void ccGenericMesh::applyGLTransformation(const ccGLMatrix& trans)
{
//vertices should be handled another way!
//we must take care of the triangle normals!
if (m_triNormals && (!getParent() || !getParent()->isKindOf(CC_MESH)))
{
bool recoded = false;
//if there is more triangle normals than the size of the compressed
//normals array, we recompress the array instead of recompressing each normal
unsigned i,numTriNormals = m_triNormals->currentSize();
if (numTriNormals>ccNormalVectors::GetNumberOfVectors())
{
NormsIndexesTableType* newNorms = new NormsIndexesTableType;
if (newNorms->reserve(ccNormalVectors::GetNumberOfVectors()))
{
for (i=0; i<ccNormalVectors::GetNumberOfVectors(); i++)
{
CCVector3 new_n(ccNormalVectors::GetNormal(i));
trans.applyRotation(new_n);
normsType newNormIndex = ccNormalVectors::GetNormIndex(new_n.u);
newNorms->addElement(newNormIndex);
}
m_triNormals->placeIteratorAtBegining();
for (i=0; i<numTriNormals; i++)
{
m_triNormals->setValue(i,newNorms->getValue(m_triNormals->getCurrentValue()));
m_triNormals->forwardIterator();
}
recoded=true;
}
newNorms->clear();
newNorms->release();
newNorms=0;
}
//if there is less triangle normals than the compressed normals array size
//(or if there is not enough memory to instantiate the temporary array),
//we recompress each normal ...
if (!recoded)
{
//on recode direct chaque normale
m_triNormals->placeIteratorAtBegining();
for (i=0; i<numTriNormals; i++)
{
normsType* _theNormIndex = m_triNormals->getCurrentValuePtr();
CCVector3 new_n(ccNormalVectors::GetNormal(*_theNormIndex));
trans.applyRotation(new_n.u);
*_theNormIndex = ccNormalVectors::GetNormIndex(new_n.u);
m_triNormals->forwardIterator();
}
}
}
else
{
//TODO: process failed!
}
}
const ccGenericPrimitive& ccGenericPrimitive::operator += (const ccGenericPrimitive& prim)
{
ccPointCloud* verts = vertices();
unsigned vertCount = verts->size();
unsigned facesCount = size();
unsigned triFacesNormCount = (m_triNormals ? m_triNormals->currentSize() : 0);
//count new number of vertices & faces
unsigned newVertCount = vertCount + prim.getAssociatedCloud()->size();
unsigned newFacesCount = facesCount + prim.size();
bool primHasVertNorms = prim.getAssociatedCloud()->hasNormals();
bool primHasFaceNorms = prim.hasTriNormals();
//reserve memory
if (verts->reserve(newVertCount)
&& (!primHasVertNorms || verts->reserveTheNormsTable())
&& reserve(newFacesCount)
&& (!primHasFaceNorms || m_triNormalIndexes || reservePerTriangleNormalIndexes()))
{
//copy vertices & normals
ccGenericPointCloud* cloud = prim.getAssociatedCloud();
unsigned i;
for (i=0;i<cloud->size();++i)
{
verts->addPoint(*cloud->getPoint(i));
if (primHasVertNorms)
verts->addNormIndex(cloud->getPointNormalIndex(i));
}
//copy face normals
if (primHasFaceNorms)
{
const NormsIndexesTableType* primNorms = prim.getTriNormsTable();
assert(primNorms);
unsigned primTriNormCount = primNorms->currentSize();
NormsIndexesTableType* normsTable = (m_triNormals ? m_triNormals : new NormsIndexesTableType());
if (!normsTable || !normsTable->reserve(triFacesNormCount+primTriNormCount))
{
ccLog::Error("[ccGenericPrimitive::operator +] Not enough memory!");
return *this;
}
//attach table if not done already
if (!m_triNormals)
{
setTriNormsTable(normsTable);
assert(m_triNormals);
//primitives must have their normal table as child!
addChild(m_triNormals);
}
for (unsigned i=0; i<primTriNormCount; ++i)
normsTable->addElement(primNorms->getValue(i));
}
//copy faces
for (i=0;i<prim.size();++i)
{
const CCLib::TriangleSummitsIndexes* tsi = prim.getTriangleIndexes(i);
addTriangle(vertCount+tsi->i1,vertCount+tsi->i2,vertCount+tsi->i3);
if (primHasFaceNorms)
{
const int* normIndexes = prim.m_triNormalIndexes->getValue(i);
assert(normIndexes);
addTriangleNormalIndexes(triFacesNormCount+normIndexes[0],triFacesNormCount+normIndexes[1],triFacesNormCount+normIndexes[2]);
}
}
}
else
{
ccLog::Error("[ccGenericPrimitive::operator +] Not enough memory!");
}
return *this;
}
//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;
}
CC_FILE_ERROR ObjFilter::loadFile(QString filename, ccHObject& container, LoadParameters& parameters)
{
ccLog::Print(QString("[OBJ] ") + filename);
//open file
QFile file(filename);
if (!file.open(QFile::ReadOnly))
return CC_FERR_READING;
QTextStream stream(&file);
//current vertex shift
CCVector3d Pshift(0,0,0);
//vertices
ccPointCloud* vertices = new ccPointCloud("vertices");
int pointsRead = 0;
//facets
unsigned int facesRead = 0;
unsigned int totalFacesRead = 0;
int maxVertexIndex = -1;
//base mesh
ccMesh* baseMesh = new ccMesh(vertices);
baseMesh->setName(QFileInfo(filename).baseName());
//we need some space already reserved!
