/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2008 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#ifndef __VCGLIB_IMPORTERDAE
#define __VCGLIB_IMPORTERDAE
//importer for collada's files
#include <wrap/dae/util_dae.h>
#include <wrap/dae/poly_triangulator.h>
// uncomment one of the following line to enable the Verbose debugging for the parsing
//#define QDEBUG if(1) ; else {assert(0);}
#define QDEBUG qDebug
namespace vcg {
namespace tri {
namespace io {
template<typename OpenMeshType>
class ImporterDAE : public UtilDAE
{
public:
class ColladaFace;
class ColladaVertex;
class ColladaTypes: public vcg::UsedTypes < vcg::Use<ColladaVertex>::template AsVertexType,
vcg::Use<ColladaFace >::template AsFaceType >{};
class ColladaVertex : public vcg::Vertex< ColladaTypes,
vcg::vertex::Coord3f, /* 12b */
vcg::vertex::BitFlags, /* 4b */
vcg::vertex::Normal3f, /* 12b */
vcg::vertex::Color4b /* 4b */
> {};
class ColladaFace : public vcg::Face< ColladaTypes,
vcg::face::VertexRef, /*12b */
vcg::face::BitFlags, /* 4b */
vcg::face::Normal3f, /*12b */
vcg::face::Color4b, /* 0b */
vcg::face::WedgeTexCoord2f /* 0b */
> {};
class ColladaMesh : public vcg::tri::TriMesh< std::vector<ColladaVertex>, std::vector<ColladaFace> > {};
private:
static int WedgeNormalAttribute(ColladaMesh& m,const QStringList face,const QStringList wn,const QDomNode wnsrc,const int meshfaceind,const int faceind,const int component)
{
int indnm = -1;
if (!wnsrc.isNull())
{
indnm = face.at(faceind).toInt();
assert(indnm * 3 < wn.size());
m.face[meshfaceind].WN(component) = vcg::Point3f(wn.at(indnm * 3).toFloat(),wn.at(indnm * 3 + 1).toFloat(),wn.at(indnm * 3 + 2).toFloat());
}
return indnm;
}
static int WedgeTextureAttribute(ColladaMesh& m,const QStringList face,int ind_txt,const QStringList wt,const QDomNode wtsrc,const int meshfaceind,const int faceind,const int component,const int stride = 2)
{
int indtx = -1;
if (!wtsrc.isNull())
{
indtx = face.at(faceind).toInt();
//int num = wt.size();
assert(indtx * stride < wt.size());
m.face[meshfaceind].WT(component) = vcg::TexCoord2<float>();
m.face[meshfaceind].WT(component).U() = wt.at(indtx * stride).toFloat();
m.face[meshfaceind].WT(component).V() = wt.at(indtx * stride + 1).toFloat();
m.face[meshfaceind].WT(component).N() = ind_txt;
}
return indtx;
}
// this one is used for the polylist nodes
static int WedgeTextureAttribute(typename ColladaMesh::FaceType::TexCoordType & WT, const QStringList faceIndexList, int ind_txt, const QStringList wt, const QDomNode wtsrc,const int faceind,const int stride = 2)
{
int indtx = -1;
if (!wtsrc.isNull())
{
indtx = faceIndexList.at(faceind).toInt();
//int num = wt.size();
assert(indtx * stride < wt.size());
WT = vcg::TexCoord2<float>();
WT.U() = wt.at(indtx * stride).toFloat();
WT.V() = wt.at(indtx * stride + 1).toFloat();
WT.N() = ind_txt;
}
return indtx;
}
static int VertexColorAttribute(ColladaMesh& m,const QStringList face,const QStringList wc,const QDomNode wcsrc,const int faceind, const int vertind,const int colorcomponent)
{
int indcl = -1;
if (!wcsrc.isNull())
{
indcl = face.at(faceind).toInt();
assert((colorcomponent == 4) || (colorcomponent == 3));
assert(indcl * colorcomponent < wc.size());
vcg::Color4b c;
if (colorcomponent == 3)
c[3] = 255;
for(unsigned int ii = 0;ii < colorcomponent;++ii)
