//converts a FBX mesh to a CC mesh
static ccMesh* FromFbxMesh(FbxMesh* fbxMesh, bool alwaysDisplayLoadDialog/*=true*/, bool* coordinatesShiftEnabled/*=0*/, CCVector3d* coordinatesShift/*=0*/)
{
if (!fbxMesh)
return 0;
int polyCount = fbxMesh->GetPolygonCount();
//fbxMesh->GetLayer(
unsigned triCount = 0;
unsigned polyVertCount = 0; //different from vertCount (vertices can be counted multiple times here!)
//as we can't load all polygons (yet ;) we already look if we can load any!
{
unsigned skipped = 0;
for (int i=0; i<polyCount; ++i)
{
int pSize = fbxMesh->GetPolygonSize(i);
if (pSize == 3)
{
++triCount;
polyVertCount += 3;
}
else if (pSize == 4)
{
triCount += 2;
polyVertCount += 4;
}
else
{
++skipped;
}
}
if (triCount == 0)
{
ccLog::Warning(QString("[FBX] No triangle or quad found in mesh '%1'! (polygons with more than 4 vertices are not supported for the moment)").arg(fbxMesh->GetName()));
return 0;
}
else if (skipped != 0)
{
ccLog::Warning(QString("[FBX] Some polygons in mesh '%1' were ignored (%2): polygons with more than 4 vertices are not supported for the moment)").arg(fbxMesh->GetName()).arg(skipped));
return 0;
}
}
int vertCount = fbxMesh->GetControlPointsCount();
if (vertCount <= 0)
{
ccLog::Warning(QString("[FBX] Mesh '%1' has no vetex or no polygon?!").arg(fbxMesh->GetName()));
return 0;
}
ccPointCloud* vertices = new ccPointCloud("vertices");
ccMesh* mesh = new ccMesh(vertices);
mesh->setName(fbxMesh->GetName());
mesh->addChild(vertices);
vertices->setEnabled(false);
if (!mesh->reserve(static_cast<unsigned>(triCount)) || !vertices->reserve(vertCount))
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1'!").arg(fbxMesh->GetName()));
delete mesh;
return 0;
}
//colors
{
for (int l=0; l<fbxMesh->GetElementVertexColorCount(); l++)
{
FbxGeometryElementVertexColor* vertColor = fbxMesh->GetElementVertexColor(l);
//CC can only handle per-vertex colors
if (vertColor->GetMappingMode() == FbxGeometryElement::eByControlPoint)
{
if (vertColor->GetReferenceMode() == FbxGeometryElement::eDirect
|| vertColor->GetReferenceMode() == FbxGeometryElement::eIndexToDirect)
{
if (vertices->reserveTheRGBTable())
{
switch (vertColor->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
for (int i=0; i<vertCount; ++i)
{
FbxColor c = vertColor->GetDirectArray().GetAt(i);
vertices->addRGBColor( static_cast<colorType>(c.mRed * MAX_COLOR_COMP),
static_cast<colorType>(c.mGreen * MAX_COLOR_COMP),
static_cast<colorType>(c.mBlue * MAX_COLOR_COMP) );
}
}
break;
case FbxGeometryElement::eIndexToDirect:
{
for (int i=0; i<vertCount; ++i)
{
int id = vertColor->GetIndexArray().GetAt(i);
FbxColor c = vertColor->GetDirectArray().GetAt(id);
vertices->addRGBColor( static_cast<colorType>(c.mRed * MAX_COLOR_COMP),
static_cast<colorType>(c.mGreen * MAX_COLOR_COMP),
static_cast<colorType>(c.mBlue * MAX_COLOR_COMP) );
}
}
break;
default:
assert(false);
break;
}
vertices->showColors(true);
mesh->showColors(true);
break; //no need to look for other color fields (we won't be able to handle them!
