/// <summary>
/// Try to import into the given scene.
/// Return the nodes we created.
/// </summary>
Dictionary <GameObject, FbxNode> TryImport(Settings settings, FbxScene scene)
{
using (var importer = FbxImporter.Create(scene.GetFbxManager(), ""))
{
if (!importer.Initialize(settings.m_FileName))
{
return(null);
}
if (!importer.Import(scene))
{
return(null);
}
// Unity: Y-up, right is +X, forward is +Z (left-handed)
var axes = new FbxAxisSystem(
FbxAxisSystem.EUpVector.eYAxis,
FbxAxisSystem.EFrontVector.eParityOdd,
FbxAxisSystem.ECoordSystem.eLeftHanded);
// Convert as needed.
switch (settings.m_Conversion)
{
case Settings.Conversion.Legacy:
axes.ConvertScene(scene);
break;
case Settings.Conversion.Deep:
axes.DeepConvertScene(scene);
break;
case Settings.Conversion.None:
break;
}
// The root node is this node. We won't set ourselves up to match the FBX root;
// normally it's just a null.
var root = scene.GetRootNode();
var nodes = new Dictionary <GameObject, FbxNode>();
CreateChildren(this.transform, root, nodes);
return(nodes);
}
}
static void ImportScene(ImportContext context)
{
var settings = context.settings;
var scene = context.scene;
if (context.settings.component.ForceFrontXAxis)
{
//Через такой конструктор не получится создать такие же оси как EPreDefinedAxisSystem.eMax - Front Axis имеет обратное направление, а направление задать нельзя.
//new FbxAxisSystem( FbxAxisSystem.EUpVector.eZAxis, FbxAxisSystem.EFrontVector.eParityOdd, FbxAxisSystem.ECoordSystem.eRightHanded );
//FromFBX Docs:
//The enum values ParityEven and ParityOdd denote the first one and the second one of the remain two axes in addition to the up axis.
//For example if the up axis is X, the remain two axes will be Y And Z, so the ParityEven is Y, and the ParityOdd is Z ;
//We desire to convert the scene from Y-Up to Z-Up. Using the predefined axis system: Max (UpVector = +Z, FrontVector = -Y, CoordSystem = +X (RightHanded))
var maxAxisSystem = new FbxAxisSystem(FbxAxisSystem.EPreDefinedAxisSystem.eMax);
if (!scene.GetGlobalSettings().GetAxisSystem().eq(maxAxisSystem))
{
maxAxisSystem.ConvertScene(scene); //No conversion will take place if the scene current axis system is equal to the new one. So condition can be removed.
}
}
//convert units
if (!scene.GetGlobalSettings().GetSystemUnit().eq(FbxSystemUnit.m))
{
FbxSystemUnit.m.ConvertScene(scene);
}
//get materials data
var materialsData = GetMaterialsData(context);
//create Materials group
context.materialsGroup = context.settings.component.GetComponent("Materials");
if (context.materialsGroup == null /*&& materialsData.Count != 0*/ && settings.updateMaterials)
{
context.materialsGroup = context.settings.component.CreateComponent <Component>();
context.materialsGroup.Name = "Materials";
}
//create materials
foreach (var data in materialsData)
{
Component_Material material = null;
if (context.settings.updateMaterials)
{
material = CreateMaterial(context.materialsGroup, data);
}
else
{
if (context.materialsGroup != null)
{
material = context.materialsGroup.GetComponent(data.Name) as Component_Material;
}
}
if (material != null)
{
context.materialByIndex.Add(data.Index, material);
}
}
//-------------------------
var additionalTransform = new Matrix4(settings.component.Rotation.Value.ToMatrix3() * Matrix3.FromScale(settings.component.Scale), settings.component.Position);
var options = new ImportOptions
{
NormalsOptions = NormalsAndTangentsLoadOptions.FromFileIfPresentOrCalculate,
TangentsOptions = NormalsAndTangentsLoadOptions.FromFileIfPresentOrCalculate,
ImportPostProcessFlags = ImportPostProcessFlags.FixInfacingNormals
};
options.ImportPostProcessFlags |= ImportPostProcessFlags.SmoothNormals | ImportPostProcessFlags.SmoothTangents;
if (context.settings.component.FlipUVs)
{
options.ImportPostProcessFlags |= ImportPostProcessFlags.FlipUVs;
}
var sceneLoader = new SceneLoader();
var mode = settings.component.Mode.Value;
if (mode == Component_Import3D.ModeEnum.Auto)
{
mode = Component_Import3D.ModeEnum.OneMesh;
}
//create one mesh (OneMesh mode)
if (mode == Component_Import3D.ModeEnum.OneMesh && settings.updateMeshes)
{
sceneLoader.Load(scene, context.manager, options, additionalTransform);
Component_Skeleton skeletonComponent = CreateSkeletonComponent(context, sceneLoader.Skeleton, out int[] newIndexFromOldIndex, out SkeletonBone[] oldBoneFromNewIndex, additionalTransform);
static bool LoadFBX(ImportContext context, string virtualFileName, out List <MeshData> geometries)
{
geometries = null;
var settings = context.settings;
ImportFBX.LoadNativeLibrary();
FbxManager manager = null;
FbxIOSettings setting = null;
FbxImporter importer = null;
FbxScene scene = null;
try
{
manager = FbxManager.Create();
setting = FbxIOSettings.Create(manager, "IOSRoot");
manager.SetIOSettings(setting);
importer = FbxImporter.Create(manager, "");
var realFileName = VirtualPathUtility.GetRealPathByVirtual(virtualFileName);
//VirtualFileStream stream = null;
//ToDo : FromStream
bool status;
if (!string.IsNullOrEmpty(realFileName) && File.Exists(realFileName))
{
status = importer.Initialize(realFileName, -1, setting);
}
else
{
return(false);
//throw new NotImplementedException();
//ToDo : ....
