protected override async Task ConstructScene(GLTFScene scene, bool showSceneObj, CancellationToken cancellationToken)
{
// calc total vert/poly count
/* int vertCount = 0, polyCount = 0;
* foreach (var mesh in _gltfRoot.Meshes)
* {
* foreach (var prim in mesh.Primitives)
* {
* var localVertCount = (int) prim.Attributes[SemanticProperties.POSITION].Value.Count;
* vertCount += localVertCount;
* polyCount += ((int?)prim.Indices?.Value.Count ?? localVertCount) / 3;
* }
* }
*
* if (vertCount > VERTEX_LIMIT)
* {
* throw new Exception($"Requested glTF {_gltfFileName} has too many vertices ({vertCount:N} > {VERTEX_LIMIT:N})");
* }
*
* if (polyCount > POLYGON_LIMIT)
* {
* throw new Exception($"Requested glTF {_gltfFileName} has too many polygons ({polyCount:N} > {POLYGON_LIMIT:N})");
* } */
await base.ConstructScene(scene, showSceneObj, cancellationToken);
foreach (var skin in CreatedObject.GetComponentsInChildren <SkinnedMeshRenderer>(true))
{
skin.quality = SkinQuality.Bone2;
}
}
private SceneId ExportScene(string name, Transform[] rootObjTransforms)
{
var scene = new GLTFScene();
if (ExportNames)
{
scene.Name = name;
}
scene.Nodes = new List <NodeId>(rootObjTransforms.Length);
foreach (var transform in rootObjTransforms)
{
scene.Nodes.Add(ExportNode(transform));
}
_root.Scenes.Add(scene);
return(new SceneId {
Id = _root.Scenes.Count - 1,
Root = _root
});
}
public void ExportGltf(BabylonScene babylonScene, string outputDirectory, string outputFileName, bool generateBinary)
{
RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
// Force output file extension to be gltf
outputFileName = Path.ChangeExtension(outputFileName, "gltf");
// Update path of output .gltf file to include subdirectory
var outputFile = Path.Combine(outputDirectory, outputFileName);
float progressionStep;
var progression = 0.0f;
ReportProgressChanged((int)progression);
// Initialization
initBabylonNodes(babylonScene);
babylonMaterialsToExport = new List <BabylonMaterial>();
var gltf = new GLTF(outputFile);
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0",
generator = $"babylon.js glTF exporter for maya 2018 v{exporterVersion}",
copyright = "2017 (c) BabylonJS"
// no minVersion
};
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Meshes
RaiseMessage("GLTFExporter | Exporting meshes");
progression = 10.0f;
ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
}
// Root nodes
RaiseMessage("GLTFExporter | Exporting nodes");
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
progressionStep = 40.0f / babylonRootNodes.Count;
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
});
// Materials
RaiseMessage("GLTFExporter | Exporting materials");
logRankTexture = 2;
foreach (var babylonMaterial in babylonMaterialsToExport)
{
ExportMaterial(babylonMaterial, gltf);
CheckCancelled();
}
;
RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
// Animations
RaiseMessage("GLTFExporter | Exporting Animations");
ExportAnimationGroups(gltf, babylonScene);
// Prepare buffers
gltf.BuffersList.ForEach(buffer =>
{
buffer.BufferViews.ForEach(bufferView =>
{
bufferView.Accessors.ForEach(accessor =>
{
// Chunk must be padded with trailing zeros (0x00) to satisfy alignment requirements
accessor.bytesList = new List <byte>(padChunk(accessor.bytesList.ToArray(), 4, 0x00));
// Update byte properties
accessor.byteOffset = bufferView.byteLength;
bufferView.byteLength += accessor.bytesList.Count;
// Merge bytes
bufferView.bytesList.AddRange(accessor.bytesList);
});
// Update byte properties
bufferView.byteOffset = buffer.byteLength;
buffer.byteLength += bufferView.bytesList.Count;
// Merge bytes
buffer.bytesList.AddRange(bufferView.bytesList);
});
});
// Cast lists to arrays
gltf.Prepare();
// Output
RaiseMessage("GLTFExporter | Saving to output file");
if (!generateBinary)
{
// Write .gltf file
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, gltfToJson(gltf));
// Write .bin file
string outputBinaryFile = Path.ChangeExtension(outputFile, "bin");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputBinaryFile, FileMode.Create)))
{
gltf.BuffersList.ForEach(buffer =>
{
buffer.bytesList.ForEach(b => writer.Write(b));
});
}
}
else
{
// Export glTF data to binary format .glb
// Header
UInt32 magic = 0x46546C67; // ASCII code for glTF
UInt32 version = 2;
UInt32 length = 12; // Header length
// --- JSON chunk ---
UInt32 chunkTypeJson = 0x4E4F534A; // ASCII code for JSON
// Remove buffers uri
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
gltfBuffer.uri = null;
}
// Switch images to binary
var imageBufferViews = SwitchImagesFromUriToBinary(gltf);
imageBufferViews.ForEach(imageBufferView =>
{
imageBufferView.Buffer.bytesList.AddRange(imageBufferView.bytesList);
});
gltf.Prepare();
// Serialize gltf data to JSON string then convert it to bytes
byte[] chunkDataJson = Encoding.ASCII.GetBytes(gltfToJson(gltf));
// JSON chunk must be padded with trailing Space chars (0x20) to satisfy alignment requirements
chunkDataJson = padChunk(chunkDataJson, 4, 0x20);
UInt32 chunkLengthJson = (UInt32)chunkDataJson.Length;
length += chunkLengthJson + 8; // 8 = JSON chunk header length