c[ii] = (unsigned char)(wc.at(indcl * colorcomponent + ii).toFloat()*255.0);
m.vert[vertind].C() = c;
}
return indcl;
}
static void FindStandardWedgeAttributes(WedgeAttribute& wed,const QDomNode nd,const QDomDocument doc)
{
wed.wnsrc = findNodeBySpecificAttributeValue(nd,"input","semantic","NORMAL");
wed.offnm = findStringListAttribute(wed.wn,wed.wnsrc,nd,doc,"NORMAL");
wed.wtsrc = findNodeBySpecificAttributeValue(nd,"input","semantic","TEXCOORD");
if (!wed.wtsrc.isNull())
{
QDomNode src = attributeSourcePerSimplex(nd,doc,"TEXCOORD");
if (isThereTag(src,"accessor"))
{
QDomNodeList wedatts = src.toElement().elementsByTagName("accessor");
wed.stridetx = wedatts.at(0).toElement().attribute("stride").toInt();
}
else
wed.stridetx = 2;
}
//else
// wed.stridetx = 2;
wed.offtx = findStringListAttribute(wed.wt,wed.wtsrc,nd,doc,"TEXCOORD");
wed.wcsrc = findNodeBySpecificAttributeValue(nd,"input","semantic","COLOR");
if (!wed.wcsrc.isNull())
{
QDomNode src = attributeSourcePerSimplex(nd,doc,"COLOR");
if (isThereTag(src,"accessor"))
{
QDomNodeList wedatts = src.toElement().elementsByTagName("accessor");
wed.stridecl = wedatts.at(0).toElement().attribute("stride").toInt();
}
else
wed.stridecl = 3;
}
/*else
wed.stridecl = 3;*/
wed.offcl = findStringListAttribute(wed.wc,wed.wcsrc,nd,doc,"COLOR");
}
static DAEError LoadPolygonalMesh(QDomNodeList& polypatch,ColladaMesh& m,const size_t offset,InfoDAE & info)
{
return E_NOERROR;
}
static DAEError LoadPolygonalListMesh(QDomNodeList& polylist,ColladaMesh& m,const size_t offset,InfoDAE& info,QMap<QString,QString> &materialBinding)
{
if(polylist.isEmpty()) return E_NOERROR;
QDEBUG("****** LoadPolygonalListMesh (initial mesh size %i %i)",m.vert.size(),m.fn);
for(int tript = 0; tript < polylist.size();++tript)
{
QString materialId = polylist.at(tript).toElement().attribute(QString("material"));
QDEBUG("****** material id '%s' -> '%s'",qPrintable(materialId),qPrintable(materialBinding[materialId]));
QString textureFilename;
QDomNode img_node = textureFinder(materialBinding[materialId],textureFilename,*(info.doc));
if(img_node.isNull())
{
QDEBUG("****** but we were not able to find the corresponding image node");
}
int ind_txt = -1;
if (!img_node.isNull())
{
if(info.textureIdMap.contains(textureFilename))
ind_txt=info.textureIdMap[textureFilename];
else
{
QDEBUG("Found use of Texture %s, adding it to texutres",qPrintable(textureFilename));
// Note that sometimes (in collada) the texture names could have been encoded with a url-like style (e.g. replacing spaces with '%20') so making some other attempt could be harmless
QString ConvertedName = textureFilename.replace(QString("%20"), QString(" "));
info.textureIdMap[textureFilename]=m.textures.size();
m.textures.push_back(qPrintable(ConvertedName));
ind_txt=info.textureIdMap[textureFilename];
}
}
// number of the attributes associated to each vertex of a face (vert, normal, tex etc)
int faceAttributeNum = polylist.at(tript).toElement().elementsByTagName("input").size();
// the list of indexes composing the size of each polygon.
// The size of this list is the number of the polygons.
QStringList faceSizeList;
valueStringList(faceSizeList,polylist.at(tript),"vcount");
// The long list of indexes composing the various polygons.
// for each polygon there are numvert*numattrib indexes.