if (!baseMesh->reserve(128))
{
ccLog::Error("Not engouh memory!");
return CC_FERR_NOT_ENOUGH_MEMORY;
}
//groups (starting index + name)
std::vector<std::pair<unsigned,QString> > groups;
//materials
ccMaterialSet* materials = 0;
bool hasMaterial = false;
int currentMaterial = -1;
bool currentMaterialDefined = false;
bool materialsLoadFailed = true;
//texture coordinates
TextureCoordsContainer* texCoords = 0;
bool hasTexCoords = false;
int texCoordsRead = 0;
int maxTexCoordIndex = -1;
//normals
NormsIndexesTableType* normals = 0;
int normsRead = 0;
bool normalsPerFacet = false;
int maxTriNormIndex = -1;
//progress dialog
ccProgressDialog pDlg(true);
pDlg.setMethodTitle("OBJ file");
pDlg.setInfo("Loading in progress...");
pDlg.setRange(0,static_cast<int>(file.size()));
pDlg.show();
QApplication::processEvents();
//common warnings that can appear multiple time (we avoid to send too many messages to the console!)
enum OBJ_WARNINGS { INVALID_NORMALS = 0,
INVALID_INDEX = 1,
NOT_ENOUGH_MEMORY = 2,
INVALID_LINE = 3,
CANCELLED_BY_USER = 4,
};
bool objWarnings[5] = { false, false, false, false, false };
bool error = false;
try
{
unsigned lineCount = 0;
unsigned polyCount = 0;
QString currentLine = stream.readLine();
while (!currentLine.isNull())
{
if ((++lineCount % 2048) == 0)
{
if (pDlg.wasCanceled())
{
error = true;
objWarnings[CANCELLED_BY_USER] = true;
break;
}
pDlg.setValue(static_cast<int>(file.pos()));
QApplication::processEvents();
}
QStringList tokens = QString(currentLine).split(QRegExp("\\s+"),QString::SkipEmptyParts);
//skip comments & empty lines
if( tokens.empty() || tokens.front().startsWith('/',Qt::CaseInsensitive) || tokens.front().startsWith('#',Qt::CaseInsensitive) )
{
currentLine = stream.readLine();
continue;
}
/*** new vertex ***/
if (tokens.front() == "v")
{
//reserve more memory if necessary
if (vertices->size() == vertices->capacity())
{
if (!vertices->reserve(vertices->capacity()+MAX_NUMBER_OF_ELEMENTS_PER_CHUNK))
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
}
//malformed line?
if (tokens.size() < 4)
{
objWarnings[INVALID_LINE] = true;
error = true;
break;
}
CCVector3d Pd( tokens[1].toDouble(), tokens[2].toDouble(), tokens[3].toDouble() );
//first point: check for 'big' coordinates
if (pointsRead == 0)
{
if (HandleGlobalShift(Pd,Pshift,parameters))
{
vertices->setGlobalShift(Pshift);
ccLog::Warning("[OBJ] Cloud has been recentered! Translation: (%.2f,%.2f,%.2f)",Pshift.x,Pshift.y,Pshift.z);
}
}
//shifted point
CCVector3 P = CCVector3::fromArray((Pd + Pshift).u);
vertices->addPoint(P);
++pointsRead;
}
/*** new vertex texture coordinates ***/
else if (tokens.front() == "vt")
{
//create and reserve memory for tex. coords container if necessary
if (!texCoords)
{
texCoords = new TextureCoordsContainer();
texCoords->link();
}
if (texCoords->currentSize() == texCoords->capacity())
{
if (!texCoords->reserve(texCoords->capacity() + MAX_NUMBER_OF_ELEMENTS_PER_CHUNK))
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
}
//malformed line?
if (tokens.size() < 2)
{
objWarnings[INVALID_LINE] = true;
error = true;
break;
}
float T[2] = { T[0] = tokens[1].toFloat(), 0 };
if (tokens.size() > 2) //OBJ specification allows for only one value!!!