// bin chunk
UInt32 chunkTypeBin = 0x004E4942; // ASCII code for BIN
UInt32 chunkLengthBin = 0;
if (gltf.BuffersList.Count > 0)
{
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
chunkLengthBin += (uint)gltfBuffer.byteLength;
}
length += chunkLengthBin + 8; // 8 = bin chunk header length
}
// Write binary file
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputGlbFile, FileMode.Create)))
{
// Header
writer.Write(magic);
writer.Write(version);
writer.Write(length);
// JSON chunk
writer.Write(chunkLengthJson);
writer.Write(chunkTypeJson);
writer.Write(chunkDataJson);
// bin chunk
if (gltf.BuffersList.Count > 0)
{
writer.Write(chunkLengthBin);
writer.Write(chunkTypeBin);
gltf.BuffersList[0].bytesList.ForEach(b => writer.Write(b));
}
};
}
ReportProgressChanged(100);
}
public void ExportGltf(BabylonScene babylonScene, string outputDirectory, string outputFileName, bool generateBinary)
{
RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
// Force output file extension to be gltf
outputFileName = Path.ChangeExtension(outputFileName, "gltf");
// Update path of output .gltf file to include subdirectory
var outputFile = Path.Combine(outputDirectory, outputFileName);
float progressionStep;
var progression = 0.0f;
ReportProgressChanged((int)progression);
// Initialization
initBabylonNodes(babylonScene);
babylonMaterialsToExport = new List <BabylonMaterial>();
var gltf = new GLTF(outputFile);
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0"
// no minVersion
};
string maxVersion = null;
#if MAX2015
maxVersion = "2015";
#elif MAX2017
maxVersion = "2017";
#elif MAX2018
maxVersion = "2018";
#elif MAX2019
maxVersion = "2019";
#endif
gltf.asset.generator = $"babylon.js glTF exporter for 3ds max {maxVersion} v{exporterVersion}";
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Meshes
RaiseMessage("GLTFExporter | Exporting meshes");
progression = 10.0f;
ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
}
// Root nodes
RaiseMessage("GLTFExporter | Exporting nodes");
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
progressionStep = 40.0f / babylonRootNodes.Count;
alreadyExportedSkeletons = new Dictionary <BabylonSkeleton, BabylonSkeletonExportData>();
nodeToGltfNodeMap = new Dictionary <BabylonNode, GLTFNode>();
boneToGltfNodeMap = new Dictionary <BabylonBone, GLTFNode>();
NbNodesByName = new Dictionary <string, int>();
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
});
// Materials
RaiseMessage("GLTFExporter | Exporting materials");
foreach (var babylonMaterial in babylonMaterialsToExport)
{
ExportMaterial(babylonMaterial, gltf);
CheckCancelled();
}
;
RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
// Animations
RaiseMessage("GLTFExporter | Exporting Animations");
ExportAnimationGroups(gltf, babylonScene);
// Prepare buffers
gltf.BuffersList.ForEach(buffer =>
{
buffer.BufferViews.ForEach(bufferView =>
{
bufferView.Accessors.ForEach(accessor =>
{
// Chunk must be padded with trailing zeros (0x00) to satisfy alignment requirements
accessor.bytesList = new List <byte>(padChunk(accessor.bytesList.ToArray(), 4, 0x00));
// Update byte properties
accessor.byteOffset = bufferView.byteLength;
bufferView.byteLength += accessor.bytesList.Count;
// Merge bytes
bufferView.bytesList.AddRange(accessor.bytesList);
});
// Update byte properties
bufferView.byteOffset = buffer.byteLength;
buffer.byteLength += bufferView.bytesList.Count;
// Merge bytes
buffer.bytesList.AddRange(bufferView.bytesList);
});
});
// Cast lists to arrays
gltf.Prepare();
// Output
RaiseMessage("GLTFExporter | Saving to output file");
if (!generateBinary)
{
// Write .gltf file
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, gltfToJson(gltf));
// Write .bin file
string outputBinaryFile = Path.ChangeExtension(outputFile, "bin");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputBinaryFile, FileMode.Create)))
{
gltf.BuffersList.ForEach(buffer =>
{
buffer.bytesList.ForEach(b => writer.Write(b));
});
}
}
else
{
// Export glTF data to binary format .glb
// Header
UInt32 magic = 0x46546C67; // ASCII code for glTF
UInt32 version = 2;
UInt32 length = 12; // Header length
// --- JSON chunk ---
UInt32 chunkTypeJson = 0x4E4F534A; // ASCII code for JSON
// Remove buffers uri
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
gltfBuffer.uri = null;
}
// Switch images to binary
var imageBufferViews = SwitchImagesFromUriToBinary(gltf);
imageBufferViews.ForEach(imageBufferView =>
{
imageBufferView.Buffer.bytesList.AddRange(imageBufferView.bytesList);
});
gltf.Prepare();
// Serialize gltf data to JSON string then convert it to bytes
byte[] chunkDataJson = Encoding.ASCII.GetBytes(gltfToJson(gltf));
// JSON chunk must be padded with trailing Space chars (0x20) to satisfy alignment requirements
chunkDataJson = padChunk(chunkDataJson, 4, 0x20);
UInt32 chunkLengthJson = (UInt32)chunkDataJson.Length;
length += chunkLengthJson + 8; // 8 = JSON chunk header length
// bin chunk
UInt32 chunkTypeBin = 0x004E4942; // ASCII code for BIN
UInt32 chunkLengthBin = 0;
if (gltf.BuffersList.Count > 0)
{
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