//stream = VirtualFile.Open( settings.virtualFileName );
//FbxStream fbxStream = null;
//SWIGTYPE_p_void streamData = null;
//status = impoter.Initialize( fbxStream, streamData, -1, setting );
}
if (!status)
{
return(false);
}
scene = FbxScene.Create(manager, "scene1");
status = importer.Import(scene);
if (!status)
{
return(false);
}
//convert axis
if (context.settings.component.ForceFrontXAxis)
{
//Через такой конструктор не получится создать такие же оси как EPreDefinedAxisSystem.eMax - Front Axis имеет обратное направление, а направление задать нельзя.
//new FbxAxisSystem( FbxAxisSystem.EUpVector.eZAxis, FbxAxisSystem.EFrontVector.eParityOdd, FbxAxisSystem.ECoordSystem.eRightHanded );
//FromFBX Docs:
//The enum values ParityEven and ParityOdd denote the first one and the second one of the remain two axes in addition to the up axis.
//For example if the up axis is X, the remain two axes will be Y And Z, so the ParityEven is Y, and the ParityOdd is Z ;
//We desire to convert the scene from Y-Up to Z-Up. Using the predefined axis system: Max (UpVector = +Z, FrontVector = -Y, CoordSystem = +X (RightHanded))
var maxAxisSystem = new FbxAxisSystem(FbxAxisSystem.EPreDefinedAxisSystem.eMax);
if (!scene.GetGlobalSettings().GetAxisSystem().eq(maxAxisSystem))
{
maxAxisSystem.ConvertScene(scene); //No conversion will take place if the scene current axis system is equal to the new one. So condition can be removed.
}
}
//convert units
if (!scene.GetGlobalSettings().GetSystemUnit().eq(FbxSystemUnit.m))
{
FbxSystemUnit.m.ConvertScene(scene);
}
var additionalTransform = new Matrix4(settings.component.Rotation.Value.ToMatrix3() * Matrix3.FromScale(settings.component.Scale), settings.component.Position);
var options = new ImportOptions
{
NormalsOptions = NormalsAndTangentsLoadOptions.FromFileIfPresentOrCalculate,
TangentsOptions = NormalsAndTangentsLoadOptions.FromFileIfPresentOrCalculate,
ImportPostProcessFlags = ImportPostProcessFlags.FixInfacingNormals
};
options.ImportPostProcessFlags |= ImportPostProcessFlags.SmoothNormals | ImportPostProcessFlags.SmoothTangents;
if (context.settings.component.FlipUVs)
{
options.ImportPostProcessFlags |= ImportPostProcessFlags.FlipUVs;
}
//if( importContext.settings.component.MergeMeshGeometries )
// options.ImportPostProcessFlags |= ImportPostProcessFlags.MergeGeometriesByMaterials;
var sceneLoader = new SceneLoader();
sceneLoader.Load(scene, manager, options, additionalTransform);
geometries = sceneLoader.Geometries;
//foreach( var geometry in sceneLoader.Geometries )
// ImportGeometry( context, destinationMesh, geometry );
////check is it a billboard
//MeshGetIsBillboard( context, destinationMesh );
//stream?.Dispose();
}
finally
{
//Особенности удаления.
//Создается через функцию: impoter = FbxImporter.Create(manager, "");
//В таких случаях(создание не через конструктор, а возврат указателя из функции) SWIG задает флажок что объект не владеет ссылкой, поэтому Dispose ничего не делает.
//Хотя в SWIG можно задать в конфигурации: %newobject FbxImporter::Create; Тогда объект будет владеть ссылкой. Но все равно в С++ наследники FbxObject не имеют public destructor
//поэтому в Dispose вставлен: throw new MethodAccessException("C++ destructor does not have public access"). Поэтому удалять только через Destroy.
try { scene?.Destroy(); } catch { }
try { importer?.Destroy(); } catch { }
try { setting?.Destroy(); } catch { }
try { manager?.Destroy(); } catch { }
}
return(true);
}