{
T[1] = tokens[2].toFloat();
}
texCoords->addElement(T);
++texCoordsRead;
}
/*** new vertex normal ***/
else if (tokens.front() == "vn") //--> in fact it can also be a facet normal!!!
{
//create and reserve memory for normals container if necessary
if (!normals)
{
normals = new NormsIndexesTableType;
normals->link();
}
if (normals->currentSize() == normals->capacity())
{
if (!normals->reserve(normals->capacity() + MAX_NUMBER_OF_ELEMENTS_PER_CHUNK))
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
}
//malformed line?
if (tokens.size() < 4)
{
objWarnings[INVALID_LINE] = true;
error = true;
break;
}
CCVector3 N(static_cast<PointCoordinateType>(tokens[1].toDouble()),
static_cast<PointCoordinateType>(tokens[2].toDouble()),
static_cast<PointCoordinateType>(tokens[3].toDouble()));
if (fabs(N.norm2() - 1.0) > 0.005)
{
objWarnings[INVALID_NORMALS] = true;
N.normalize();
}
CompressedNormType nIndex = ccNormalVectors::GetNormIndex(N.u);
normals->addElement(nIndex); //we don't know yet if it's per-vertex or per-triangle normal...
++normsRead;
}
/*** new group ***/
else if (tokens.front() == "g" || tokens.front() == "o")
{
//update new group index
facesRead = 0;
//get the group name
QString groupName = (tokens.size() > 1 && !tokens[1].isEmpty() ? tokens[1] : "default");
for (int i=2; i<tokens.size(); ++i) //multiple parts?
groupName.append(QString(" ")+tokens[i]);
//push previous group descriptor (if none was pushed)
if (groups.empty() && totalFacesRead > 0)
groups.push_back(std::pair<unsigned,QString>(0,"default"));
//push new group descriptor
if (!groups.empty() && groups.back().first == totalFacesRead)
groups.back().second = groupName; //simply replace the group name if the previous group was empty!
else
groups.push_back(std::pair<unsigned,QString>(totalFacesRead,groupName));
polyCount = 0; //restart polyline count at 0!
}
/*** new face ***/
else if (tokens.front().startsWith('f'))
{
//malformed line?
if (tokens.size() < 4)
{
objWarnings[INVALID_LINE] = true;
currentLine = stream.readLine();
continue;
//error = true;
//break;
}
//read the face elements (singleton, pair or triplet)
std::vector<facetElement> currentFace;
{
for (int i=1; i<tokens.size(); ++i)
{
QStringList vertexTokens = tokens[i].split('/');
if (vertexTokens.size() == 0 || vertexTokens[0].isEmpty())
{
objWarnings[INVALID_LINE] = true;
error = true;
break;
}
else
{
//new vertex
facetElement fe; //(0,0,0) by default
fe.vIndex = vertexTokens[0].toInt();
if (vertexTokens.size() > 1 && !vertexTokens[1].isEmpty())
fe.tcIndex = vertexTokens[1].toInt();
if (vertexTokens.size() > 2 && !vertexTokens[2].isEmpty())
fe.nIndex = vertexTokens[2].toInt();
currentFace.push_back(fe);
}
}
}
if (error)
break;
if (currentFace.size() < 3)
{
ccLog::Warning("[OBJ] Malformed file: polygon on line %1 has less than 3 vertices!",lineCount);
error = true;
break;
}
//first vertex
std::vector<facetElement>::iterator A = currentFace.begin();
//the very first vertex of the group tells us about the whole sequence
if (facesRead == 0)
{
//we have a tex. coord index as second vertex element!
if (!hasTexCoords && A->tcIndex != 0 && !materialsLoadFailed)
{
if (!baseMesh->reservePerTriangleTexCoordIndexes())
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
for (unsigned int i=0; i<totalFacesRead; ++i)
baseMesh->addTriangleTexCoordIndexes(-1, -1, -1);
hasTexCoords = true;
}
//we have a normal index as third vertex element!
if (!normalsPerFacet && A->nIndex != 0)
{
//so the normals are 'per-facet'
if (!baseMesh->reservePerTriangleNormalIndexes())
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
for (unsigned int i=0; i<totalFacesRead; ++i)
baseMesh->addTriangleNormalIndexes(-1, -1, -1);
normalsPerFacet = true;
}
}
//we process all vertices accordingly
for (std::vector<facetElement>::iterator it = currentFace.begin() ; it!=currentFace.end(); ++it)
{
facetElement& vertex = *it;
//vertex index
{
if (!vertex.updatePointIndex(pointsRead))
{
objWarnings[INVALID_INDEX] = true;
error = true;
break;
}
if (vertex.vIndex > maxVertexIndex)
maxVertexIndex = vertex.vIndex;
}
//should we have a tex. coord index as second vertex element?