chunkLengthBin += (uint)gltfBuffer.byteLength;
}
length += chunkLengthBin + 8; // 8 = bin chunk header length
}
// Write binary file
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputGlbFile, FileMode.Create)))
{
// Header
writer.Write(magic);
writer.Write(version);
writer.Write(length);
// JSON chunk
writer.Write(chunkLengthJson);
writer.Write(chunkTypeJson);
writer.Write(chunkDataJson);
// bin chunk
if (gltf.BuffersList.Count > 0)
{
writer.Write(chunkLengthBin);
writer.Write(chunkTypeBin);
gltf.BuffersList[0].bytesList.ForEach(b => writer.Write(b));
}
};
}
// Draco compression
if (exportParameters.dracoCompression)
{
RaiseMessage("GLTFExporter | Draco compression");
try
{
Process gltfPipeline = new Process();
// Hide the cmd window that show the gltf-pipeline result
//gltfPipeline.StartInfo.UseShellExecute = false;
//gltfPipeline.StartInfo.CreateNoWindow = true;
gltfPipeline.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
string arg;
if (generateBinary)
{
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
arg = $" -i {outputGlbFile} -o {outputGlbFile} -d";
}
else
{
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
arg = $" -i {outputGltfFile} -o {outputGltfFile} -d -s";
}
gltfPipeline.StartInfo.FileName = "gltf-pipeline.cmd";
gltfPipeline.StartInfo.Arguments = arg;
gltfPipeline.Start();
gltfPipeline.WaitForExit();
}
catch
{
RaiseError("gltf-pipeline module not found.", 1);
RaiseError("The exported file wasn't compressed.");
}
}
ReportProgressChanged(100);
}
public void ExportGltf(ExportParameters exportParameters, BabylonScene babylonScene, string outputDirectory, string outputFileName, bool generateBinary, ILoggingProvider logger)
{
this.exportParameters = exportParameters;
this.logger = logger;
logger.RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
#if DEBUG
var watch = new Stopwatch();
watch.Start();
#endif
this.babylonScene = babylonScene;
// Force output file extension to be gltf
outputFileName = Path.ChangeExtension(outputFileName, "gltf");
// Update path of output .gltf file to include subdirectory
var outputFile = Path.Combine(outputDirectory, outputFileName);
float progressionStep;
var progression = 0.0f;
logger.ReportProgressChanged((int)progression);
babylonMaterialsToExport = new List <BabylonMaterial>();
var gltf = new GLTF(outputFile);
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0"
// no minVersion
};
var softwarePackageName = babylonScene.producer != null ? babylonScene.producer.name : "";
var softwareVersion = babylonScene.producer != null ? babylonScene.producer.version : "";
var exporterVersion = babylonScene.producer != null ? babylonScene.producer.exporter_version : "";
gltf.asset.generator = $"babylon.js glTF exporter for {softwarePackageName} {softwareVersion} v{exporterVersion}";
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
ExportGLTFExtension(babylonScene, ref scene, gltf);
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Initialization
initBabylonNodes(babylonScene, gltf);
// Root nodes
logger.RaiseMessage("GLTFExporter | Exporting nodes");
progression = 30.0f;
logger.ReportProgressChanged((int)progression);
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
progressionStep = 30.0f / babylonRootNodes.Count;
alreadyExportedSkeletons = new Dictionary <BabylonSkeleton, BabylonSkeletonExportData>();
nodeToGltfNodeMap = new Dictionary <BabylonNode, GLTFNode>();
NbNodesByName = new Dictionary <string, int>();
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
logger.ReportProgressChanged((int)progression);
logger.CheckCancelled();
});
#if DEBUG
var nodesExportTime = watch.ElapsedMilliseconds / 1000.0;
logger.RaiseMessage(string.Format("GLTFNodes exported in {0:0.00}s", nodesExportTime), Color.Blue);
#endif
// Meshes
logger.RaiseMessage("GLTFExporter | Exporting meshes");
progression = 10.0f;
logger.ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
logger.ReportProgressChanged((int)progression);
logger.CheckCancelled();
}
#if DEBUG
var meshesExportTime = watch.ElapsedMilliseconds / 1000.0 - nodesExportTime;
logger.RaiseMessage(string.Format("GLTFMeshes exported in {0:0.00}s", meshesExportTime), Color.Blue);
#endif
//Mesh Skins, light and Cameras
logger.RaiseMessage("GLTFExporter | Exporting skins, lights and cameras");
progression = 50.0f;
logger.ReportProgressChanged((int)progression);
progressionStep = 50.0f / babylonRootNodes.Count;
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeTypeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
logger.ReportProgressChanged((int)progression);
logger.CheckCancelled();
});
#if DEBUG
var skinLightCameraExportTime = watch.ElapsedMilliseconds / 1000.0 - meshesExportTime;
logger.RaiseMessage(string.Format("GLTFSkin GLTFLights GLTFCameras exported in {0:0.00}s", skinLightCameraExportTime), Color.Blue);
#endif
// Materials
progression = 70.0f;
logger.ReportProgressChanged((int)progression);
logger.RaiseMessage("GLTFExporter | Exporting materials");
if (exportParameters.tryToReuseOpaqueAndBlendTexture)
{
// we MUST sort the material in order to let BabylonPBRMetallicRoughnessMaterial with Alpha first.
