/// <summary>
/// Export the mesh's vertex color using layer 0.
/// </summary>
///
public void ExportVertexColors(MeshInfo mesh, FbxMesh fbxMesh)
{
// Set the normals on Layer 0.
FbxLayer fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
fbxMesh.CreateLayer();
fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
}
using (var fbxLayerElement = FbxLayerElementVertexColor.Create(fbxMesh, "VertexColors"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
// TODO: normals for each triangle vertex instead of averaged per control point
//fbxNormalLayer.SetMappingMode (FbxLayerElement.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < mesh.VertexColors.Length; n++)
{
// Converting to Color from Color32, as Color32 stores the colors
// as ints between 0-255, while FbxColor and Color
// use doubles between 0-1
Color color = mesh.VertexColors [n];
fbxElementArray.Add(new FbxColor(color.r,
color.g,
color.b,
color.a));
}
fbxLayer.SetVertexColors(fbxLayerElement);
}
}
public FbxLayer GetLayer(int pIndex)
{
global::System.IntPtr cPtr = FbxWrapperNativePINVOKE.FbxLayerContainer_GetLayer__SWIG_0(swigCPtr, pIndex);
FbxLayer ret = (cPtr == global::System.IntPtr.Zero) ? null : new FbxLayer(cPtr, false);
return(ret);
}
public FbxLayer GetLayer(int pIndex, FbxLayerElement.EType pType, bool pIsUV)
{
global::System.IntPtr cPtr = FbxWrapperNativePINVOKE.FbxLayerContainer_GetLayer__SWIG_2(swigCPtr, pIndex, (int)pType, pIsUV);
FbxLayer ret = (cPtr == global::System.IntPtr.Zero) ? null : new FbxLayer(cPtr, false);
return(ret);
}
public FbxLayer GetLayer(int pIndex, FbxLayerElement.EType pType)
{
global::System.IntPtr cPtr = fbx_wrapperPINVOKE.FbxLayerContainer_GetLayer__SWIG_3(swigCPtr, pIndex, (int)pType);
FbxLayer ret = (cPtr == global::System.IntPtr.Zero) ? null : new FbxLayer(cPtr, false);
return(ret);
}
public void Clone(FbxLayer pSrcLayer)
{
FbxWrapperNativePINVOKE.FbxLayer_Clone(swigCPtr, FbxLayer.getCPtr(pSrcLayer));
if (FbxWrapperNativePINVOKE.SWIGPendingException.Pending)
{
throw FbxWrapperNativePINVOKE.SWIGPendingException.Retrieve();
}
}
public void Clone(FbxLayer pSrcLayer)
{
fbx_wrapperPINVOKE.FbxLayer_Clone(swigCPtr, FbxLayer.getCPtr(pSrcLayer));
if (fbx_wrapperPINVOKE.SWIGPendingException.Pending)
{
throw fbx_wrapperPINVOKE.SWIGPendingException.Retrieve();
}
}
public bool Equals(FbxLayer other)
{
if (object.ReferenceEquals(other, null))
{
return(false);
}
return(this.swigCPtr.Handle.Equals(other.swigCPtr.Handle));
}
/// <summary>
/// return base layer for mesh
/// </summary>
///
private FbxLayer GetBaseLayer(FbxMesh fbxMesh)
{
FbxLayer fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
fbxMesh.CreateLayer();
fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
}
return(fbxLayer);
}
public FbxLayer GetLayer(int pIndex)
{
global::System.IntPtr cPtr = NativeMethods.FbxLayerContainer_GetLayer(swigCPtr, pIndex);
FbxLayer ret = (cPtr == global::System.IntPtr.Zero) ? null : new FbxLayer(cPtr, false);
if (NativeMethods.SWIGPendingException.Pending)
{
throw NativeMethods.SWIGPendingException.Retrieve();
}
return(ret);
}
/// <summary>
/// Export the mesh's UVs using layer 0.
/// </summary>
public void ExportUVs(MeshInfo mesh, FbxMesh fbxMesh)
{
// Set the normals on Layer 0.