}
else
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' colors!").arg(fbxMesh->GetName()));
}
}
else
{
ccLog::Warning(QString("[FBX] Color field #%i of mesh '%1' will be ignored (unhandled type)").arg(l).arg(fbxMesh->GetName()));
}
}
else
{
ccLog::Warning(QString("[FBX] Color field #%i of mesh '%1' will be ignored (unhandled type)").arg(l).arg(fbxMesh->GetName()));
}
}
}
//normals can be per vertices or per-triangle
int perPointNormals = -1;
int perVertexNormals = -1;
int perPolygonNormals = -1;
{
for (int j=0; j<fbxMesh->GetElementNormalCount(); j++)
{
FbxGeometryElementNormal* leNormals = fbxMesh->GetElementNormal(j);
switch(leNormals->GetMappingMode())
{
case FbxGeometryElement::eByControlPoint:
perPointNormals = j;
break;
case FbxGeometryElement::eByPolygonVertex:
perVertexNormals = j;
break;
case FbxGeometryElement::eByPolygon:
perPolygonNormals = j;
break;
default:
//not handled
break;
}
}
}
//per-point normals
if (perPointNormals >= 0)
{
FbxGeometryElementNormal* leNormals = fbxMesh->GetElementNormal(perPointNormals);
FbxLayerElement::EReferenceMode refMode = leNormals->GetReferenceMode();
const FbxLayerElementArrayTemplate<FbxVector4>& normals = leNormals->GetDirectArray();
assert(normals.GetCount() == vertCount);
if (normals.GetCount() != vertCount)
{
ccLog::Warning(QString("[FBX] Wrong number of normals on mesh '%1'!").arg(fbxMesh->GetName()));
perPointNormals = -1;
}
else if (!vertices->reserveTheNormsTable())
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' normals!").arg(fbxMesh->GetName()));
perPointNormals = -1;
}
else
{
//import normals
for (int i=0; i<vertCount; ++i)
{
int id = refMode != FbxGeometryElement::eDirect ? leNormals->GetIndexArray().GetAt(i) : i;
FbxVector4 N = normals.GetAt(id);
//convert to CC-structure
CCVector3 Npc( static_cast<PointCoordinateType>(N.Buffer()[0]),
static_cast<PointCoordinateType>(N.Buffer()[1]),
static_cast<PointCoordinateType>(N.Buffer()[2]) );
vertices->addNorm(Npc.u);
}
vertices->showNormals(true);
mesh->showNormals(true);
//no need to import the other normals (if any)
perVertexNormals = -1;
perPolygonNormals = -1;
}
}
//per-triangle normals
NormsIndexesTableType* normsTable = 0;
if (perVertexNormals >= 0 || perPolygonNormals >= 0)
{
normsTable = new NormsIndexesTableType();
if (!normsTable->reserve(polyVertCount) || !mesh->reservePerTriangleNormalIndexes())
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' normals!").arg(fbxMesh->GetName()));
normsTable->release();
normsTable = 0;
}
else
{
mesh->setTriNormsTable(normsTable);
mesh->addChild(normsTable);
vertices->showNormals(true);
mesh->showNormals(true);
}
}
//import textures UV
int perVertexUV = -1;
bool hasTexUV = false;
{
for (int l=0; l<fbxMesh->GetElementUVCount(); ++l)
{
FbxGeometryElementUV* leUV = fbxMesh->GetElementUV(l);
//per-point UV coordinates
if (leUV->GetMappingMode() == FbxGeometryElement::eByControlPoint)
{
TextureCoordsContainer* vertTexUVTable = new TextureCoordsContainer();
if (!vertTexUVTable->reserve(vertCount) || !mesh->reservePerTriangleTexCoordIndexes())
{
vertTexUVTable->release();
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' UV coordinates!").arg(fbxMesh->GetName()));
}
else
{
FbxLayerElement::EReferenceMode refMode = leUV->GetReferenceMode();
for (int i=0; i<vertCount; ++i)
{
int id = refMode != FbxGeometryElement::eDirect ? leUV->GetIndexArray().GetAt(i) : i;
FbxVector2 uv = leUV->GetDirectArray().GetAt(id);
//convert to CC-structure
float uvf[2] = {static_cast<float>(uv.Buffer()[0]),
static_cast<float>(uv.Buffer()[1])};
vertTexUVTable->addElement(uvf);
}
mesh->addChild(vertTexUVTable);
hasTexUV = true;
}
perVertexUV = -1;
break; //no need to look to the other UV fields (can't handle them!)