// the reason is the sequential write pattern
babylonMaterialsToExport = SortMaterialPriorToOptimizeTextureUsage(gltf, babylonMaterialsToExport).ToList();
}
foreach (var babylonMaterial in babylonMaterialsToExport)
{
ExportMaterial(babylonMaterial, gltf);
logger.CheckCancelled();
}
;
logger.RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
#if DEBUG
var materialsExportTime = watch.ElapsedMilliseconds / 1000.0 - nodesExportTime;
logger.RaiseMessage(string.Format("GLTFMaterials exported in {0:0.00}s", materialsExportTime), Color.Blue);
#endif
// Animations
progression = 90.0f;
logger.ReportProgressChanged((int)progression);
logger.RaiseMessage("GLTFExporter | Exporting Animations");
ExportAnimationGroups(gltf, babylonScene);
#if DEBUG
var animationGroupsExportTime = watch.ElapsedMilliseconds / 1000.0 - materialsExportTime;
logger.RaiseMessage(string.Format("GLTFAnimations exported in {0:0.00}s", animationGroupsExportTime), Color.Blue);
#endif
// Prepare buffers
gltf.BuffersList.ForEach(buffer =>
{
buffer.BufferViews.ForEach(bufferView =>
{
bufferView.Accessors.ForEach(accessor =>
{
// Chunk must be padded with trailing zeros (0x00) to satisfy alignment requirements
accessor.bytesList = new List <byte>(padChunk(accessor.bytesList.ToArray(), 4, 0x00));
// Update byte properties
accessor.byteOffset = bufferView.byteLength;
bufferView.byteLength += accessor.bytesList.Count;
// Merge bytes
bufferView.bytesList.AddRange(accessor.bytesList);
});
// Update byte properties
bufferView.byteOffset = buffer.byteLength;
buffer.byteLength += bufferView.bytesList.Count;
// Merge bytes
buffer.bytesList.AddRange(bufferView.bytesList);
});
});
// Cast lists to arrays
gltf.Prepare();
// Output
logger.RaiseMessage("GLTFExporter | Saving to output file");
if (!generateBinary)
{
// Write .gltf file
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, gltfToJson(gltf));
// Write .bin file
string outputBinaryFile = Path.ChangeExtension(outputFile, "bin");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputBinaryFile, FileMode.Create)))
{
gltf.BuffersList.ForEach(buffer =>
{
buffer.bytesList.ForEach(b => writer.Write(b));
});
}
}
else
{
// Export glTF data to binary format .glb
// Header
UInt32 magic = 0x46546C67; // ASCII code for glTF
UInt32 version = 2;
UInt32 length = 12; // Header length
// --- JSON chunk ---
UInt32 chunkTypeJson = 0x4E4F534A; // ASCII code for JSON
// Remove buffers uri
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
gltfBuffer.uri = null;
}
// Switch images to binary
gltf.Prepare();
// Serialize gltf data to JSON string then convert it to bytes
byte[] chunkDataJson = Encoding.UTF8.GetBytes(gltfToJson(gltf));
// JSON chunk must be padded with trailing Space chars (0x20) to satisfy alignment requirements
chunkDataJson = padChunk(chunkDataJson, 4, 0x20);
UInt32 chunkLengthJson = (UInt32)chunkDataJson.Length;
length += chunkLengthJson + 8; // 8 = JSON chunk header length
// bin chunk
UInt32 chunkTypeBin = 0x004E4942; // ASCII code for BIN
UInt32 chunkLengthBin = 0;
if (gltf.BuffersList.Count > 0)
{
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
chunkLengthBin += (uint)gltfBuffer.byteLength;
}
length += chunkLengthBin + 8; // 8 = bin chunk header length
}
// Write binary file
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputGlbFile, FileMode.Create)))
{
// Header
writer.Write(magic);
writer.Write(version);
writer.Write(length);
// JSON chunk
writer.Write(chunkLengthJson);
writer.Write(chunkTypeJson);
writer.Write(chunkDataJson);
// bin chunk
if (gltf.BuffersList.Count > 0)
{
writer.Write(chunkLengthBin);
writer.Write(chunkTypeBin);
gltf.BuffersList[0].bytesList.ForEach(b => writer.Write(b));
}
};
}
// Draco compression
if (exportParameters.dracoCompression)
{
logger.RaiseMessage("GLTFExporter | Draco compression");
GLTFPipelineUtilities.DoDracoCompression(logger, generateBinary, outputFile, exportParameters.dracoParams);
}
logger.ReportProgressChanged(100);
}
public void ExportGltf(BabylonScene babylonScene, string outputFile, bool generateBinary, bool exportGltfImagesAsBinary)
{
RaiseMessage("GLTFExporter | Export outputFile=" + outputFile + " generateBinary=" + generateBinary);
RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
float progressionStep;
var progression = 0.0f;
ReportProgressChanged((int)progression);
// Initialization
initBabylonNodes(babylonScene);
babylonMaterialsToExport = new List <BabylonMaterial>();
var gltf = new GLTF(outputFile);
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0",
generator = "Babylon2Gltf2017",
copyright = "2017 (c) BabylonJS"
// no minVersion
};
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Meshes
RaiseMessage("GLTFExporter | Exporting meshes");
progression = 10.0f;
ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
}
// Root nodes
RaiseMessage("GLTFExporter | Exporting nodes");
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
progressionStep = 40.0f / babylonRootNodes.Count;
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
});
// TODO - Choose between this method and the reverse of X axis
// Switch from left to right handed coordinate system
