// Converts a CC mesh to an FBX mesh
static FbxNode* ToFbxMesh(ccGenericMesh* mesh, FbxScene* pScene, QString filename, size_t meshIndex)
{
if (!mesh)
return 0;
FbxNode* lNode = FbxNode::Create(pScene,qPrintable(mesh->getName()));
FbxMesh* lMesh = FbxMesh::Create(pScene, qPrintable(mesh->getName()));
lNode->SetNodeAttribute(lMesh);
ccGenericPointCloud* cloud = mesh->getAssociatedCloud();
if (!cloud)
return 0;
unsigned vertCount = cloud->size();
unsigned faceCount = mesh->size();
// Create control points.
{
lMesh->InitControlPoints(vertCount);
FbxVector4* lControlPoints = lMesh->GetControlPoints();
for (unsigned i=0; i<vertCount; ++i)
{
const CCVector3* P = cloud->getPoint(i);
lControlPoints[i] = FbxVector4(P->x,P->y,P->z);
//lControlPoints[i] = FbxVector4(P->x,P->z,-P->y); //DGM: see loadFile (Y and Z are inverted)
}
}
ccMesh* asCCMesh = 0;
if (mesh->isA(CC_TYPES::MESH))
asCCMesh = static_cast<ccMesh*>(mesh);
// normals
if (mesh->hasNormals())
{
FbxGeometryElementNormal* lGeometryElementNormal = lMesh->CreateElementNormal();
if (mesh->hasTriNormals())
{
// We want to have one normal per vertex of each polygon,
// so we set the mapping mode to eByPolygonVertex.
lGeometryElementNormal->SetMappingMode(FbxGeometryElement::eByPolygonVertex);
lGeometryElementNormal->SetReferenceMode(FbxGeometryElement::eIndexToDirect);
lGeometryElementNormal->GetIndexArray().SetCount(faceCount*3);
if (asCCMesh)
{
NormsIndexesTableType* triNorms = asCCMesh->getTriNormsTable();
assert(triNorms);
for (unsigned i=0; i<triNorms->currentSize(); ++i)
{
const CCVector3& N = ccNormalVectors::GetNormal(triNorms->getValue(i));
FbxVector4 Nfbx(N.x,N.y,N.z);
lGeometryElementNormal->GetDirectArray().Add(Nfbx);
}
for (unsigned j=0; j<faceCount; ++j)
{
int i1,i2,i3;
asCCMesh->getTriangleNormalIndexes(j,i1,i2,i3);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+0, i1);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+1, i2);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+2, i3);
}
}
else
{
for (unsigned j=0; j<faceCount; ++j)
{
//we can't use the 'NormsIndexesTable' so we save all the normals of all the vertices
CCVector3 Na,Nb,Nc;
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Na.x,Na.y,Na.z));
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Nb.x,Nb.y,Nb.z));
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Nc.x,Nc.y,Nc.z));
mesh->getTriangleNormals(j,Na,Nb,Nc);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+0, static_cast<int>(j)*3+0);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+1, static_cast<int>(j)*3+1);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+2, static_cast<int>(j)*3+2);
}
}
}
else
{
// We want to have one normal for each vertex (or control point),
// so we set the mapping mode to eByControlPoint.
lGeometryElementNormal->SetMappingMode(FbxGeometryElement::eByControlPoint);
// The first method is to set the actual normal value
// for every control point.
lGeometryElementNormal->SetReferenceMode(FbxGeometryElement::eDirect);
for (unsigned i=0; i<vertCount; ++i)
{
const CCVector3& N = cloud->getPointNormal(i);
FbxVector4 Nfbx(N.x,N.y,N.z);
lGeometryElementNormal->GetDirectArray().Add(Nfbx);
}
}
}
else
{
ccLog::Warning("[FBX] Mesh has no normal! You can manually compute them (select it then call \"Edit > Normals > Compute\")");
}
// Set material mapping.