FbxLayer fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
fbxMesh.CreateLayer();
fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
}
using (var fbxLayerElement = FbxLayerElementUV.Create(fbxMesh, "UVSet"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eIndexToDirect);
// set texture coordinates per vertex
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < mesh.UV.Length; n++)
{
fbxElementArray.Add(new FbxVector2(mesh.UV [n] [0],
mesh.UV [n] [1]));
}
// For each face index, point to a texture uv
var unityTriangles = mesh.Triangles;
FbxLayerElementArray fbxIndexArray = fbxLayerElement.GetIndexArray();
fbxIndexArray.SetCount(unityTriangles.Length);
for (int i = 0, n = unityTriangles.Length; i < n; ++i)
{
fbxIndexArray.SetAt(i, unityTriangles[i]);
}
fbxLayer.SetUVs(fbxLayerElement, FbxLayerElement.EType.eTextureDiffuse);
}
}
/// <summary>
/// Process UV data and configure the Mesh's UV attributes
/// </summary>
private void ProcessUVs(FbxMesh fbxMesh, Mesh unityMesh, int maxUVs = 4)
{
// Import UV sets (maximum defined by maxUVs)
int uvsetIndex = 0;
// First just try importing diffuse UVs from separate layers
// (Maya exports that way)
FbxLayerElementUV fbxFirstUVSet = null;
FbxLayer fbxFirstUVLayer = null;
// NOTE: assuming triangles
int polygonIndexCount = fbxMesh.GetPolygonVertexCount();
int vertexCount = fbxMesh.GetControlPointsCount();
int [] polygonVertexIndices = new int [polygonIndexCount];
int j = 0;
for (int polyIndex = 0; polyIndex < fbxMesh.GetPolygonCount(); ++polyIndex)
{
for (int positionInPolygon = 0; positionInPolygon < fbxMesh.GetPolygonSize(polyIndex); ++positionInPolygon)
{
polygonVertexIndices [j++] = fbxMesh.GetPolygonVertex(polyIndex, positionInPolygon);
}
}
for (int i = 0; i < fbxMesh.GetLayerCount(); i++)
{
FbxLayer fbxLayer = fbxMesh.GetLayer(i);
if (fbxLayer == null)
{
continue;
}
FbxLayerElementUV fbxUVSet = fbxLayer.GetUVs();
if (fbxUVSet == null)
{
continue;
}
if (fbxFirstUVSet != null)
{
fbxFirstUVSet = fbxUVSet;
fbxFirstUVLayer = fbxLayer;
}
switch (uvsetIndex)
{
case 0:
unityMesh.uv = ProcessUVSet(fbxUVSet, polygonVertexIndices, vertexCount);
break;
case 1:
unityMesh.uv2 = ProcessUVSet(fbxUVSet, polygonVertexIndices, vertexCount);
break;
case 2:
unityMesh.uv3 = ProcessUVSet(fbxUVSet, polygonVertexIndices, vertexCount);
break;
case 3:
unityMesh.uv4 = ProcessUVSet(fbxUVSet, polygonVertexIndices, vertexCount);
break;
}
uvsetIndex++;
if (uvsetIndex == maxUVs)
{
break;
}
}
// If we have received one UV set, check whether the same layer contains an emissive UV set
// that is different from diffuse UV set.
// 3dsmax FBX exporters doesn't export UV sets as different layers, instead for lightmapping usually
// a material is set up to have lightmap (2nd UV set) as self-illumination slot, and main texture
// (1st UV set) as diffuse slot.
if (uvsetIndex == 1 && fbxFirstUVSet != null)
{
FbxLayerElementUV fbxSecondaryUVSet = null;
// TODO: check if we've already passed eTextureEmissive layer
for (int i = (int)FbxLayerElement.EType.eTextureEmissive; i < (int)FbxLayerElement.EType.eTypeCount; i++)
{
fbxSecondaryUVSet = fbxFirstUVLayer.GetUVs((FbxLayerElement.EType)i);
if (fbxSecondaryUVSet != null)
{
break;
}
if (fbxSecondaryUVSet != null)
{
unityMesh.uv2 = ProcessUVSet(fbxSecondaryUVSet,
polygonVertexIndices,
vertexCount);
uvsetIndex++;
}
}
}
}
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(FbxLayer obj)
{
return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr);
}
protected override FbxMesh GenerateFbx()
{
string meshName = (Souls.meshRoot != null ? Souls.meshRoot.Name : "") + "_Mesh";
FbxMesh mesh = FbxMesh.Create(Scene, meshName);
mesh.InitControlPoints(Souls.mesh.Vertices.Count);
int layerIndex = mesh.CreateLayer();
FbxLayer layer = mesh.GetLayer(layerIndex);
FbxLayerContainer layerContainer = FbxLayerContainer.Create(Scene, meshName + "_LayerContainer");
FbxLayerElementUV uv = FbxLayerElementUV.Create(layerContainer, "Diffuse");
layer.SetUVs(uv);
FbxLayerElementNormal normal = FbxLayerElementNormal.Create(layerContainer, "Normal");