RaiseMessage("GLTFExporter | Exporting root node");
var tmpNodesList = new List <int>(scene.NodesList);
var rootNode = new BabylonMesh
{
name = "root",
rotation = new float[] { 0, (float)Math.PI, 0 },
scaling = new float[] { 1, 1, -1 },
idGroupInstance = -1
};
scene.NodesList.Clear();
GLTFNode gltfRootNode = ExportAbstractMesh(rootNode, gltf, null);
gltfRootNode.ChildrenList.AddRange(tmpNodesList);
// Materials
RaiseMessage("GLTFExporter | Exporting materials");
foreach (var babylonMaterial in babylonMaterialsToExport)
{
ExportMaterial(babylonMaterial, gltf);
CheckCancelled();
}
;
RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
if (exportGltfImagesAsBinary)
{
SwitchImagesFromUriToBinary(gltf);
}
// Cast lists to arrays
gltf.Prepare();
// Output
RaiseMessage("GLTFExporter | Saving to output file");
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, gltfToJson(gltf));
// Write data to binary file
string outputBinaryFile = Path.ChangeExtension(outputFile, "bin");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputBinaryFile, FileMode.Create)))
{
gltf.BuffersList.ForEach(buffer =>
{
buffer.bytesList = new List <byte>();
gltf.BufferViewsList.FindAll(bufferView => bufferView.buffer == buffer.index).ForEach(bufferView =>
{
bufferView.bytesList.ForEach(b => writer.Write(b));
buffer.bytesList.AddRange(bufferView.bytesList);
});
});
}
// Binary
if (generateBinary)
{
// Export glTF data to binary format .glb
RaiseMessage("GLTFExporter | Generating .glb file");
// Header
UInt32 magic = 0x46546C67; // ASCII code for glTF
UInt32 version = 2;
UInt32 length = 12; // Header length
// --- JSON chunk ---
UInt32 chunkTypeJson = 0x4E4F534A; // ASCII code for JSON
// Remove buffers uri
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
gltfBuffer.uri = null;
}
// Switch images to binary if not already done
// TODO - make it optional
if (!exportGltfImagesAsBinary)
{
var imageBufferViews = SwitchImagesFromUriToBinary(gltf);
imageBufferViews.ForEach(imageBufferView =>
{
imageBufferView.Buffer.bytesList.AddRange(imageBufferView.bytesList);
});
}
gltf.Prepare();
// Serialize gltf data to JSON string then convert it to bytes
byte[] chunkDataJson = Encoding.ASCII.GetBytes(gltfToJson(gltf));
// JSON chunk must be padded with trailing Space chars (0x20) to satisfy alignment requirements
var nbSpaceToAdd = chunkDataJson.Length % 4 == 0 ? 0 : (4 - chunkDataJson.Length % 4);
var chunkDataJsonList = new List <byte>(chunkDataJson);
for (int i = 0; i < nbSpaceToAdd; i++)
{
chunkDataJsonList.Add(0x20);
}
chunkDataJson = chunkDataJsonList.ToArray();
UInt32 chunkLengthJson = (UInt32)chunkDataJson.Length;
length += chunkLengthJson + 8; // 8 = JSON chunk header length
// bin chunk
UInt32 chunkTypeBin = 0x004E4942; // ASCII code for BIN
UInt32 chunkLengthBin = 0;
if (gltf.BuffersList.Count > 0)
{
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
chunkLengthBin += (uint)gltfBuffer.byteLength;
}
length += chunkLengthBin + 8; // 8 = bin chunk header length
}
// Write binary file
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputGlbFile, FileMode.Create)))
{
// Header
writer.Write(magic);
writer.Write(version);
writer.Write(length);
// JSON chunk
writer.Write(chunkLengthJson);
writer.Write(chunkTypeJson);
writer.Write(chunkDataJson);
// bin chunk
if (gltf.BuffersList.Count > 0)
{
writer.Write(chunkLengthBin);
writer.Write(chunkTypeBin);
gltf.BuffersList[0].bytesList.ForEach(b => writer.Write(b));
}
};
}
ReportProgressChanged(100);
}
public void ExportGltf(BabylonScene babylonScene, string outputFile, bool generateBinary)
{
RaiseMessage("GLTFExporter | Export outputFile=" + outputFile + " generateBinary=" + generateBinary);
RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
float progressionStep;
var progression = 0.0f;
ReportProgressChanged((int)progression);
// Initialization
initBabylonNodes(babylonScene);
babylonMaterialsToExport = new List <BabylonMaterial>();
var gltf = new GLTF(Path.GetDirectoryName(outputFile));
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0",
generator = "Babylon2Gltf2017",
copyright = "2017 (c) BabylonJS"
// no minVersion
};
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Meshes
RaiseMessage("GLTFExporter | Exporting meshes");
progression = 10.0f;
ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
}
// Root nodes
RaiseMessage("GLTFExporter | Exporting nodes");
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
progressionStep = 40.0f / babylonRootNodes.Count;
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
});
// TODO - Choose between this method and the reverse of X axis
// Switch from left to right handed coordinate system
RaiseMessage("GLTFExporter | Exporting root node");
var tmpNodesList = new List <int>(scene.NodesList);
var rootNode = new BabylonMesh
{
name = "root",
rotation = new float[] { 0, (float)Math.PI, 0 },
scaling = new float[] { 1, 1, -1 },
idGroupInstance = -1
};
scene.NodesList.Clear();
GLTFNode gltfRootNode = ExportAbstractMesh(rootNode, gltf, null);
gltfRootNode.ChildrenList.AddRange(tmpNodesList);
// Materials
RaiseMessage("GLTFExporter | Exporting materials");