bool hasMaterial = false;
if (asCCMesh && asCCMesh->hasMaterials())
{
const ccMaterialSet* matSet = asCCMesh->getMaterialSet();
size_t matCount = matSet->size();
//check if we have textures
bool hasTextures = asCCMesh->hasTextures();
if (hasTextures)
{
//check that we actually have materials with textures as well!
hasTextures = false;
for (size_t i=0; i<matCount; ++i)
{
ccMaterial::CShared mat = matSet->at(i);
if (mat->hasTexture())
{
hasTextures = true;
break;
}
}
}
static const char gDiffuseElementName[] = "DiffuseUV";
// Create UV for Diffuse channel
if (hasTextures)
{
FbxGeometryElementUV* lUVDiffuseElement = lMesh->CreateElementUV(gDiffuseElementName);
assert(lUVDiffuseElement != 0);
lUVDiffuseElement->SetMappingMode(FbxGeometryElement::eByPolygonVertex);
lUVDiffuseElement->SetReferenceMode(FbxGeometryElement::eIndexToDirect);
//fill Direct Array
const TextureCoordsContainer* texCoords = asCCMesh->getTexCoordinatesTable();
assert(texCoords);
if (texCoords)
{
unsigned count = texCoords->currentSize();
lUVDiffuseElement->GetDirectArray().SetCount(static_cast<int>(count));
for (unsigned i=0; i<count; ++i)
{
const float* uv = texCoords->getValue(i);
lUVDiffuseElement->GetDirectArray().SetAt(i,FbxVector2(uv[0],uv[1]));
}
}
//fill Indexes Array
assert(asCCMesh->hasPerTriangleTexCoordIndexes());
if (asCCMesh->hasPerTriangleTexCoordIndexes())
{
unsigned triCount = asCCMesh->size();
lUVDiffuseElement->GetIndexArray().SetCount(static_cast<int>(3*triCount));
for (unsigned j=0; j<triCount; ++j)
{
int t1=0, t2=0, t3=0;
asCCMesh->getTriangleTexCoordinatesIndexes(j, t1, t2, t3);
lUVDiffuseElement->GetIndexArray().SetAt(j*3+0,t1);
lUVDiffuseElement->GetIndexArray().SetAt(j*3+1,t2);
lUVDiffuseElement->GetIndexArray().SetAt(j*3+2,t3);
}
}
}
//Textures used in this file
QMap<QString,QString> texFilenames;
//directory to save textures (if any)
QFileInfo info(filename);
QString textDirName = info.baseName() + QString(".fbm");
QDir baseDir = info.absoluteDir();
QDir texDir = QDir(baseDir.absolutePath() + QString("/") + textDirName);
for (size_t i=0; i<matCount; ++i)
{
ccMaterial::CShared mat = matSet->at(i);
FbxSurfacePhong *lMaterial = FbxSurfacePhong::Create(pScene, qPrintable(mat->getName()));
const ccColor::Rgbaf& emission = mat->getEmission();
const ccColor::Rgbaf& ambient = mat->getAmbient();
const ccColor::Rgbaf& diffuse = mat->getDiffuseFront();
const ccColor::Rgbaf& specular = mat->getDiffuseFront();
lMaterial->Emissive.Set(FbxDouble3(emission.r,emission.g,emission.b));
lMaterial->Ambient .Set(FbxDouble3( ambient.r, ambient.g, ambient.b));
lMaterial->Diffuse .Set(FbxDouble3( diffuse.r, diffuse.g, diffuse.b));
lMaterial->Specular.Set(FbxDouble3(specular.r,specular.g,specular.b));
lMaterial->Shininess = mat->getShininessFront();
lMaterial->ShadingModel.Set("Phong");
if (hasTextures && mat->hasTexture())
{
QString texFilename = mat->getTextureFilename();
//texture has not already been processed
if (!texFilenames.contains(texFilename))
{
//if necessary, we (try to) create a subfolder to store textures
if (!texDir.exists())
{
texDir = baseDir;
if (texDir.mkdir(textDirName))
{
texDir.cd(textDirName);
}
else
{
textDirName = QString();
ccLog::Warning("[FBX] Failed to create subfolder '%1' to store texture files (files will be stored next to the .fbx file)");
}
}
QFileInfo fileInfo(texFilename);
QString baseTexName = fileInfo.fileName();
//add extension
QString extension = QFileInfo(texFilename).suffix();
if (fileInfo.suffix().isEmpty())
baseTexName += QString(".png");
QString absoluteFilename = texDir.absolutePath() + QString("/") + baseTexName;
ccLog::PrintDebug(QString("[FBX] Material '%1' texture: %2").arg(mat->getName()).arg(absoluteFilename));
texFilenames[texFilename] = absoluteFilename;
}
//mat.texture.save(absoluteFilename);
// Set texture properties.
