
if (skins.Count > 0)
{
RaiseMessage("Exporting skeletons");
foreach (var skin in skins)
{
ExportSkin(skin, babylonScene);
}
}
// ----------------------------
// ----- Animation groups -----
// ----------------------------
RaiseMessage("Export animation groups");
// add animation groups to the scene
babylonScene.animationGroups = ExportAnimationGroups(babylonScene);
if (isBabylonExported)
{
// if we are exporting to .Babylon then remove then remove animations from nodes if there are animation groups.
if (babylonScene.animationGroups.Count > 0)
{
foreach (BabylonNode node in babylonScene.MeshesList)
{
node.animations = null;
}
foreach (BabylonNode node in babylonScene.LightsList)
{
node.animations = null;
}
foreach (BabylonNode node in babylonScene.CamerasList)
{
node.animations = null;
}
foreach (BabylonSkeleton skel in babylonScene.SkeletonsList)
{
foreach (BabylonBone bone in skel.bones)
{
bone.animation = null;
}
}
}
// setup a default skybox for the scene for .Babylon export.
var sourcePath = exportParameters.pbrEnvironment;
if (!string.IsNullOrEmpty(sourcePath))
{
var fileName = Path.GetFileName(sourcePath);
// Allow only dds file format
if (!fileName.EndsWith(".dds"))
{
RaiseWarning("Failed to export defauenvironment texture: only .dds format is supported.");
}
else
{
RaiseMessage($"texture id = Max_Babylon_Default_Environment");
babylonScene.environmentTexture = fileName;
if (exportParameters.writeTextures)
{
try
{
var destPath = Path.Combine(babylonScene.OutputPath, fileName);
if (File.Exists(sourcePath) && sourcePath != destPath)
{
File.Copy(sourcePath, destPath, true);
}
}
catch
{
// silently fails
RaiseMessage($"Fail to export the default env texture", 3);
}
}
}
}
}
// Output
babylonScene.Prepare(false, false);
if (isBabylonExported)
{
RaiseMessage("Saving to output file");
var outputFile = Path.Combine(outputBabylonDirectory, outputFileName);
var jsonSerializer = JsonSerializer.Create(new JsonSerializerSettings());
var sb = new StringBuilder();
var sw = new StringWriter(sb, CultureInfo.InvariantCulture);
using (var jsonWriter = new JsonTextWriterOptimized(sw))
{
jsonWriter.Formatting = Formatting.None;
jsonSerializer.Serialize(jsonWriter, babylonScene);
}
File.WriteAllText(outputFile, sb.ToString());
if (exportParameters.generateManifest)
{
File.WriteAllText(outputFile + ".manifest",
"{\r\n\"version\" : 1,\r\n\"enableSceneOffline\" : true,\r\n\"enableTexturesOffline\" : true\r\n}");
}
// Binary
if (outputFormat == "binary babylon")
{
RaiseMessage("Generating binary files");
BabylonFileConverter.BinaryConverter.Convert(outputFile, outputBabylonDirectory + "\\Binary",
message => RaiseMessage(message, 1),
error => RaiseError(error, 1));
}
}
ReportProgressChanged(100);
// Export glTF
if (isGltfExported)
{
bool generateBinary = outputFormat == "glb";
GLTFExporter gltfExporter = new GLTFExporter();
exportParameters.customGLTFMaterialExporter = new MaxGLTFMaterialExporter(exportParameters, gltfExporter, this);
gltfExporter.ExportGltf(this.exportParameters, babylonScene, tempOutputDirectory, outputFileName, generateBinary, this);
}
// Move files to output directory
var filePaths = Directory.GetFiles(tempOutputDirectory);
if (outputFormat == "binary babylon")
{
var tempBinaryOutputDirectory = Path.Combine(tempOutputDirectory, "Binary");
var binaryFilePaths = Directory.GetFiles(tempBinaryOutputDirectory);
foreach (var filePath in binaryFilePaths)
{
if (filePath.EndsWith(".binary.babylon"))
{
var file = Path.GetFileName(filePath);
var tempFilePath = Path.Combine(tempBinaryOutputDirectory, file);
var outputFile = Path.Combine(outputDirectory, file);
IUTF8Str maxNotification = GlobalInterface.Instance.UTF8Str.Create(outputFile);
Loader.Global.BroadcastNotification(SystemNotificationCode.PreExport, maxNotification);
moveFileToOutputDirectory(tempFilePath, outputFile, exportParameters);
Loader.Global.BroadcastNotification(SystemNotificationCode.PostExport, maxNotification);
}
else if (filePath.EndsWith(".babylonbinarymeshdata"))
{
var file = Path.GetFileName(filePath);
var tempFilePath = Path.Combine(tempBinaryOutputDirectory, file);
var outputFile = Path.Combine(outputDirectory, file);
IUTF8Str maxNotification = GlobalInterface.Instance.UTF8Str.Create(outputFile);
Loader.Global.BroadcastNotification(SystemNotificationCode.PreExport, maxNotification);
moveFileToOutputDirectory(tempFilePath, outputFile, exportParameters);
Loader.Global.BroadcastNotification(SystemNotificationCode.PostExport, maxNotification);
}
}
}
if (outputFormat == "glb")
{
foreach (var file_path in filePaths)
{
if (Path.GetExtension(file_path) == ".glb")
{
var file = Path.GetFileName(file_path);
var tempFilePath = Path.Combine(tempOutputDirectory, file);
var outputFile = Path.Combine(outputDirectory, file);
IUTF8Str maxNotification = GlobalInterface.Instance.UTF8Str.Create(outputFile);
Loader.Global.BroadcastNotification(SystemNotificationCode.PreExport, maxNotification);
moveFileToOutputDirectory(tempFilePath, outputFile, exportParameters);
Loader.Global.BroadcastNotification(SystemNotificationCode.PostExport, maxNotification);
break;
}
}
}
else
{
foreach (var filePath in filePaths)
{
var file = Path.GetFileName(filePath);
string ext = Path.GetExtension(file);
var tempFilePath = Path.Combine(tempOutputDirectory, file);
var outputPath = Path.Combine(outputDirectory, file);
if (!string.IsNullOrWhiteSpace(exportParameters.textureFolder) && TextureUtilities.ExtensionIsValidGLTFTexture(ext))
{
outputPath = Path.Combine(exportParameters.textureFolder, file);
}
IUTF8Str maxNotification = GlobalInterface.Instance.UTF8Str.Create(outputPath);
Loader.Global.BroadcastNotification(SystemNotificationCode.PreExport, maxNotification);
moveFileToOutputDirectory(tempFilePath, outputPath, exportParameters);
Loader.Global.BroadcastNotification(SystemNotificationCode.PostExport, maxNotification);
}
}
Directory.Delete(tempOutputDirectory, true);
watch.Stop();
RaiseMessage(string.Format("Exportation done in {0:0.00}s: {1}", watch.ElapsedMilliseconds / 1000.0, fileExportString), Color.Blue);
IUTF8Str max_notification = Autodesk.Max.GlobalInterface.Instance.UTF8Str.Create("BabylonExportComplete");
Loader.Global.BroadcastNotification(SystemNotificationCode.PostExport, max_notification);
}