if (hasTexCoords && currentMaterialDefined)
{
if (!vertex.updateTexCoordIndex(texCoordsRead))
{
objWarnings[INVALID_INDEX] = true;
error = true;
break;
}
if (vertex.tcIndex > maxTexCoordIndex)
maxTexCoordIndex = vertex.tcIndex;
}
//should we have a normal index as third vertex element?
if (normalsPerFacet)
{
if (!vertex.updateNormalIndex(normsRead))
{
objWarnings[INVALID_INDEX] = true;
error = true;
break;
}
if (vertex.nIndex > maxTriNormIndex)
maxTriNormIndex = vertex.nIndex;
}
}
//don't forget material (common for all vertices)
if (currentMaterialDefined && !materialsLoadFailed)
{
if (!hasMaterial)
{
if (!baseMesh->reservePerTriangleMtlIndexes())
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
for (unsigned int i=0; i<totalFacesRead; ++i)
baseMesh->addTriangleMtlIndex(-1);
hasMaterial = true;
}
}
if (error)
break;
//Now, let's tesselate the whole polygon
//FIXME: yeah, we do very ulgy tesselation here!
std::vector<facetElement>::const_iterator B = A+1;
std::vector<facetElement>::const_iterator C = B+1;
for ( ; C != currentFace.end(); ++B,++C)
{
//need more space?
if (baseMesh->size() == baseMesh->capacity())
{
if (!baseMesh->reserve(baseMesh->size()+128))
{
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
break;
}
}
//push new triangle
baseMesh->addTriangle(A->vIndex, B->vIndex, C->vIndex);
++facesRead;
++totalFacesRead;
if (hasMaterial)
baseMesh->addTriangleMtlIndex(currentMaterial);
if (hasTexCoords)
baseMesh->addTriangleTexCoordIndexes(A->tcIndex, B->tcIndex, C->tcIndex);
if (normalsPerFacet)
baseMesh->addTriangleNormalIndexes(A->nIndex, B->nIndex, C->nIndex);
}
}
/*** polyline ***/
else if (tokens.front().startsWith('l'))
{
//malformed line?
if (tokens.size() < 3)
{
objWarnings[INVALID_LINE] = true;
currentLine = stream.readLine();
continue;
}
//read the face elements (singleton, pair or triplet)
ccPolyline* polyline = new ccPolyline(vertices);
if (!polyline->reserve(static_cast<unsigned>(tokens.size()-1)))
{
//not enough memory
objWarnings[NOT_ENOUGH_MEMORY] = true;
delete polyline;
polyline = 0;
currentLine = stream.readLine();
continue;
}
for (int i=1; i<tokens.size(); ++i)
{
//get next polyline's vertex index
QStringList vertexTokens = tokens[i].split('/');
if (vertexTokens.size() == 0 || vertexTokens[0].isEmpty())
{
objWarnings[INVALID_LINE] = true;
error = true;
break;
}
else
{
int index = vertexTokens[0].toInt(); //we ignore normal index (if any!)
if (!UpdatePointIndex(index,pointsRead))
{
objWarnings[INVALID_INDEX] = true;
error = true;
break;
}
polyline->addPointIndex(index);
}
}
if (error)
{
delete polyline;
polyline = 0;
break;
}
polyline->setVisible(true);
QString name = groups.empty() ? QString("Line") : groups.back().second+QString(".line");
polyline->setName(QString("%1 %2").arg(name).arg(++polyCount));
vertices->addChild(polyline);
}
/*** material ***/
else if (tokens.front() == "usemtl") //see 'MTL file' below
{
if (materials) //otherwise we have failed to load MTL file!!!
{
QString mtlName = currentLine.mid(7).trimmed();
//DGM: in case there's space characters in the material name, we must read it again from the original line buffer
//QString mtlName = (tokens.size() > 1 && !tokens[1].isEmpty() ? tokens[1] : "");
currentMaterial = (!mtlName.isEmpty() ? materials->findMaterialByName(mtlName) : -1);
currentMaterialDefined = true;
}
}
/*** material file (MTL) ***/
else if (tokens.front() == "mtllib")
{
//malformed line?
if (tokens.size() < 2 || tokens[1].isEmpty())
{
objWarnings[INVALID_LINE] = true;
}
else
{
//we build the whole MTL filename + path
//DGM: in case there's space characters in the filename, we must read it again from the original line buffer
//QString mtlFilename = tokens[1];
QString mtlFilename = currentLine.mid(7).trimmed();
ccLog::Print(QString("[OBJ] Material file: ")+mtlFilename);
QString mtlPath = QFileInfo(filename).canonicalPath();
//we try to load it
if (!materials)
{
materials = new ccMaterialSet("materials");
materials->link();
}
size_t oldSize = materials->size();
QStringList errors;
if (ccMaterialSet::ParseMTL(mtlPath,mtlFilename,*materials,errors))
{
ccLog::Print("[OBJ] %i materials loaded",materials->size()-oldSize);
materialsLoadFailed = false;
}
else
{
ccLog::Error(QString("[OBJ] Failed to load material file! (should be in '%1')").arg(mtlPath+'/'+QString(mtlFilename)));
materialsLoadFailed = true;
}
if (!errors.empty())
{
for (int i=0; i<errors.size(); ++i)
ccLog::Warning(QString("[OBJ::Load::MTL parser] ")+errors[i]);
}
if (materials->empty())
{
materials->release();
materials=0;
materialsLoadFailed = true;
}
}
}
///*** shading group ***/
//else if (tokens.front() == "s")
//{
// //ignored!