layer.SetNormals(normal);
normal.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
normal.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
FbxLayerElementBinormal binormal = FbxLayerElementBinormal.Create(layerContainer, "Binormal");
layer.SetBinormals(binormal);
FbxLayerElementTangent tangent = FbxLayerElementTangent.Create(layerContainer, "Tangent");
layer.SetTangents(tangent);
tangent.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
tangent.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
for (int vertexIndex = 0; vertexIndex < Souls.mesh.Vertices.Count; ++vertexIndex)
{
FLVER.Vertex vertex = Souls.mesh.Vertices[vertexIndex];
Vector3 position = vertex.Position;
// this fixes vertex positions since otherwise the model is turned inside out
// and it appears like it holds weapons in the left hand
position.Z = -position.Z;
normal.GetDirectArray().Add(vertex.Normal.ToFbxVector4());
tangent.GetDirectArray().Add(new FbxVector4(vertex.Tangents[0].X, vertex.Tangents[0].Y, vertex.Tangents[0].Z));
Vector2 uvValue = new Vector2(0);
if (vertex.UVs.Count > 0)
{
uvValue.X = vertex.UVs[0].X;
uvValue.Y = vertex.UVs[0].Y;
}
uv.GetDirectArray().Add(uvValue.ToFbxVector2());
mesh.SetControlPointAt(position.ToFbxVector4(), vertexIndex);
}
for (int faceSetIndex = 0; faceSetIndex < Souls.mesh.FaceSets.Count; ++faceSetIndex)
{
FLVER2.FaceSet faceSet = Souls.mesh.FaceSets[faceSetIndex];
if (faceSet.Flags != FLVER2.FaceSet.FSFlags.None)
{
continue;
}
for (int faceStartIndex = 0; faceStartIndex < faceSet.Indices.Count; faceStartIndex += 3)
{
mesh.AddCompletePolygon(
faceSet.Indices[faceStartIndex],
faceSet.Indices[faceStartIndex + 1],
faceSet.Indices[faceStartIndex + 2]
);
//mesh.AddCompletePolygon(
// faceSet.Indices[faceStartIndex + 2],
// faceSet.Indices[faceStartIndex + 1],
// faceSet.Indices[faceStartIndex]
//);
}
}
mesh.BuildMeshEdgeArray();
FbxGeometryConverter converter = new FbxGeometryConverter(Scene.GetFbxManager());
converter.ComputeEdgeSmoothingFromNormals(mesh);
converter.ComputePolygonSmoothingFromEdgeSmoothing(mesh);
return(mesh);
}
protected override void CheckScene(FbxScene scene)
{
base.CheckScene(scene);
FbxScene origScene = CreateScene(FbxManager);
Assert.IsNotNull(origScene);
// Retrieve the mesh from each scene
FbxMesh origMesh = origScene.GetRootNode().GetChild(0).GetMesh();
FbxMesh importMesh = scene.GetRootNode().GetChild(0).GetMesh();
// get the layers
FbxLayer origLayer = origMesh.GetLayer(0 /* default layer */);
FbxLayer importLayer = importMesh.GetLayer(0 /* default layer */);
// Check UVs
var origUVElement = origLayer.GetUVs();
var importUVElement = importLayer.GetUVs();
Assert.AreEqual(origUVElement.GetMappingMode(), importUVElement.GetMappingMode());
Assert.AreEqual(origUVElement.GetReferenceMode(), importUVElement.GetReferenceMode());
var origUVElementArray = origUVElement.GetDirectArray();
var importUVElementArray = importUVElement.GetDirectArray();
Assert.AreEqual(origUVElementArray.GetCount(), importUVElementArray.GetCount());
for (int i = 0; i < origUVElementArray.GetCount(); i++)
{
Assert.AreEqual(origUVElementArray.GetAt(i), importUVElementArray.GetAt(i));
}
var origUVElementIndex = origUVElement.GetIndexArray();
var importUVElementIndex = origUVElement.GetIndexArray();
Assert.AreEqual(origUVElementIndex.GetCount(), importUVElementIndex.GetCount());
for (int i = 0; i < origUVElementIndex.GetCount(); i++)
{
Assert.AreEqual(origUVElementIndex.GetAt(i), importUVElementIndex.GetAt(i));
}
// Check material and texture
var origNode = origScene.GetRootNode().GetChild(0);
int origMatIndex = origNode.GetMaterialIndex(m_materialName);
Assert.GreaterOrEqual(origMatIndex, 0);
var origMaterial = origNode.GetMaterial(origMatIndex);
Assert.IsNotNull(origMaterial);
var importNode = scene.GetRootNode().GetChild(0);
int importMatIndex = importNode.GetMaterialIndex(m_materialName);
Assert.GreaterOrEqual(importMatIndex, 0);
var importMaterial = importNode.GetMaterial(importMatIndex);
Assert.IsNotNull(importMaterial);
// TODO: Add ability to Downcast the material to an FbxSurfacePhong.