FbxFileTexture* lTexture = FbxFileTexture::Create(pScene,"DiffuseTexture");
assert(!texFilenames[texFilename].isEmpty());
lTexture->SetFileName(qPrintable(texFilenames[texFilename]));
lTexture->SetTextureUse(FbxTexture::eStandard);
lTexture->SetMappingType(FbxTexture::eUV);
lTexture->SetMaterialUse(FbxFileTexture::eModelMaterial);
lTexture->SetSwapUV(false);
lTexture->SetTranslation(0.0, 0.0);
lTexture->SetScale(1.0, 1.0);
lTexture->SetRotation(0.0, 0.0);
lTexture->UVSet.Set(FbxString(gDiffuseElementName)); // Connect texture to the proper UV
// don't forget to connect the texture to the corresponding property of the material
lMaterial->Diffuse.ConnectSrcObject(lTexture);
}
int matIndex = lNode->AddMaterial(lMaterial);
assert(matIndex == static_cast<int>(i));
}
//don't forget to save the texture files
{
for (QMap<QString,QString>::ConstIterator it = texFilenames.begin(); it != texFilenames.end(); ++it)
{
const QImage image = ccMaterial::GetTexture(it.key());
image.mirrored().save(it.value());
}
texFilenames.clear(); //don't need this anymore!
}
// Create 'triangle to material index' mapping
{
FbxGeometryElementMaterial* lMaterialElement = lMesh->CreateElementMaterial();
lMaterialElement->SetMappingMode(FbxGeometryElement::eByPolygon);
lMaterialElement->SetReferenceMode(FbxGeometryElement::eIndexToDirect);
}
hasMaterial = true;
}
// colors
if (cloud->hasColors())
{
FbxGeometryElementVertexColor* lGeometryElementVertexColor = lMesh->CreateElementVertexColor();
lGeometryElementVertexColor->SetMappingMode(FbxGeometryElement::eByControlPoint);
lGeometryElementVertexColor->SetReferenceMode(FbxGeometryElement::eDirect);
lGeometryElementVertexColor->GetDirectArray().SetCount(vertCount);
for (unsigned i=0; i<vertCount; ++i)
{
const colorType* C = cloud->getPointColor(i);
FbxColor col( static_cast<double>(C[0])/ccColor::MAX,
static_cast<double>(C[1])/ccColor::MAX,
static_cast<double>(C[2])/ccColor::MAX );
lGeometryElementVertexColor->GetDirectArray().SetAt(i,col);
}
if (!hasMaterial)
{
//it seems that we have to create a fake material in order for the colors to be displayed (in Unity and FBX Review at least)!