//}
if (error)
break;
currentLine = stream.readLine();
}
}
catch (const std::bad_alloc&)
{
//not enough memory
objWarnings[NOT_ENOUGH_MEMORY] = true;
error = true;
}
file.close();
//1st check
if (!error && pointsRead == 0)
{
//of course if there's no vertex, that's the end of the story ...
ccLog::Warning("[OBJ] Malformed file: no vertex in file!");
error = true;
}
if (!error)
{
ccLog::Print("[OBJ] %i points, %u faces",pointsRead,totalFacesRead);
if (texCoordsRead > 0 || normsRead > 0)
ccLog::Print("[OBJ] %i tex. coords, %i normals",texCoordsRead,normsRead);
//do some cleaning
vertices->shrinkToFit();
if (normals)
normals->shrinkToFit();
if (texCoords)
texCoords->shrinkToFit();
if (baseMesh->size() == 0)
{
delete baseMesh;
baseMesh = 0;
}
else
{
baseMesh->shrinkToFit();
}
if ( maxVertexIndex >= pointsRead
|| maxTexCoordIndex >= texCoordsRead
|| maxTriNormIndex >= normsRead)
{
//hum, we've got a problem here
ccLog::Warning("[OBJ] Malformed file: indexes go higher than the number of elements! (v=%i/tc=%i/n=%i)",maxVertexIndex,maxTexCoordIndex,maxTriNormIndex);
if (maxVertexIndex >= pointsRead)
{
error = true;
}
else
{
objWarnings[INVALID_INDEX] = true;
if (maxTexCoordIndex >= texCoordsRead)
{
texCoords->release();
texCoords = 0;
materials->release();
materials = 0;
}
if (maxTriNormIndex >= normsRead)
{
normals->release();
normals = 0;
}
}
}
if (!error && baseMesh)
{
if (normals && normalsPerFacet)
{
baseMesh->setTriNormsTable(normals);
baseMesh->showTriNorms(true);
}
if (materials)
{
baseMesh->setMaterialSet(materials);
baseMesh->showMaterials(true);
}
if (texCoords)
{
if (materials)
{
baseMesh->setTexCoordinatesTable(texCoords);
}
else
{
ccLog::Warning("[OBJ] Texture coordinates were defined but no material could be loaded!");
}
}
//normals: if the obj file doesn't provide any, should we compute them?
if (!normals)
{
//DGM: normals can be per-vertex or per-triangle so it's better to let the user do it himself later
//Moreover it's not always good idea if the user doesn't want normals (especially in ccViewer!)
//if (!materials && !baseMesh->hasColors()) //yes if no material is available!
//{
// ccLog::Print("[OBJ] Mesh has no normal! We will compute them automatically");
// baseMesh->computeNormals();
// baseMesh->showNormals(true);
//}
//else
{
ccLog::Warning("[OBJ] Mesh has no normal! You can manually compute them (select it then call \"Edit > Normals > Compute\")");
}
}
//create sub-meshes if necessary
ccLog::Print("[OBJ] 1 mesh loaded - %i group(s)", groups.size());
if (groups.size() > 1)
{
for (size_t i=0; i<groups.size(); ++i)
{
const QString& groupName = groups[i].second;
unsigned startIndex = groups[i].first;
unsigned endIndex = (i+1 == groups.size() ? baseMesh->size() : groups[i+1].first);
if (startIndex == endIndex)
{
continue;
}
ccSubMesh* subTri = new ccSubMesh(baseMesh);
if (subTri->reserve(endIndex-startIndex))
{
subTri->addTriangleIndex(startIndex,endIndex);
subTri->setName(groupName);
subTri->showMaterials(baseMesh->materialsShown());
subTri->showNormals(baseMesh->normalsShown());
subTri->showTriNorms(baseMesh->triNormsShown());
//subTri->showColors(baseMesh->colorsShown());
//subTri->showWired(baseMesh->isShownAsWire());
baseMesh->addChild(subTri);
}
else
{
delete subTri;
subTri = 0;
objWarnings[NOT_ENOUGH_MEMORY] = true;
}
}
baseMesh->setVisible(false);
vertices->setLocked(true);
}
baseMesh->addChild(vertices);
//DGM: we can't deactive the vertices if it has children! (such as polyline)
if (vertices->getChildrenNumber() != 0)
vertices->setVisible(false);
else
vertices->setEnabled(false);
container.addChild(baseMesh);
}
if (!baseMesh && vertices->size() != 0)
{
//no (valid) mesh!