Property[] materialProperties =
{
new Property(FbxSurfaceMaterial.sDiffuse, PropertyType.Color),
new Property(FbxSurfaceMaterial.sEmissive, PropertyType.Color),
new Property(FbxSurfaceMaterial.sAmbient, PropertyType.Double3),
new Property(FbxSurfaceMaterial.sSpecular, PropertyType.Double3),
new Property(FbxSurfaceMaterial.sBumpFactor, PropertyType.Double)
};
FbxProperty origMaterialDiffuseProperty = null;
FbxProperty importMaterialDiffuseProperty = null;
foreach (var prop in materialProperties)
{
FbxProperty origProp = origMaterial.FindProperty(prop.name);
Assert.IsNotNull(origProp);
Assert.IsTrue(origProp.IsValid());
FbxProperty importProp = importMaterial.FindProperty(prop.name);
Assert.IsNotNull(importProp);
Assert.IsTrue(importProp.IsValid());
switch (prop.type)
{
case PropertyType.Color:
Assert.AreEqual(origProp.GetFbxColor(), importProp.GetFbxColor());
break;
case PropertyType.Double3:
Assert.AreEqual(origProp.GetFbxDouble3(), importProp.GetFbxDouble3());
break;
case PropertyType.Double:
Assert.AreEqual(origProp.GetDouble(), importProp.GetDouble());
break;
default:
break;
}
if (prop.name.Equals(FbxSurfaceMaterial.sDiffuse))
{
origMaterialDiffuseProperty = origProp;
importMaterialDiffuseProperty = importProp;
}
}
Assert.IsNotNull(origMaterialDiffuseProperty);
Assert.IsNotNull(importMaterialDiffuseProperty);
var origTexture = origMaterialDiffuseProperty.FindSrcObject(FbxSurfaceMaterial.sDiffuse + "_Texture");
Assert.IsNotNull(origTexture);
var importTexture = importMaterialDiffuseProperty.FindSrcObject(FbxSurfaceMaterial.sDiffuse + "_Texture");
Assert.IsNotNull(importTexture);
// TODO: Trying to Downcast the texture to an FbxFileTexture returns a null value,
// need to figure out how to fix this so we can access the texture properties.
/*Assert.AreEqual (origTexture.GetFileName (), importTexture.GetFileName ());
* Assert.AreEqual (origTexture.GetTextureUse (), importTexture.GetTextureUse ());
* Assert.AreEqual (origTexture.GetMappingType (), importTexture.GetMappingType ());*/
}
protected override FbxScene CreateScene(FbxManager manager)
{
FbxScene scene = base.CreateScene(manager);
// Set the UVs
FbxMesh cubeMesh = scene.GetRootNode().GetChild(0).GetMesh();
FbxLayer fbxLayer = cubeMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
cubeMesh.CreateLayer();
fbxLayer = cubeMesh.GetLayer(0 /* default layer */);
}
using (var fbxLayerElement = FbxLayerElementUV.Create(cubeMesh, "UVSet"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eIndexToDirect);
// set texture coordinates per vertex
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < 8; n++)
{
fbxElementArray.Add(new FbxVector2(n % 2, 1)); // TODO: switch to correct values
}
// For each face index, point to a texture uv
FbxLayerElementArray fbxIndexArray = fbxLayerElement.GetIndexArray();
fbxIndexArray.SetCount(24);
for (int vertIndex = 0; vertIndex < 24; vertIndex++)
{
fbxIndexArray.SetAt(vertIndex, vertIndex % 8); // TODO: switch to correct values
}
fbxLayer.SetUVs(fbxLayerElement, FbxLayerElement.EType.eTextureDiffuse);
}
// Create the material
var fbxMaterial = FbxSurfacePhong.Create(scene, m_materialName);
fbxMaterial.Diffuse.Set(new FbxColor(1, 1, 1));
fbxMaterial.Emissive.Set(new FbxColor(0.5, 0.1, 0.2));
fbxMaterial.Ambient.Set(new FbxDouble3(0.3, 0.4, 0));
fbxMaterial.BumpFactor.Set(0.6);
fbxMaterial.Specular.Set(new FbxDouble3(0.8, 0.7, 0.9));