}
else if (leUV->GetMappingMode() == FbxGeometryElement::eByPolygonVertex)
{
//per-vertex UV coordinates
perVertexUV = l;
}
}
}
//per-vertex UV coordinates
TextureCoordsContainer* texUVTable = 0;
if (perVertexUV >= 0)
{
texUVTable = new TextureCoordsContainer();
if (!texUVTable->reserve(polyVertCount) || !mesh->reservePerTriangleTexCoordIndexes())
{
texUVTable->release();
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' UV coordinates!").arg(fbxMesh->GetName()));
}
else
{
mesh->addChild(texUVTable);
hasTexUV = true;
}
}
//import polygons
{
for (int i=0; i<polyCount; ++i)
{
int pSize = fbxMesh->GetPolygonSize(i);
if (pSize > 4)
{
//not handled for the moment
continue;
}
//we split quads into two triangles
//vertex indices
int i1 = fbxMesh->GetPolygonVertex(i, 0);
int i2 = fbxMesh->GetPolygonVertex(i, 1);
int i3 = fbxMesh->GetPolygonVertex(i, 2);
mesh->addTriangle(i1,i2,i3);
int i4 = -1;
if (pSize == 4)
{
i4 = fbxMesh->GetPolygonVertex(i, 3);
mesh->addTriangle(i1,i3,i4);
}
if (hasTexUV)
{
if (texUVTable)
{
assert(perVertexUV >= 0);
int uvIndex = static_cast<int>(texUVTable->currentSize());
for (int j=0; j<pSize; ++j)
{
int lTextureUVIndex = fbxMesh->GetTextureUVIndex(i, j);
FbxGeometryElementUV* leUV = fbxMesh->GetElementUV(perVertexUV);
FbxVector2 uv = leUV->GetDirectArray().GetAt(lTextureUVIndex);
//convert to CC-structure
float uvf[2] = {static_cast<float>(uv.Buffer()[0]),
static_cast<float>(uv.Buffer()[1])};
texUVTable->addElement(uvf);
}
mesh->addTriangleTexCoordIndexes(uvIndex,uvIndex+1,uvIndex+2);
if (pSize == 4)
mesh->addTriangleTexCoordIndexes(uvIndex,uvIndex+2,uvIndex+3);
}
else
{
mesh->addTriangleTexCoordIndexes(i1,i2,i3);
if (pSize == 4)
mesh->addTriangleTexCoordIndexes(i1,i3,i4);
}
}
//per-triangle normals
if (normsTable)
{
int nIndex = static_cast<int>(normsTable->currentSize());
for (int j=0; j<pSize; ++j)
{
FbxVector4 N;
fbxMesh->GetPolygonVertexNormal(i, j, N);
CCVector3 Npc( static_cast<PointCoordinateType>(N.Buffer()[0]),
static_cast<PointCoordinateType>(N.Buffer()[1]),
static_cast<PointCoordinateType>(N.Buffer()[2]) );
normsTable->addElement(ccNormalVectors::GetNormIndex(Npc.u));
}
mesh->addTriangleNormalIndexes(nIndex,nIndex+1,nIndex+2);
if (pSize == 4)
mesh->addTriangleNormalIndexes(nIndex,nIndex+2,nIndex+3);
}
}
if (mesh->size() == 0)
{
ccLog::Warning(QString("[FBX] No triangle found in mesh '%1'! (only triangles are supported for the moment)").arg(fbxMesh->GetName()));
delete mesh;
return 0;
}
}
//import vertices
{
const FbxVector4* fbxVertices = fbxMesh->GetControlPoints();
assert(vertices && fbxVertices);
CCVector3d Pshift(0,0,0);
for (int i=0; i<vertCount; ++i, ++fbxVertices)
{
const double* P = fbxVertices->Buffer();
assert(P[3] == 0);
//coordinate shift management
if (i == 0)
{
bool shiftAlreadyEnabled = (coordinatesShiftEnabled && *coordinatesShiftEnabled && coordinatesShift);
if (shiftAlreadyEnabled)
Pshift = *coordinatesShift;
bool applyAll = false;
if ( sizeof(PointCoordinateType) < 8
&& ccCoordinatesShiftManager::Handle(P,0,alwaysDisplayLoadDialog,shiftAlreadyEnabled,Pshift,0,applyAll))
{
vertices->setGlobalShift(Pshift);
ccLog::Warning("[FBX] Mesh has been recentered! Translation: (%.2f,%.2f,%.2f)",Pshift.x,Pshift.y,Pshift.z);
//we save coordinates shift information