container.addChild(vertices);
//we hide the vertices if the entity has children (probably polylines!)
if (vertices->getChildrenNumber() != 0)
{
vertices->setVisible(false);
}
}
//special case: normals held by cloud!
if (normals && !normalsPerFacet)
{
if (normsRead == pointsRead) //must be 'per-vertex' normals
{
vertices->setNormsTable(normals);
if (baseMesh)
baseMesh->showNormals(true);
}
else
{
ccLog::Warning("File contains normals which seem to be neither per-vertex nor per-face!!! We had to ignore them...");
}
}
}
if (error)
{
if (baseMesh)
delete baseMesh;
if (vertices)
delete vertices;
}
//release shared structures
if (normals)
{
normals->release();
normals = 0;
}
if (texCoords)
{
texCoords->release();
texCoords = 0;
}
if (materials)
{
materials->release();
materials = 0;
}
pDlg.close();
//potential warnings
if (objWarnings[INVALID_NORMALS])
ccLog::Warning("[OBJ] Some normals in file were invalid. You should re-compute them (select entity, then \"Edit > Normals > Compute\")");
if (objWarnings[INVALID_INDEX])
ccLog::Warning("[OBJ] File is malformed! Check indexes...");
if (objWarnings[NOT_ENOUGH_MEMORY])
ccLog::Warning("[OBJ] Not enough memory!");
if (objWarnings[INVALID_LINE])
ccLog::Warning("[OBJ] File is malformed! Missing data.");
if (error)
{
if (objWarnings[NOT_ENOUGH_MEMORY])
return CC_FERR_NOT_ENOUGH_MEMORY;
else if (objWarnings[CANCELLED_BY_USER])
return CC_FERR_CANCELED_BY_USER;
else
return CC_FERR_MALFORMED_FILE;
}
else
{
return CC_FERR_NO_ERROR;
}
}
bool ccFacet::createInternalRepresentation( CCLib::GenericIndexedCloudPersist* points,
const PointCoordinateType* planeEquation/*=0*/)
{
assert(points);
if (!points)
return false;
unsigned ptsCount = points->size();
if (ptsCount < 3)
return false;
CCLib::Neighbourhood Yk(points);
//get corresponding plane
if (!planeEquation)
{
planeEquation = Yk.getLSPlane();
if (!planeEquation)
{
ccLog::Warning("[ccFacet::createInternalRepresentation] Failed to compute the LS plane passing through the input points!");
return false;
}
}
memcpy(m_planeEquation, planeEquation, sizeof(PointCoordinateType) * 4);
//we project the input points on a plane
std::vector<CCLib::PointProjectionTools::IndexedCCVector2> points2D;
CCVector3 X, Y; //local base
if (!Yk.projectPointsOn2DPlane<CCLib::PointProjectionTools::IndexedCCVector2>(points2D, nullptr, &m_center, &X, &Y))
{
ccLog::Error("[ccFacet::createInternalRepresentation] Not enough memory!");
return false;
}
//compute resulting RMS
m_rms = CCLib::DistanceComputationTools::computeCloud2PlaneDistanceRMS(points, m_planeEquation);
//update the points indexes (not done by Neighbourhood::projectPointsOn2DPlane)
{
for (unsigned i = 0; i < ptsCount; ++i)
{
points2D[i].index = i;
}
}
//try to get the points on the convex/concave hull to build the contour and the polygon
{
std::list<CCLib::PointProjectionTools::IndexedCCVector2*> hullPoints;
if (!CCLib::PointProjectionTools::extractConcaveHull2D( points2D,
hullPoints,
m_maxEdgeLength*m_maxEdgeLength))
{
ccLog::Error("[ccFacet::createInternalRepresentation] Failed to compute the convex hull of the input points!");
}
unsigned hullPtsCount = static_cast<unsigned>(hullPoints.size());
//create vertices
m_contourVertices = new ccPointCloud();
{
if (!m_contourVertices->reserve(hullPtsCount))
{
delete m_contourVertices;
m_contourVertices = nullptr;
ccLog::Error("[ccFacet::createInternalRepresentation] Not enough memory!");
return false;
}
//projection on the LS plane (in 3D)
for (std::list<CCLib::PointProjectionTools::IndexedCCVector2*>::const_iterator it = hullPoints.begin(); it != hullPoints.end(); ++it)
{
m_contourVertices->addPoint(m_center + X*(*it)->x + Y*(*it)->y);
}
m_contourVertices->setName(DEFAULT_CONTOUR_POINTS_NAME);
m_contourVertices->setLocked(true);
m_contourVertices->setEnabled(false);
addChild(m_contourVertices);
}
//we create the corresponding (3D) polyline
{
m_contourPolyline = new ccPolyline(m_contourVertices);
if (m_contourPolyline->reserve(hullPtsCount))
{
m_contourPolyline->addPointIndex(0, hullPtsCount);
m_contourPolyline->setClosed(true);
m_contourPolyline->setVisible(true);
m_contourPolyline->setLocked(true);
m_contourPolyline->setName(DEFAULT_CONTOUR_NAME);
m_contourVertices->addChild(m_contourPolyline);
m_contourVertices->setEnabled(true);
m_contourVertices->setVisible(false);
}
else
{
delete m_contourPolyline;
m_contourPolyline = nullptr;
ccLog::Warning("[ccFacet::createInternalRepresentation] Not enough memory to create the contour polyline!");
}
}
//we create the corresponding (2D) mesh
std::vector<CCVector2> hullPointsVector;
try
{
hullPointsVector.reserve(hullPoints.size());
for (std::list<CCLib::PointProjectionTools::IndexedCCVector2*>::const_iterator it = hullPoints.begin(); it != hullPoints.end(); ++it)
{
hullPointsVector.push_back(**it);
}
}
catch (...)