foreach (var babylonMaterial in babylonMaterialsToExport)
{
ExportMaterial(babylonMaterial, gltf);
CheckCancelled();
}
;
RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
// Output
RaiseMessage("GLTFExporter | Saving to output file");
// Cast lists to arrays
gltf.Prepare();
var jsonSerializer = JsonSerializer.Create(new JsonSerializerSettings());
var sb = new StringBuilder();
var sw = new StringWriter(sb, CultureInfo.InvariantCulture);
// Do not use the optimized writer because it's not necessary to truncate values
// Use the bounded writer in case some values are infinity ()
using (var jsonWriter = new JsonTextWriterBounded(sw))
{
jsonWriter.Formatting = Formatting.None;
jsonSerializer.Serialize(jsonWriter, gltf);
}
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, sb.ToString());
// Binary
if (generateBinary)
{
// TODO - Export glTF data to binary format .glb
RaiseError("GLTFExporter | TODO - Generating binary files");
}
ReportProgressChanged(100);
}
public static GLTFRoot ExportModel(string path)
{
using var stream = File.OpenRead(path);
var pokemonModel = PokemonModel.GetRootAsPokemonModel(stream.ToByteBuffer());
var bufferRoot = Path.GetDirectoryName(path);
var bufferRootFile = Path.Combine(bufferRoot, $"{Path.GetFileNameWithoutExtension(path)}.mdlbin");
using var buffer = File.OpenWrite(bufferRootFile);
buffer.SetLength(0);
var gltfRoot = new GLTFRoot
{
Asset = new GLTFAsset
{
Generator = "GFLX",
Copyright = "2019 GameFreak - Pokemon Company",
Version = "2.0"
}
};
var gltfBuffer = gltfRoot.Buffers.Count;
var materials = DeconstructMaterials(pokemonModel, gltfRoot);
var scene = new GLTFScene();
for (var i = 0; i < pokemonModel.VisualGroupLength; ++i)
{
var group = pokemonModel.VisualGroup(i).GetValueOrDefault();
var mesh = pokemonModel.Meshes((int)group.MeshId).GetValueOrDefault();
var bone = pokemonModel.Bones((int)group.BoneId).GetValueOrDefault();
var attributes = DeconstructVbo(mesh, gltfRoot, buffer, gltfBuffer);
var node = new GLTFMesh
{
Name = bone.Name
};
for (var j = 0; j < mesh.IndiceBufferLength; ++j)
{
var primitive = mesh.IndiceBuffer(j).GetValueOrDefault();
node.Primitives.Add(new GLTFMeshPrimitive
{
Attributes = attributes,
Indices = gltfRoot.Accessors.Count,
Mode = GLTFDrawMode.Triangles,
Material = materials[primitive.MaterialId]
});
gltfRoot.Accessors.Add(new GLTFAccessor
{
BufferView = gltfRoot.BufferViews.Count,
ByteOffset = 0,
ComponentType = GLTFComponentType.UnsignedShort,
Count = (uint)primitive.IndicesLength,
Type = GLTFAccessorAttributeType.SCALAR
});
var targetBuffer = MemoryMarshal.Cast <ushort, byte>(primitive.GetIndicesBytes());
gltfRoot.BufferViews.Add(new GLTFBufferView
{
Buffer = gltfBuffer,
ByteOffset = (uint)buffer.Position,
ByteLength = (uint)targetBuffer.Length
});
buffer.Write(targetBuffer);
}
scene.Nodes.Add(gltfRoot.Nodes.Count);
gltfRoot.Nodes.Add(new GLTFNode
{
Mesh = gltfRoot.Meshes.Count,
Name = node.Name
});
gltfRoot.Meshes.Add(node);
}
gltfRoot.Scenes.Add(scene);
gltfRoot.Buffers.Add(new GLTFBuffer
{
Uri = Path.GetFileName(bufferRootFile),
ByteLength = (uint)buffer.Length
});
return(gltfRoot);
}
//public Dictionary<BabylonCamera, GLTFCamera> cameraToGltfCameraMap; //todo: fill this
public void ExportGltf(ExportParameters exportParameters, BabylonScene babylonScene, string outputDirectory, string outputFileName, bool generateBinary, ILoggingProvider logger)
{
this.exportParameters = exportParameters;
this.logger = logger;
logger?.Print("GLTFExporter | Exportation started", Color.Blue);
#if DEBUG
var watch = new Stopwatch();
watch.Start();
#endif
this.babylonScene = babylonScene;
// Force output file extension to be gltf
outputFileName = Path.ChangeExtension(outputFileName, "gltf");
// Update path of output .gltf file to include subdirectory
var outputFile = Path.Combine(outputDirectory, outputFileName);
float progressionStep;
var progression = 0.0f;
logger?.ReportProgressChanged((int)progression);
babylonMaterials = new List <BabylonMaterial>();
var gltf = new GLTF(outputFile);
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0"
// no minVersion
};
FlightSimExtension.FlightSimNormalMapConvention.AddNormalMapConvention(ref gltf, exportParameters);
var softwarePackageName = babylonScene.producer != null ? babylonScene.producer.name : "";
var softwareVersion = babylonScene.producer != null ? babylonScene.producer.version : "";
var exporterVersion = babylonScene.producer != null ? babylonScene.producer.exporter_version : "";
gltf.asset.generator = $"babylon.js glTF exporter for {softwarePackageName} {softwareVersion} v{exporterVersion}";
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
List <GLTFScene> subScenes = new List <GLTFScene>();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Initialization
initBabylonNodes(babylonScene, gltf);
// Root nodes
logger?.Print("GLTFExporter | Exporting nodes", Color.Black);
progression = 30.0f;
logger?.ReportProgressChanged((int)progression);
List <BabylonNode> babylonRootNodes;
if (exportParameters.exportAsSubmodel)
{
babylonRootNodes = babylonNodes.FindAll(node => node.subModelRoot == true);
}
else
{
babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