FbxSurfacePhong *lMaterial = FbxSurfacePhong::Create(pScene, "ColorMaterial");
lMaterial->Emissive.Set(FbxDouble3(0,0,0));
lMaterial->Ambient.Set(FbxDouble3(0,0,0));
lMaterial->Diffuse.Set(FbxDouble3(1,1,1));
lMaterial->Specular.Set(FbxDouble3(0,0,0));
lMaterial->Shininess = 0;
lMaterial->ShadingModel.Set("Phong");
FbxGeometryElementMaterial* lMaterialElement = lMesh->CreateElementMaterial();
lMaterialElement->SetMappingMode(FbxGeometryElement::eAllSame);
lMaterialElement->SetReferenceMode(FbxGeometryElement::eDirect);
lNode->AddMaterial(lMaterial);
}
}
// Create polygons
{
for (unsigned j=0; j<faceCount; ++j)
{
const CCLib::TriangleSummitsIndexes* tsi = mesh->getTriangleIndexes(j);
int matIndex = hasMaterial ? asCCMesh->getTriangleMtlIndex(j) : -1;
lMesh->BeginPolygon(matIndex);
lMesh->AddPolygon(tsi->i1);
lMesh->AddPolygon(tsi->i2);
lMesh->AddPolygon(tsi->i3);
lMesh->EndPolygon();
}
}
return lNode;
}
// Converts a CC mesh to an FBX mesh
static FbxNode* ToFbxMesh(ccGenericMesh* mesh, FbxScene* pScene)
{
if (!mesh)
return 0;
FbxMesh* lMesh = FbxMesh::Create(pScene, qPrintable(mesh->getName()));
ccGenericPointCloud* cloud = mesh->getAssociatedCloud();
if (!cloud)
return 0;
unsigned vertCount = cloud->size();
unsigned faceCount = mesh->size();
// Create control points.
{
lMesh->InitControlPoints(vertCount);
FbxVector4* lControlPoints = lMesh->GetControlPoints();
for (unsigned i=0; i<vertCount; ++i)
{
const CCVector3* P = cloud->getPoint(i);
lControlPoints[i] = FbxVector4(P->x,P->y,P->z);
}
}
ccMesh* asCCMesh = 0;
if (mesh->isA(CC_MESH))
asCCMesh = static_cast<ccMesh*>(mesh);
// normals
if (mesh->hasNormals())
{
FbxGeometryElementNormal* lGeometryElementNormal = lMesh->CreateElementNormal();
if (mesh->hasTriNormals())
{
// We want to have one normal per vertex of each polygon,
// so we set the mapping mode to eByPolygonVertex.
lGeometryElementNormal->SetMappingMode(FbxGeometryElement::eByPolygonVertex);
lGeometryElementNormal->SetReferenceMode(FbxGeometryElement::eIndexToDirect);
lGeometryElementNormal->GetIndexArray().SetCount(faceCount*3);
if (asCCMesh)
{
NormsIndexesTableType* triNorms = asCCMesh->getTriNormsTable();
assert(triNorms);
for (unsigned i=0; i<triNorms->currentSize(); ++i)
{
const PointCoordinateType* N = ccNormalVectors::GetNormal(triNorms->getValue(i));
FbxVector4 Nfbx(N[0],N[1],N[2]);
lGeometryElementNormal->GetDirectArray().Add(Nfbx);
}
for (unsigned j=0; j<faceCount; ++j)
{
int i1,i2,i3;
asCCMesh->getTriangleNormalIndexes(j,i1,i2,i3);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+0, i1);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+1, i2);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+2, i3);
}
}
else
{
for (unsigned j=0; j<faceCount; ++j)
{
//we can't use the 'NormsIndexesTable' so we save all the normals of all the vertices
CCVector3 Na,Nb,Nc;
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Na.x,Na.y,Na.z));
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Nb.x,Nb.y,Nb.z));
lGeometryElementNormal->GetDirectArray().Add(FbxVector4(Nc.x,Nc.y,Nc.z));
mesh->getTriangleNormals(j,Na,Nb,Nc);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+0, static_cast<int>(j)*3+0);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+1, static_cast<int>(j)*3+1);
lGeometryElementNormal->GetIndexArray().SetAt(static_cast<int>(j)*3+2, static_cast<int>(j)*3+2);
}
}
}
else
{
// We want to have one normal for each vertex (or control point),
// so we set the mapping mode to eByControlPoint.