{
ccLog::Warning("[ccFacet::createInternalRepresentation] Not enough memory to create the contour mesh!");
}
//if we have computed a concave hull, we must remove triangles falling outside!
bool removePointsOutsideHull = (m_maxEdgeLength > 0);
if (!hullPointsVector.empty() && CCLib::Delaunay2dMesh::Available())
{
//compute the facet surface
CCLib::Delaunay2dMesh dm;
char errorStr[1024];
if (dm.buildMesh(hullPointsVector, 0, errorStr))
{
if (removePointsOutsideHull)
dm.removeOuterTriangles(hullPointsVector, hullPointsVector);
unsigned triCount = dm.size();
assert(triCount != 0);
m_polygonMesh = new ccMesh(m_contourVertices);
if (m_polygonMesh->reserve(triCount))
{
//import faces
for (unsigned i = 0; i < triCount; ++i)
{
const CCLib::VerticesIndexes* tsi = dm.getTriangleVertIndexes(i);
m_polygonMesh->addTriangle(tsi->i1, tsi->i2, tsi->i3);
}
m_polygonMesh->setVisible(true);
m_polygonMesh->enableStippling(true);
//unique normal for facets
if (m_polygonMesh->reservePerTriangleNormalIndexes())
{
NormsIndexesTableType* normsTable = new NormsIndexesTableType();
normsTable->reserve(1);
CCVector3 N(m_planeEquation);
normsTable->addElement(ccNormalVectors::GetNormIndex(N.u));
m_polygonMesh->setTriNormsTable(normsTable);
for (unsigned i = 0; i < triCount; ++i)
m_polygonMesh->addTriangleNormalIndexes(0, 0, 0); //all triangles will have the same normal!
m_polygonMesh->showNormals(true);
m_polygonMesh->setLocked(true);
m_polygonMesh->setName(DEFAULT_POLYGON_MESH_NAME);
m_contourVertices->addChild(m_polygonMesh);
m_contourVertices->setEnabled(true);
m_contourVertices->setVisible(false);
}
else
{
ccLog::Warning("[ccFacet::createInternalRepresentation] Not enough memory to create the polygon mesh's normals!");
}
//update facet surface
m_surface = CCLib::MeshSamplingTools::computeMeshArea(m_polygonMesh);
}
else
{
delete m_polygonMesh;
m_polygonMesh = nullptr;
ccLog::Warning("[ccFacet::createInternalRepresentation] Not enough memory to create the polygon mesh!");
}
}
else
{
ccLog::Warning(QString("[ccFacet::createInternalRepresentation] Failed to create the polygon mesh (third party lib. said '%1'").arg(errorStr));
}
}
}
return true;
}
virtual void add3dFace(const DL_3dFaceData& face)
{
//TODO: understand what this really is?!
CCVector3 P[4];
for (unsigned i=0; i<4; ++i)
{
P[i] = CCVector3( static_cast<PointCoordinateType>(face.x[i]),
static_cast<PointCoordinateType>(face.y[i]),
static_cast<PointCoordinateType>(face.z[i]) );
}
//create the 'faces' mesh if necessary
if (!m_faces)
{
ccPointCloud* vertices = new ccPointCloud("vertices");
m_faces = new ccMesh(vertices);
m_faces->setName("Faces");
m_faces->addChild(vertices);
m_faces->setVisible(true);
vertices->setEnabled(false);
vertices->setLocked(true);
m_root->addChild(m_faces);
}
ccPointCloud* vertices = dynamic_cast<ccPointCloud*>(m_faces->getAssociatedCloud());
if (!vertices)
{
assert(false);
return;
}
int vertIndexes[4] = {-1, -1, -1, -1};
unsigned addedVertCount = 4;
//check if the two last vertices are the same
if (P[2].x == P[3].x && P[2].y == P[3].y && P[2].z == P[3].z)
addedVertCount = 3;
//current face color
colorType col[3];
colorType* faceCol = 0;
if (getCurrentColour(col))
faceCol = col;
//look for already defined vertices
unsigned vertCount = vertices->size();
if (vertCount)
{
//DGM TODO: could we be smarter?