}
progressionStep = 30.0f / babylonRootNodes.Count;
alreadyExportedSkeletons = new Dictionary <BabylonSkeleton, BabylonSkeletonExportData>();
nodeToGltfNodeMap = new Dictionary <BabylonNode, GLTFNode>();
materialToGltfMaterialMap = new Dictionary <BabylonMaterial, GLTFMaterial>();
//cameraToGltfCameraMap = new Dictionary<BabylonCamera, GLTFCamera>();
NbNodesByName = new Dictionary <string, int>();
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
logger?.ReportProgressChanged((int)progression);
//logger?.CheckCancelled(this);
});
#if DEBUG
var nodesExportTime = watch.ElapsedMilliseconds / 1000.0;
logger?.Print(string.Format("GLTFNodes exported in {0:0.00}s", nodesExportTime), Color.Blue);
#endif
// Meshes
logger?.Print("GLTFExporter | Exporting meshes", Color.Black);
progression = 10.0f;
logger?.ReportProgressChanged((int)progression);
progressionStep = 40.0f / babylonScene.meshes.Length;
foreach (var babylonMesh in babylonScene.meshes)
{
ExportMesh(babylonMesh, gltf, babylonScene);
progression += progressionStep;
logger?.ReportProgressChanged((int)progression);
//logger?.CheckCancelled(this);
}
#if DEBUG
var meshesExportTime = watch.ElapsedMilliseconds / 1000.0 - nodesExportTime;
logger?.Print(string.Format("GLTFMeshes exported in {0:0.00}s", meshesExportTime), Color.Blue);
#endif
//Mesh Skins, light and Cameras
logger?.Print("GLTFExporter | Exporting skins, lights and cameras", Color.Black);
progression = 50.0f;
logger?.ReportProgressChanged((int)progression);
progressionStep = 50.0f / babylonRootNodes.Count;
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeTypeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
logger?.ReportProgressChanged((int)progression);
//logger?.CheckCancelled(this);
});
#if DEBUG
var skinLightCameraExportTime = watch.ElapsedMilliseconds / 1000.0 - meshesExportTime;
logger?.Print(string.Format("GLTFSkin GLTFLights GLTFCameras exported in {0:0.00}s", skinLightCameraExportTime), Color.Blue);
#endif
// Materials
progression = 70.0f;
logger?.ReportProgressChanged((int)progression);
logger?.Print("GLTFExporter | Exporting materials", Color.Black);
foreach (var babylonMaterial in babylonMaterials)
{
ExportMaterial(babylonMaterial, gltf);
//logger?.CheckCancelled(this);
}
;
logger?.RaiseMessage(string.Format("GLTFExporter | Nb materials exported: {0}", gltf.MaterialsList.Count), Color.Gray, 1);
#if DEBUG
var materialsExportTime = watch.ElapsedMilliseconds / 1000.0 - nodesExportTime;
logger?.Print(string.Format("GLTFMaterials exported in {0:0.00}s", materialsExportTime), Color.Blue);
#endif
if (exportParameters.animationExportType != AnimationExportType.NotExport)
{
// Animations
progression = 90.0f;
logger?.ReportProgressChanged((int)progression);
logger?.Print("GLTFExporter | Exporting animations", Color.Black);
ExportAnimationGroups(gltf, babylonScene);
#if DEBUG
var animationGroupsExportTime = watch.ElapsedMilliseconds / 1000.0 - materialsExportTime;
logger?.Print(string.Format("GLTFAnimations exported in {0:0.00}s", animationGroupsExportTime),
Color.Blue);
#endif
}
// Prepare buffers
gltf.BuffersList.ForEach(buffer =>
{
buffer.BufferViews.ForEach(bufferView =>
{
bufferView.Accessors.ForEach(accessor =>
{
// Chunk must be padded with trailing zeros (0x00) to satisfy alignment requirements
accessor.bytesList = new List <byte>(padChunk(accessor.bytesList.ToArray(), 4, 0x00));
// Update byte properties
accessor.byteOffset = bufferView.byteLength;
bufferView.byteLength += accessor.bytesList.Count;
// Merge bytes
bufferView.bytesList.AddRange(accessor.bytesList);
});
// Update byte properties
bufferView.byteOffset = buffer.byteLength;
buffer.byteLength += bufferView.bytesList.Count;
// Merge bytes
buffer.bytesList.AddRange(bufferView.bytesList);
});
});
//remove all namespaces of node:
// char0:x0_name_left -> x0_name_left
if (exportParameters.removeNamespaces)
{
foreach (GLTFNode gltfNode in gltf.NodesList)
{
int indexNamespaceChar = gltfNode.name.LastIndexOf(":");
if (indexNamespaceChar > 0)
{
gltfNode.name = gltfNode.name.Substring(indexNamespaceChar + 1);
}
}
}
//remove LOD prefix of node of node:
//x0_name_left -> name_left
if (exportParameters.removeLodPrefix)
{
foreach (GLTFNode gltfNode in gltf.NodesList)
{
string pattern = "(?i)x[0-9]_";
string result = Regex.Replace(gltfNode.name, pattern, "");
gltfNode.name = result;
}
}
//remove empty space at end
foreach (GLTFNode gltfNode in gltf.NodesList)
{
gltfNode.name = gltfNode.name.TrimEnd();
}
for (int i = 0; i < gltf.scenes.Count(); i++)
{
ExportGLTFExtension(babylonScene, ref gltf.scenes[i], gltf);
}
// Output
logger?.Print("GLTFExporter | Saving to output file", Color.Black);
if (!generateBinary)
{
// Cast lists to arrays
gltf.Prepare();
// Write .gltf file
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, gltfToJson(gltf));
// Write .bin file
string outputBinaryFile = Path.ChangeExtension(outputFile, "bin");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputBinaryFile, FileMode.Create)))
{
gltf.BuffersList.ForEach(buffer =>
{
buffer.bytesList.ForEach(b => writer.Write(b));
});
}
}
else
{
// Export glTF data to binary format .glb