lGeometryElementNormal->SetMappingMode(FbxGeometryElement::eByControlPoint);
// The first method is to set the actual normal value
// for every control point.
lGeometryElementNormal->SetReferenceMode(FbxGeometryElement::eDirect);
for (unsigned i=0; i<vertCount; ++i)
{
const PointCoordinateType* N = cloud->getPointNormal(i);
FbxVector4 Nfbx(N[0],N[1],N[2]);
lGeometryElementNormal->GetDirectArray().Add(Nfbx);
}
}
}
else
{
ccLog::Warning("[FBX] Mesh has no normal! You can manually compute them (select it then call \"Edit > Normals > Compute\")");
}
// colors
if (cloud->hasColors())
{
FbxGeometryElementVertexColor* lGeometryElementVertexColor = lMesh->CreateElementVertexColor();
lGeometryElementVertexColor->SetMappingMode(FbxGeometryElement::eByControlPoint);
lGeometryElementVertexColor->SetReferenceMode(FbxGeometryElement::eDirect);
for (unsigned i=0; i<vertCount; ++i)
{
const colorType* C = cloud->getPointColor(i);
FbxColor col( FbxDouble3( static_cast<double>(C[0])/MAX_COLOR_COMP,
static_cast<double>(C[1])/MAX_COLOR_COMP,
static_cast<double>(C[2])/MAX_COLOR_COMP ) );
lGeometryElementVertexColor->GetDirectArray().Add(col);
}
}
// Set material mapping.
//FbxGeometryElementMaterial* lMaterialElement = lMesh->CreateElementMaterial();
//lMaterialElement->SetMappingMode(FbxGeometryElement::eByPolygon);
//lMaterialElement->SetReferenceMode(FbxGeometryElement::eIndexToDirect);
// Create polygons. Assign material indices.
{
for (unsigned j=0; j<faceCount; ++j)
{
const CCLib::TriangleSummitsIndexes* tsi = mesh->getTriangleIndexes(j);
lMesh->BeginPolygon(static_cast<int>(j));
lMesh->AddPolygon(tsi->i1);
lMesh->AddPolygon(tsi->i2);
lMesh->AddPolygon(tsi->i3);
lMesh->EndPolygon();
}
}
FbxNode* lNode = FbxNode::Create(pScene,qPrintable(mesh->getName()));
lNode->SetNodeAttribute(lMesh);
//CreateMaterials(pScene, lMesh);
return lNode;
}
void ExportFbxMesh(const Value& obj)
{
string name = obj["Name"].GetString();
FbxNode* pNode = FbxNode::Create(pManager, name.c_str());
FbxMesh* pMesh = FbxMesh::Create(pManager, name.c_str());
pNode->AddNodeAttribute(pMesh);
pScene->GetRootNode()->AddChild(pNode);
int numVertex = obj["NumVertex"].GetInt();
{
pMesh->InitControlPoints(numVertex);
FbxVector4* lControlPoints = pMesh->GetControlPoints();
const Value& pos = obj["Position"];
for (int i = 0; i < numVertex; i++)
{
double x = pos[i * 3 + 0].GetDouble();
x = -x;
double y = pos[i * 3 + 1].GetDouble();
double z = pos[i * 3 + 2].GetDouble();
lControlPoints[i] = FbxVector4(x, y, z);
}
}
{
FbxGeometryElementNormal* lGeometryElementNormal = pMesh->CreateElementNormal();
lGeometryElementNormal->SetMappingMode(FbxGeometryElement::eByControlPoint);
lGeometryElementNormal->SetReferenceMode(FbxGeometryElement::eDirect);
FbxLayerElementArrayTemplate<FbxVector4>& array = lGeometryElementNormal->GetDirectArray();
const Value& normal = obj["Normal"];
for (int i = 0; i < numVertex; i++)
{
double x = normal[i * 3 + 0].GetDouble();
x = -x;