for (unsigned i=0; i<addedVertCount; ++i)
{
for (unsigned j=0; j<vertCount; ++j)
{
const CCVector3* Pj = vertices->getPoint(j);
if (P[i].x == Pj->x && P[i].y == Pj->y && P[i].z == Pj->z)
{
bool useCurrentVertex = true;
//We must also check that the color is the same (if any)
if (faceCol || vertices->hasColors())
{
const colorType* _faceCol = faceCol ? faceCol : ccColor::white;
const colorType* _vertCol = vertices->hasColors() ? vertices->getPointColor(j) : ccColor::white;
useCurrentVertex = (_faceCol[0] == _vertCol[0] && _faceCol[1] == _vertCol[1] && _faceCol[2] == _vertCol[2]);
}
if (useCurrentVertex)
{
vertIndexes[i] = static_cast<int>(j);
break;
}
}
}
}
}
//now create new vertices
unsigned createdVertCount = 0;
{
for (unsigned i=0; i<addedVertCount; ++i)
if (vertIndexes[i] < 0)
++createdVertCount;
}
if (createdVertCount != 0)
{
//reserve memory for the new vertices
if (!vertices->reserve(vertCount+createdVertCount))
{
ccLog::Error("[DxfImporter] Not enough memory!");
return;
}
for (unsigned i=0; i<addedVertCount; ++i)
{
if (vertIndexes[i] < 0)
{
vertIndexes[i] = static_cast<int>(vertCount++);
vertices->addPoint(P[i]);
}
}
}
//number of triangles to add
unsigned addTriCount = (addedVertCount == 3 ? 1 : 2);
//now add the corresponding face(s)
if (!m_faces->reserve(m_faces->size() + addTriCount))
{
ccLog::Error("[DxfImporter] Not enough memory!");
return;
}
m_faces->addTriangle(vertIndexes[0], vertIndexes[1], vertIndexes[2]);
if (addedVertCount == 4)
m_faces->addTriangle(vertIndexes[0], vertIndexes[2], vertIndexes[3]);
//add per-triangle normals
{
//normals table
NormsIndexesTableType* triNormsTable = m_faces->getTriNormsTable();
bool firstTime = false;
if (!triNormsTable)
{
triNormsTable = new NormsIndexesTableType();
m_faces->setTriNormsTable(triNormsTable);
m_faces->addChild(triNormsTable);
firstTime = true;
}
//add 1 or 2 new entries
unsigned triNormCount = triNormsTable->currentSize();
if (!triNormsTable->reserve(triNormsTable->currentSize() + addTriCount))
{
ccLog::Error("[DxfImporter] Not enough memory!");
return;
}
CCVector3 N = (P[1]-P[0]).cross(P[2]-P[0]);
N.normalize();
triNormsTable->addElement(ccNormalVectors::GetNormIndex(N.u));
if (addTriCount == 2)
{
N = (P[2]-P[0]).cross(P[3]-P[0]);
N.normalize();
triNormsTable->addElement(ccNormalVectors::GetNormIndex(N.u));
}
//per-triangle normals indexes
if (firstTime)
{
if (!m_faces->reservePerTriangleNormalIndexes())
{
ccLog::Error("[DxfImporter] Not enough memory!");
return;
}
m_faces->showNormals(true);
}
int n1 = static_cast<int>(triNormCount);
m_faces->addTriangleNormalIndexes(n1, n1, n1);
if (addTriCount == 2)
{
int n2 = static_cast<int>(triNormCount+1);
m_faces->addTriangleNormalIndexes(n2, n2, n2);
}
}
//and now for the color
if (faceCol)
{
//RGB field already instantiated?
if (vertices->hasColors())
{
for (unsigned i=0; i<createdVertCount; ++i)
vertices->addRGBColor(faceCol);
}
//otherwise, reserve memory and set all previous points to white by default
else if (vertices->setRGBColor(ccColor::white))
{
//then replace the last color(s) by the current one
for (unsigned i=0; i<createdVertCount; ++i)
vertices->setPointColor(vertCount-1-i,faceCol);
m_faces->showColors(true);
}
}
else if (vertices->hasColors())
{
//add default color if none is defined!
for (unsigned i=0; i<createdVertCount; ++i)
vertices->addRGBColor(ccColor::white);
}
}