// Header
UInt32 magic = 0x46546C67; // ASCII code for glTF
UInt32 version = 2;
UInt32 length = 12; // Header length
// --- JSON chunk ---
UInt32 chunkTypeJson = 0x4E4F534A; // ASCII code for JSON
// Remove buffers uri
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
gltfBuffer.uri = null;
}
// Switch images to binary
var imageBufferViews = SwitchImagesFromUriToBinary(gltf);
imageBufferViews.ForEach(imageBufferView =>
{
imageBufferView.Buffer.bytesList.AddRange(imageBufferView.bytesList);
});
gltf.Prepare();
// Serialize gltf data to JSON string then convert it to bytes
byte[] chunkDataJson = Encoding.ASCII.GetBytes(gltfToJson(gltf));
// JSON chunk must be padded with trailing Space chars (0x20) to satisfy alignment requirements
chunkDataJson = padChunk(chunkDataJson, 4, 0x20);
UInt32 chunkLengthJson = (UInt32)chunkDataJson.Length;
length += chunkLengthJson + 8; // 8 = JSON chunk header length
// bin chunk
UInt32 chunkTypeBin = 0x004E4942; // ASCII code for BIN
UInt32 chunkLengthBin = 0;
if (gltf.BuffersList.Count > 0)
{
foreach (GLTFBuffer gltfBuffer in gltf.BuffersList)
{
chunkLengthBin += (uint)gltfBuffer.byteLength;
}
length += chunkLengthBin + 8; // 8 = bin chunk header length
}
// Write binary file
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
using (BinaryWriter writer = new BinaryWriter(File.Open(outputGlbFile, FileMode.Create)))
{
// Header
writer.Write(magic);
writer.Write(version);
writer.Write(length);
// JSON chunk
writer.Write(chunkLengthJson);
writer.Write(chunkTypeJson);
writer.Write(chunkDataJson);
// bin chunk
if (gltf.BuffersList.Count > 0)
{
writer.Write(chunkLengthBin);
writer.Write(chunkTypeBin);
gltf.BuffersList[0].bytesList.ForEach(b => writer.Write(b));
}
};
}
// Draco compression
if (exportParameters.dracoCompression)
{
logger?.RaiseMessage("GLTFExporter | Draco compression");
try
{
Process gltfPipeline = new Process();
// Hide the cmd window that show the gltf-pipeline result
//gltfPipeline.StartInfo.UseShellExecute = false;
//gltfPipeline.StartInfo.CreateNoWindow = true;
gltfPipeline.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
string arg;
if (generateBinary)
{
string outputGlbFile = Path.ChangeExtension(outputFile, "glb");
arg = $" -i {outputGlbFile} -o {outputGlbFile} -d";
}
else
{
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
arg = $" -i {outputGltfFile} -o {outputGltfFile} -d -s";
}
gltfPipeline.StartInfo.FileName = "gltf-pipeline.cmd";
gltfPipeline.StartInfo.Arguments = arg;
gltfPipeline.Start();
gltfPipeline.WaitForExit();
}
catch
{
logger?.RaiseError("gltf-pipeline module not found.", 1);
logger?.RaiseError("The exported file wasn't compressed.");
}
}
logger?.ReportProgressChanged(100);
}
public void ExportGltf(BabylonScene babylonScene, string outputFile, bool generateBinary)
{
RaiseMessage("GLTFExporter | Export outputFile=" + outputFile + " generateBinary=" + generateBinary);
RaiseMessage("GLTFExporter | Exportation started", Color.Blue);
ReportProgressChanged(0);
var gltf = new GLTF(Path.GetDirectoryName(outputFile));
// Asset
gltf.asset = new GLTFAsset
{
version = "2.0",
generator = "Babylon2Gltf2017",
copyright = "2017 (c) BabylonJS"
// no minVersion
};
// Scene
gltf.scene = 0;
// Scenes
GLTFScene scene = new GLTFScene();
GLTFScene[] scenes = { scene };
gltf.scenes = scenes;
// Materials
RaiseMessage("GLTFExporter | Exporting materials");
ReportProgressChanged(10);
var babylonMaterials = babylonScene.MaterialsList;
babylonMaterials.ForEach((babylonMaterial) =>
{
ExportMaterial(babylonMaterial, gltf);
CheckCancelled();
});
// TODO - Handle multimaterials
RaiseMessage(string.Format("GLTFExporter | Total: {0}", gltf.MaterialsList.Count /*+ glTF.MultiMaterialsList.Count*/), Color.Gray, 1);
// Nodes
List <BabylonNode> babylonNodes = new List <BabylonNode>();
babylonNodes.AddRange(babylonScene.meshes);
babylonNodes.AddRange(babylonScene.lights);
babylonNodes.AddRange(babylonScene.cameras);
// Root nodes
RaiseMessage("GLTFExporter | Exporting root nodes");
List <BabylonNode> babylonRootNodes = babylonNodes.FindAll(node => node.parentId == null);
var progressionStep = 80.0f / babylonRootNodes.Count;
var progression = 20.0f;
ReportProgressChanged((int)progression);
babylonRootNodes.ForEach(babylonNode =>
{
exportNodeRec(babylonNode, gltf, babylonScene);
progression += progressionStep;
ReportProgressChanged((int)progression);
CheckCancelled();
});
// Output
RaiseMessage("GLTFExporter | Saving to output file");
// Cast lists to arrays
gltf.Prepare();
var jsonSerializer = JsonSerializer.Create(new JsonSerializerSettings()); // Standard serializer, not the optimized one
var sb = new StringBuilder();
var sw = new StringWriter(sb, CultureInfo.InvariantCulture);
using (var jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.None;
jsonSerializer.Serialize(jsonWriter, gltf);
}
string outputGltfFile = Path.ChangeExtension(outputFile, "gltf");
File.WriteAllText(outputGltfFile, sb.ToString());
// Binary
if (generateBinary)
{
// TODO - Export glTF data to binary format .glb
RaiseError("GLTFExporter | TODO - Generating binary files");
}
ReportProgressChanged(100);
}