// Create and add the texture
var fbxMaterialProperty = fbxMaterial.FindProperty(FbxSurfaceMaterial.sDiffuse);
Assert.IsNotNull(fbxMaterialProperty);
Assert.IsTrue(fbxMaterialProperty.IsValid());
var fbxTexture = FbxFileTexture.Create(fbxMaterial, FbxSurfaceMaterial.sDiffuse + "_Texture");
fbxTexture.SetFileName("/path/to/some/texture.jpg");
fbxTexture.SetTextureUse(FbxTexture.ETextureUse.eStandard);
fbxTexture.SetMappingType(FbxTexture.EMappingType.eUV);
fbxTexture.ConnectDstProperty(fbxMaterialProperty);
scene.GetRootNode().GetChild(0).AddMaterial(fbxMaterial);
return(scene);
}
protected override void CheckScene(FbxScene scene)
{
base.CheckScene(scene);
FbxScene origScene = CreateScene(FbxManager);
Assert.IsNotNull(origScene);
// Retrieve the mesh from each scene
FbxMesh origMesh = origScene.GetRootNode().GetChild(0).GetMesh();
FbxMesh importMesh = scene.GetRootNode().GetChild(0).GetMesh();
// get the layers
FbxLayer origLayer = origMesh.GetLayer(0 /* default layer */);
FbxLayer importLayer = importMesh.GetLayer(0 /* default layer */);
// Check normals
CheckFbxElementVector4(origLayer.GetNormals(), importLayer.GetNormals());
// Check binormals
CheckFbxElementVector4(origLayer.GetBinormals(), importLayer.GetBinormals());
// Check tangents
CheckFbxElementVector4(origLayer.GetTangents(), importLayer.GetTangents());
// Check vertex colors
var origVertexColorElement = origLayer.GetVertexColors();
var importVertexColorElement = importLayer.GetVertexColors();
Assert.AreEqual(origVertexColorElement.GetMappingMode(), importVertexColorElement.GetMappingMode());
Assert.AreEqual(origVertexColorElement.GetReferenceMode(), importVertexColorElement.GetReferenceMode());
var origVertexColorElementArray = origVertexColorElement.GetDirectArray();
var importVertexColorElementArray = importVertexColorElement.GetDirectArray();
Assert.AreEqual(origVertexColorElementArray.GetCount(), importVertexColorElementArray.GetCount());
for (int i = 0; i < origVertexColorElementArray.GetCount(); i++)
{
Assert.AreEqual(origVertexColorElementArray.GetAt(i), importVertexColorElementArray.GetAt(i));
}
// Check UVs
var origUVElement = origLayer.GetUVs();
var importUVElement = importLayer.GetUVs();
Assert.AreEqual(origUVElement.GetMappingMode(), importUVElement.GetMappingMode());
Assert.AreEqual(origUVElement.GetReferenceMode(), importUVElement.GetReferenceMode());
var origUVElementArray = origUVElement.GetDirectArray();
var importUVElementArray = importUVElement.GetDirectArray();
Assert.AreEqual(origUVElementArray.GetCount(), importUVElementArray.GetCount());
for (int i = 0; i < origUVElementArray.GetCount(); i++)
{
Assert.AreEqual(origUVElementArray.GetAt(i), importUVElementArray.GetAt(i));
}
var origUVElementIndex = origUVElement.GetIndexArray();
var importUVElementIndex = origUVElement.GetIndexArray();
Assert.AreEqual(origUVElementIndex.GetCount(), importUVElementIndex.GetCount());
for (int i = 0; i < origUVElementIndex.GetCount(); i++)
{
Assert.AreEqual(origUVElementIndex.GetAt(i), importUVElementIndex.GetAt(i));
}
}
protected override FbxScene CreateScene(FbxManager manager)
{
FbxScene scene = base.CreateScene(manager);
// Add normals, binormals, UVs, tangents and vertex colors to the cube
FbxMesh cubeMesh = scene.GetRootNode().GetChild(0).GetMesh();
// Add normals
/// Set the Normals on Layer 0.