if (applyAll && coordinatesShiftEnabled && coordinatesShift)
{
*coordinatesShiftEnabled = true;
*coordinatesShift = Pshift;
}
}
}
CCVector3 PV( static_cast<PointCoordinateType>(P[0] + Pshift.x),
static_cast<PointCoordinateType>(P[1] + Pshift.y),
static_cast<PointCoordinateType>(P[2] + Pshift.z) );
vertices->addPoint(PV);
}
}
//import textures
{
//TODO
}
return mesh;
}
//converts a FBX mesh to a CC mesh
static ccMesh* FromFbxMesh(FbxMesh* fbxMesh, FileIOFilter::LoadParameters& parameters)
{
if (!fbxMesh)
return 0;
int polyCount = fbxMesh->GetPolygonCount();
//fbxMesh->GetLayer(
unsigned triCount = 0;
unsigned polyVertCount = 0; //different from vertCount (vertices can be counted multiple times here!)
//as we can't load all polygons (yet ;) we already look if we can load any!
{
unsigned skipped = 0;
for (int i=0; i<polyCount; ++i)
{
int pSize = fbxMesh->GetPolygonSize(i);
if (pSize == 3)
{
++triCount;
polyVertCount += 3;
}
else if (pSize == 4)
{
triCount += 2;
polyVertCount += 4;
}
else
{
++skipped;
}
}
if (triCount == 0)
{
ccLog::Warning(QString("[FBX] No triangle or quad found in mesh '%1'! (polygons with more than 4 vertices are not supported for the moment)").arg(fbxMesh->GetName()));
return 0;
}
else if (skipped != 0)
{
ccLog::Warning(QString("[FBX] Some polygons in mesh '%1' were ignored (%2): polygons with more than 4 vertices are not supported for the moment)").arg(fbxMesh->GetName()).arg(skipped));
return 0;
}
}
int vertCount = fbxMesh->GetControlPointsCount();
if (vertCount <= 0)
{
ccLog::Warning(QString("[FBX] Mesh '%1' has no vetex or no polygon?!").arg(fbxMesh->GetName()));
return 0;
}
ccPointCloud* vertices = new ccPointCloud("vertices");
ccMesh* mesh = new ccMesh(vertices);
mesh->setName(fbxMesh->GetName());
mesh->addChild(vertices);
vertices->setEnabled(false);
if (!mesh->reserve(static_cast<unsigned>(triCount)) || !vertices->reserve(vertCount))
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1'!").arg(fbxMesh->GetName()));
delete mesh;
return 0;
}
//colors
{
for (int l=0; l<fbxMesh->GetElementVertexColorCount(); l++)
{
FbxGeometryElementVertexColor* vertColor = fbxMesh->GetElementVertexColor(l);
//CC can only handle per-vertex colors
if (vertColor->GetMappingMode() == FbxGeometryElement::eByControlPoint)
{
if (vertColor->GetReferenceMode() == FbxGeometryElement::eDirect
|| vertColor->GetReferenceMode() == FbxGeometryElement::eIndexToDirect)
{
if (vertices->reserveTheRGBTable())
{
switch (vertColor->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
for (int i=0; i<vertCount; ++i)
{
FbxColor c = vertColor->GetDirectArray().GetAt(i);
vertices->addRGBColor( static_cast<colorType>(c.mRed * ccColor::MAX),
static_cast<colorType>(c.mGreen * ccColor::MAX),
static_cast<colorType>(c.mBlue * ccColor::MAX) );
}
}
break;
case FbxGeometryElement::eIndexToDirect:
{
for (int i=0; i<vertCount; ++i)
{
int id = vertColor->GetIndexArray().GetAt(i);
FbxColor c = vertColor->GetDirectArray().GetAt(id);
vertices->addRGBColor( static_cast<colorType>(c.mRed * ccColor::MAX),
static_cast<colorType>(c.mGreen * ccColor::MAX),
static_cast<colorType>(c.mBlue * ccColor::MAX) );
}
}
break;
default:
assert(false);
break;
}
vertices->showColors(true);
mesh->showColors(true);
break; //no need to look for other color fields (we won't be able to handle them!