double y = normal[i * 3 + 1].GetDouble();
double z = normal[i * 3 + 2].GetDouble();
array.Add(FbxVector4(x, y, z));
}
}
{
FbxGeometryElementUV* lUVDiffuseElement = pMesh->CreateElementUV("DiffuseUV");
FBX_ASSERT(lUVDiffuseElement != NULL);
lUVDiffuseElement->SetMappingMode(FbxGeometryElement::eByControlPoint);
lUVDiffuseElement->SetReferenceMode(FbxGeometryElement::eDirect);
FbxLayerElementArrayTemplate<FbxVector2>& array = lUVDiffuseElement->GetDirectArray();
const Value& v = obj["UV0"];
for (int i = 0; i < numVertex; i++)
{
double x = v[i * 2 + 0].GetDouble();
double y = v[i * 2 + 1].GetDouble();
array.Add(FbxVector2(x, y));
}
}
{
const Value& color = obj["Color"];
if (!color.IsNull())
{
FbxGeometryElementVertexColor* pColorElement = pMesh->CreateElementVertexColor();
FBX_ASSERT(pColorElement != NULL);
pColorElement->SetMappingMode(FbxGeometryElement::eByControlPoint);
pColorElement->SetReferenceMode(FbxGeometryElement::eDirect);
FbxLayerElementArrayTemplate<FbxColor>& array = pColorElement->GetDirectArray();
for (int i = 0; i < numVertex; i++)
{
double r = color[i * 4 + 0].GetDouble();
double g = color[i * 4 + 1].GetDouble();
double b = color[i * 4 + 2].GetDouble();
double a = color[i * 4 + 3].GetDouble();
array.Add(FbxColor(r, g, b, a));
}
}
}
{
const Value& Indeices = obj["Indeices"];
for (uint32_t subMesh = 0; subMesh < Indeices.Size(); subMesh++)
{
const Value& index0 = Indeices[subMesh];
int numIndex = index0.Size();
printf("index %d\n", numIndex);
for (int i = 0; i < numIndex / 3; i++)
{
pMesh->BeginPolygon(-1, -1, subMesh);
int index[3] = {
index0[i * 3 + 0].GetInt(),
index0[i * 3 + 1].GetInt(),
index0[i * 3 + 2].GetInt(),
};
pMesh->AddPolygon(index[0]);
pMesh->AddPolygon(index[2]);
pMesh->AddPolygon(index[1]);
pMesh->EndPolygon();
}
}
}
//////////////////////////////////////////////////////////////////////////
// export skin
const Value& boneIndex = obj["BoneIndex"];
if (!boneIndex.IsNull())
{
if (fbxBones.empty())
{
printf("no bones, can not export skin");
return;
}
const Value& boneWeight = obj["BoneWeight"];
vector<FbxCluster*> clusters(fbxBones.size(), NULL);
for (uint32_t i = 0; i < fbxBones.size(); i++) {
FbxCluster* pCluster = FbxCluster::Create(pScene, "");
pCluster->SetLink(fbxBones[i]);
pCluster->SetLinkMode(FbxCluster::eTotalOne);
clusters[i] = pCluster;
}
for (int i = 0; i < numVertex; i++) {
for (int j = 0; j < 4; j++) {
int bone = boneIndex[i * 4 + j].GetInt();
double weight = boneWeight[i * 4 + j].GetDouble();
clusters[bone]->AddControlPointIndex(i, weight);
}
}
FbxSkin* lSkin = FbxSkin::Create(pScene, "");
FbxScene* p = pNode->GetScene();
FbxAMatrix modelMatrix = pNode->EvaluateGlobalTransform();
for (uint32_t i = 0; i < clusters.size(); i++) {
clusters[i]->SetTransformMatrix(modelMatrix);
FbxAMatrix boneMatrix = fbxBones[i]->EvaluateGlobalTransform();
clusters[i]->SetTransformLinkMatrix(boneMatrix);
lSkin->AddCluster(clusters[i]);
}
pMesh->AddDeformer(lSkin);
}
}