FbxLayer fbxLayer = cubeMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
cubeMesh.CreateLayer();
fbxLayer = cubeMesh.GetLayer(0 /* default layer */);
}
using (var fbxLayerElement = FbxLayerElementNormal.Create(cubeMesh, "Normals"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
// Assign the normal vectors in the same order the control points were defined
FbxVector4[] normals = { normalZPos, normalXPos, normalZNeg, normalXNeg, normalYPos, normalYNeg };
for (int n = 0; n < normals.Length; n++)
{
for (int i = 0; i < 4; i++)
{
fbxElementArray.Add(normals [n]);
}
}
fbxLayer.SetNormals(fbxLayerElement);
}
/// Set the binormals on Layer 0.
using (var fbxLayerElement = FbxLayerElementBinormal.Create(cubeMesh, "Binormals"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < cubeMesh.GetControlPointsCount(); n++)
{
fbxElementArray.Add(new FbxVector4(-1, 0, 1)); // TODO: set to correct values
}
fbxLayer.SetBinormals(fbxLayerElement);
}
/// Set the tangents on Layer 0.
using (var fbxLayerElement = FbxLayerElementTangent.Create(cubeMesh, "Tangents"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < cubeMesh.GetControlPointsCount(); n++)
{
fbxElementArray.Add(new FbxVector4(0, -1, 1)); // TODO: set to correct values
}
fbxLayer.SetTangents(fbxLayerElement);
}
// set the vertex colors
using (var fbxLayerElement = FbxLayerElementVertexColor.Create(cubeMesh, "VertexColors"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
// make each vertex either black or white
for (int n = 0; n < cubeMesh.GetControlPointsCount(); n++)
{
fbxElementArray.Add(new FbxColor(n % 2, n % 2, n % 2));
}
fbxLayer.SetVertexColors(fbxLayerElement);
}
// set the UVs
using (var fbxLayerElement = FbxLayerElementUV.Create(cubeMesh, "UVSet"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eIndexToDirect);
// set texture coordinates per vertex
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < 8; n++)
{
fbxElementArray.Add(new FbxVector2(n % 2, 1)); // TODO: switch to correct values
}
// For each face index, point to a texture uv
FbxLayerElementArray fbxIndexArray = fbxLayerElement.GetIndexArray();
fbxIndexArray.SetCount(24);
for (int vertIndex = 0; vertIndex < 24; vertIndex++)
{
fbxIndexArray.SetAt(vertIndex, vertIndex % 8); // TODO: switch to correct values
}
fbxLayer.SetUVs(fbxLayerElement, FbxLayerElement.EType.eTextureDiffuse);
}
return(scene);
}
public void TestGetPolygonVertexNormal()
{
using (FbxMesh mesh = CreateObject("mesh")) {
mesh.InitControlPoints(4);
mesh.SetControlPointAt(new FbxVector4(0, 0, 0), 0);
mesh.SetControlPointAt(new FbxVector4(1, 0, 0), 1);
mesh.SetControlPointAt(new FbxVector4(1, 0, 1), 2);
mesh.SetControlPointAt(new FbxVector4(0, 0, 1), 3);
mesh.BeginPolygon();
mesh.AddPolygon(0);
mesh.AddPolygon(1);
mesh.AddPolygon(2);
mesh.AddPolygon(3);
mesh.EndPolygon();
// Add normals to the mesh
FbxVector4 normal0 = new FbxVector4(0, 0, 1);
FbxVector4 normal1 = new FbxVector4(0, 1, 0);
FbxVector4 normal2 = new FbxVector4(0, 1, 1);
FbxVector4 normal3 = new FbxVector4(0.301511344577764d, 0.904534033733291d, 0.301511344577764d);
using (var fbxLayerElement = FbxLayerElementNormal.Create(mesh, "Normals")) {
// Set the Normals on the default layer
FbxLayer fbxLayer = mesh.GetLayer(0);
if (fbxLayer == null)
{
mesh.CreateLayer();
fbxLayer = mesh.GetLayer(0);
}
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
fbxElementArray.Add(normal0);
fbxElementArray.Add(normal1);
fbxElementArray.Add(normal2);
fbxElementArray.Add(normal3);
fbxLayer.SetNormals(fbxLayerElement);
}
FbxVector4 readNormal0;
FbxVector4 readNormal1;
FbxVector4 readNormal2;
FbxVector4 readNormal3;
// test if all normals can be read
Assert.IsTrue(mesh.GetPolygonVertexNormal(0, 0, out readNormal0));
Assert.IsTrue(mesh.GetPolygonVertexNormal(0, 1, out readNormal1));