}
else
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' colors!").arg(fbxMesh->GetName()));
}
}
else
{
ccLog::Warning(QString("[FBX] Color field #%i of mesh '%1' will be ignored (unhandled type)").arg(l).arg(fbxMesh->GetName()));
}
}
else
{
ccLog::Warning(QString("[FBX] Color field #%i of mesh '%1' will be ignored (unhandled type)").arg(l).arg(fbxMesh->GetName()));
}
}
}
//normals can be per vertices or per-triangle
int perPointNormals = -1;
int perVertexNormals = -1;
int perPolygonNormals = -1;
{
for (int j=0; j<fbxMesh->GetElementNormalCount(); j++)
{
FbxGeometryElementNormal* leNormals = fbxMesh->GetElementNormal(j);
switch(leNormals->GetMappingMode())
{
case FbxGeometryElement::eByControlPoint:
perPointNormals = j;
break;
case FbxGeometryElement::eByPolygonVertex:
perVertexNormals = j;
break;
case FbxGeometryElement::eByPolygon:
perPolygonNormals = j;
break;
default:
//not handled
break;
}
}
}
//per-point normals
if (perPointNormals >= 0)
{
FbxGeometryElementNormal* leNormals = fbxMesh->GetElementNormal(perPointNormals);
FbxLayerElement::EReferenceMode refMode = leNormals->GetReferenceMode();
const FbxLayerElementArrayTemplate<FbxVector4>& normals = leNormals->GetDirectArray();
assert(normals.GetCount() == vertCount);
if (normals.GetCount() != vertCount)
{
ccLog::Warning(QString("[FBX] Wrong number of normals on mesh '%1'!").arg(fbxMesh->GetName()));
perPointNormals = -1;
}
else if (!vertices->reserveTheNormsTable())
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' normals!").arg(fbxMesh->GetName()));
perPointNormals = -1;
}
else
{
//import normals
for (int i=0; i<vertCount; ++i)
{
int id = refMode != FbxGeometryElement::eDirect ? leNormals->GetIndexArray().GetAt(i) : i;
FbxVector4 N = normals.GetAt(id);
//convert to CC-structure
CCVector3 Npc( static_cast<PointCoordinateType>(N.Buffer()[0]),
static_cast<PointCoordinateType>(N.Buffer()[1]),
static_cast<PointCoordinateType>(N.Buffer()[2]) );
vertices->addNorm(Npc);
}
vertices->showNormals(true);
mesh->showNormals(true);
//no need to import the other normals (if any)
perVertexNormals = -1;
perPolygonNormals = -1;
}
}
//per-triangle normals
NormsIndexesTableType* normsTable = 0;
if (perVertexNormals >= 0 || perPolygonNormals >= 0)
{
normsTable = new NormsIndexesTableType();
if (!normsTable->reserve(polyVertCount) || !mesh->reservePerTriangleNormalIndexes())
{
ccLog::Warning(QString("[FBX] Not enough memory to load mesh '%1' normals!").arg(fbxMesh->GetName()));
normsTable->release();
normsTable = 0;
}
else
{
mesh->setTriNormsTable(normsTable);
vertices->showNormals(true);
mesh->showNormals(true);
}
}
//materials
ccMaterialSet* materials = 0;
{
FbxNode* lNode = fbxMesh->GetNode();
int lMaterialCount = lNode ? lNode->GetMaterialCount() : 0;
for (int i=0; i<lMaterialCount; i++)
{