Assert.IsTrue(mesh.GetPolygonVertexNormal(0, 2, out readNormal2));
Assert.IsTrue(mesh.GetPolygonVertexNormal(0, 3, out readNormal3));
// test if the normals have the correct values
Assert.That(normal0.X, Is.EqualTo(readNormal0.X).Using(FloatEqualityComparer.Instance));
Assert.That(normal0.Y, Is.EqualTo(readNormal0.Y).Using(FloatEqualityComparer.Instance));
Assert.That(normal0.Z, Is.EqualTo(readNormal0.Z).Using(FloatEqualityComparer.Instance));
Assert.That(normal0.W, Is.EqualTo(readNormal0.W).Using(FloatEqualityComparer.Instance));
Assert.That(normal1.X, Is.EqualTo(readNormal1.X).Using(FloatEqualityComparer.Instance));
Assert.That(normal1.Y, Is.EqualTo(readNormal1.Y).Using(FloatEqualityComparer.Instance));
Assert.That(normal1.Z, Is.EqualTo(readNormal1.Z).Using(FloatEqualityComparer.Instance));
Assert.That(normal1.W, Is.EqualTo(readNormal1.W).Using(FloatEqualityComparer.Instance));
Assert.That(normal2.X, Is.EqualTo(readNormal2.X).Using(FloatEqualityComparer.Instance));
Assert.That(normal2.Y, Is.EqualTo(readNormal2.Y).Using(FloatEqualityComparer.Instance));
Assert.That(normal2.Z, Is.EqualTo(readNormal2.Z).Using(FloatEqualityComparer.Instance));
Assert.That(normal2.W, Is.EqualTo(readNormal2.W).Using(FloatEqualityComparer.Instance));
Assert.That(normal3.X, Is.EqualTo(readNormal3.X).Using(FloatEqualityComparer.Instance));
Assert.That(normal3.Y, Is.EqualTo(readNormal3.Y).Using(FloatEqualityComparer.Instance));
Assert.That(normal3.Z, Is.EqualTo(readNormal3.Z).Using(FloatEqualityComparer.Instance));
Assert.That(normal3.W, Is.EqualTo(readNormal3.W).Using(FloatEqualityComparer.Instance));
}
}
// For use only by FbxExportGlobals.
internal static FbxMesh CreateFbxMesh(FbxExportGlobals G, GeometryPool pool, string poolName)
{
FbxMesh fbxMesh = FbxMesh.Create(G.m_manager, poolName);
ExportMesh mesh = new ExportMesh(pool);
int nVerts = mesh.m_pool.m_Vertices.Count;
fbxMesh.InitControlPoints(nVerts);
unsafe
{
fixed(Vector3 *f = mesh.m_pool.m_Vertices.GetBackingArray())
{
Globals.SetControlPoints(fbxMesh, (IntPtr)f);
}
}
List <int> triangles = mesh.m_pool.m_Tris;
// Not available in Unity's wrappers
// fbxMesh.ReservePolygonCount(triangles.Count / 3);
// fbxMesh.ReservePolygonVertexCount(triangles.Count);
for (int i = 0; i < triangles.Count; i += 3)
{
fbxMesh.BeginPolygon(-1 /* Material */, -1 /* Texture */, -1 /* Group */, false /* Legacy */);
fbxMesh.AddPolygon(triangles[i]);
fbxMesh.AddPolygon(triangles[i + 1]);
fbxMesh.AddPolygon(triangles[i + 2]);
fbxMesh.EndPolygon();
}
FbxLayer layer0 = fbxMesh.GetLayer(0);
if (layer0 == null)
{
fbxMesh.CreateLayer();
layer0 = fbxMesh.GetLayer(0);
}
var layerElementNormal = FbxLayerElementNormal.Create(fbxMesh, "normals");
layerElementNormal.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
layerElementNormal.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
CopyToFbx(layerElementNormal.GetDirectArray(), mesh.m_pool.m_Normals);
layer0.SetNormals(layerElementNormal);
var layerElementColor = FbxLayerElementVertexColor.Create(fbxMesh, "color");
layerElementColor.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
layerElementColor.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
CopyToFbx(layerElementColor.GetDirectArray(), mesh.m_linearColor);
layer0.SetVertexColors(layerElementColor);
var layerElementTangent = FbxLayerElementTangent.Create(fbxMesh, "tangents");
layerElementTangent.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
layerElementTangent.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
CopyToFbx(layerElementTangent.GetDirectArray(), mesh.m_pool.m_Tangents);
layer0.SetTangents(layerElementTangent);
// Compute and export binormals since Unity's FBX importer won't import the tangents without
// them, even though they're not used.
var layerElementBinormal = FbxLayerElementBinormal.Create(fbxMesh, "binormals");
layerElementBinormal.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
layerElementBinormal.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
var binormals = mesh.m_pool.m_Tangents
.Select((tan, idx) => {
var b3 = Vector3.Cross(tan, mesh.m_pool.m_Normals[idx]) * tan.w;
return(new Vector4(b3.x, b3.y, b3.z, 1));
})
.ToList();
CopyToFbx(layerElementBinormal.GetDirectArray(), binormals);
layer0.SetBinormals(layerElementBinormal);
var layerElementMaterial = FbxLayerElementMaterial.Create(fbxMesh, "materials");
layerElementMaterial.SetMappingMode(FbxLayerElement.EMappingMode.eAllSame);
layer0.SetMaterials(layerElementMaterial);
// Export everything up to the last uvset containing data
// even if some intermediate uvsets have no data.
// Otherwise Unity will get the uvset numbering wrong on import
List <List <Vector2> > uvSets = DemuxTexcoords(mesh.m_pool);
for (int i = 0; i < uvSets.Count; i++)
{
FbxLayer layerN = fbxMesh.GetLayer(i);
while (layerN == null)
{
fbxMesh.CreateLayer();
layerN = fbxMesh.GetLayer(i);
}
var layerElementUV = FbxLayerElementUV.Create(fbxMesh, String.Format("uv{0}", i));
layerElementUV.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
layerElementUV.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
List <Vector2> uvSet = uvSets[i];
if (uvSet == null)
{
// Do nothing
// Replicates what the old fbx export code did; seems to work fine
}
else
{
Debug.Assert(uvSet.Count == nVerts);
CopyToFbx(layerElementUV.GetDirectArray(), uvSet);
}
layerN.SetUVs(layerElementUV, FbxLayerElement.EType.eTextureDiffuse);
}
return(fbxMesh);
}
/// <summary>
/// Export the mesh's normals, binormals and tangents using
/// layer 0.
/// </summary>
///
public void ExportNormalsEtc(MeshInfo mesh, FbxMesh fbxMesh)
{
/// Set the Normals on Layer 0.
FbxLayer fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
if (fbxLayer == null)
{
fbxMesh.CreateLayer();
fbxLayer = fbxMesh.GetLayer(0 /* default layer */);
}
using (var fbxLayerElement = FbxLayerElementNormal.Create(fbxMesh, "Normals"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
// TODO: normals for each triangle vertex instead of averaged per control point
//fbxNormalLayer.SetMappingMode (FbxLayerElement.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < mesh.Normals.Length; n++)
{
fbxElementArray.Add(new FbxVector4(mesh.Normals [n] [0],
mesh.Normals [n] [1],
mesh.Normals [n] [2]));
}
fbxLayer.SetNormals(fbxLayerElement);
}
/// Set the binormals on Layer 0.
using (var fbxLayerElement = FbxLayerElementBinormal.Create(fbxMesh, "Binormals"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
// TODO: normals for each triangle vertex instead of averaged per control point
//fbxBinormalLayer.SetMappingMode (FbxLayerElement.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < mesh.Binormals.Length; n++)
{
fbxElementArray.Add(new FbxVector4(mesh.Binormals [n] [0],
mesh.Binormals [n] [1],
mesh.Binormals [n] [2]));
}
fbxLayer.SetBinormals(fbxLayerElement);
}
/// Set the tangents on Layer 0.
using (var fbxLayerElement = FbxLayerElementTangent.Create(fbxMesh, "Tangents"))
{
fbxLayerElement.SetMappingMode(FbxLayerElement.EMappingMode.eByControlPoint);
// TODO: normals for each triangle vertex instead of averaged per control point
//fbxBinormalLayer.SetMappingMode (FbxLayerElement.eByPolygonVertex);
fbxLayerElement.SetReferenceMode(FbxLayerElement.EReferenceMode.eDirect);
// Add one normal per each vertex face index (3 per triangle)
FbxLayerElementArray fbxElementArray = fbxLayerElement.GetDirectArray();
for (int n = 0; n < mesh.Normals.Length; n++)
{
fbxElementArray.Add(new FbxVector4(mesh.Tangents [n] [0],
mesh.Tangents [n] [1],
mesh.Tangents [n] [2]));
}
fbxLayer.SetTangents(fbxLayerElement);
}
}