FbxSurfaceMaterial *lBaseMaterial = lNode->GetMaterial(i);
bool isLambert = lBaseMaterial->GetClassId().Is(FbxSurfaceLambert::ClassId);
bool isPhong = lBaseMaterial->GetClassId().Is(FbxSurfacePhong::ClassId);
if (isLambert || isPhong)
{
ccMaterial::Shared mat(new ccMaterial(lBaseMaterial->GetName()));
FbxSurfaceLambert* lLambertMat = static_cast<FbxSurfaceLambert*>(lBaseMaterial);
float ambient[4];
float diffuse[4];
float emission[4];
float specular[4];
FbxSurfacePhong* lPhongMat = isPhong ? static_cast<FbxSurfacePhong*>(lBaseMaterial) : 0;
for (int k=0; k<3; ++k)
{
ambient[k] = static_cast<float>(lLambertMat->Ambient.Get()[k]);
diffuse[k] = static_cast<float>(lLambertMat->Diffuse.Get()[k]);
emission[k] = static_cast<float>(lLambertMat->Emissive.Get()[k]);
if (lPhongMat)
{
specular[k] = static_cast<float>(lPhongMat->Specular.Get()[k]);
}
}
mat->setAmbient(ambient);
mat->setDiffuse(diffuse);
mat->setEmission(emission);
if (isPhong)
{
mat->setSpecular(specular);
assert(lPhongMat);
mat->setShininess(static_cast<float>(lPhongMat->Shininess));
}
//import associated texture (if any)
{
int lTextureIndex;
FBXSDK_FOR_EACH_TEXTURE(lTextureIndex)
{
FbxProperty lProperty = lBaseMaterial->FindProperty(FbxLayerElement::sTextureChannelNames[lTextureIndex]);
if( lProperty.IsValid() )
{
int lTextureCount = lProperty.GetSrcObjectCount<FbxTexture>();
FbxTexture* texture = 0; //we can handle only one texture per material! We'll take the non layered one by default (if any)
for (int j = 0; j < lTextureCount; ++j)
{
//Here we have to check if it's layeredtextures, or just textures:
FbxLayeredTexture *lLayeredTexture = lProperty.GetSrcObject<FbxLayeredTexture>(j);
if (lLayeredTexture)
{
//we don't handle layered textures!
/*int lNbTextures = lLayeredTexture->GetSrcObjectCount<FbxTexture>();
for (int k=0; k<lNbTextures; ++k)
{
FbxTexture* lTexture = lLayeredTexture->GetSrcObject<FbxTexture>(k);
if(lTexture)
{
}
}
//*/
}
else
{
//non-layered texture
FbxTexture* lTexture = lProperty.GetSrcObject<FbxTexture>(j);
if(lTexture)
{
//we take the first non layered texture by default
texture = lTexture;
break;
}
}
}
if (texture)
{
FbxFileTexture *lFileTexture = FbxCast<FbxFileTexture>(texture);
if (lFileTexture)
{
const char* texAbsoluteFilename = lFileTexture->GetFileName();
ccLog::PrintDebug(QString("[FBX] Texture absolue filename: %1").arg(texAbsoluteFilename));
if (texAbsoluteFilename != 0 && texAbsoluteFilename[0] != 0)
{
if (!mat->loadAndSetTexture(texAbsoluteFilename))
{
ccLog::Warning(QString("[FBX] Failed to load texture file: %1").arg(texAbsoluteFilename));
}
}
}
}
}
}
}
if (!materials)
{
materials = new ccMaterialSet("materials");
mesh->addChild(materials);
}
materials->addMaterial(mat);
}
else
{
ccLog::Warning(QString("[FBX] Material '%1' has an unhandled type").arg(lBaseMaterial->GetName()));
}
}