QStringList faceIndexList;
valueStringList(faceIndexList,polylist.at(tript),"p");
//int offsetface = (int)m.face.size();
if (faceIndexList.size() != 0 && faceSizeList.size() != 0 )
{
WedgeAttribute wa;
FindStandardWedgeAttributes(wa,polylist.at(tript),*(info.doc));
QDEBUG("******* Start Reading faces. Attributes Offsets: offtx %i - offnm %i - offcl %i",wa.offtx,wa.offnm,wa.offcl);
int faceIndexCnt=0;
int jj = 0;
for(int ff = 0; ff < (int) faceSizeList.size();++ff) // for each polygon
{
int curFaceVertNum = faceSizeList.at(ff).toInt();
MyPolygon<typename ColladaMesh::VertexType> polyTemp(curFaceVertNum);
for(int tt = 0;tt < curFaceVertNum ;++tt) // for each vertex of the polygon
{
int indvt = faceIndexList.at(faceIndexCnt).toInt();
if(faceSizeList.size()<100) QDEBUG("******* Reading face[%3i].V(%i) = %4i (%i-th of the index list) (face has %i vertices)",ff,tt,indvt,faceIndexCnt,curFaceVertNum);
assert(indvt + offset < m.vert.size());
polyTemp._pv[tt] = &(m.vert[indvt + offset]);
faceIndexCnt +=faceAttributeNum;
WedgeTextureAttribute(polyTemp._txc[tt],faceIndexList,ind_txt, wa.wt ,wa.wtsrc, jj + wa.offtx,wa.stridetx);
/****************
if(tri::HasPerWedgeNormal(m)) WedgeNormalAttribute(m,face,wa.wn,wa.wnsrc,ff,jj + wa.offnm,tt);
if(tri::HasPerWedgeColor(m)) WedgeColorAttribute(m,face,wa.wc,wa.wcsrc,ff,jj + wa.offcl,tt);
if(tri::HasPerWedgeTexCoord(m) && ind_txt != -1)
{
WedgeTextureAttribute(m,face,ind_txt,wa.wt,wa.wtsrc,ff,jj + wa.offtx,tt,wa.stride);
}
****************/
jj += faceAttributeNum;
}
AddPolygonToMesh(polyTemp,m);
}
}
}
QDEBUG("****** LoadPolygonalListMesh (final mesh size vn %i vertsize %i - fn %i facesize %i)",m.vn,m.vert.size(),m.fn,m.face.size());
return E_NOERROR;
}
static DAEError AddPolygonToMesh(MyPolygon<typename ColladaMesh::VertexType> &polyTemp, ColladaMesh& m)
{
int vertNum=polyTemp._pv.size();
int triNum= vertNum -2;
typename ColladaMesh::FaceIterator fp=vcg::tri::Allocator<ColladaMesh>::AddFaces(m,triNum);
// Very simple fan triangulation of the polygon.
for(int i=0;i<triNum;++i)
{
assert(fp!=m.face.end());
(*fp).V(0)=polyTemp._pv[0];
(*fp).WT(0)=polyTemp._txc[0];
(*fp).V(1) =polyTemp._pv [i+1];
(*fp).WT(1)=polyTemp._txc[i+1];
(*fp).V(2) =polyTemp._pv[i+2];
(*fp).WT(2)=polyTemp._txc[i+2];
++fp;
}
assert(fp==m.face.end());
return E_NOERROR;
}
static DAEError OldLoadPolygonalListMesh(QDomNodeList& polylist,ColladaMesh& m,const size_t offset,InfoDAE& info)
{
typedef PolygonalMesh< MyPolygon<typename ColladaMesh::VertexType> > PolyMesh;
PolyMesh pm;
//copying vertices
for(typename ColladaMesh::VertexIterator itv = m.vert.begin();itv != m.vert.end();++itv)
{
vcg::Point3f p(itv->P().X(),itv->P().Y(),itv->P().Z());
typename PolyMesh::VertexType v;
v.P() = p;
pm.vert.push_back(v);
}
int polylist_size = polylist.size();
for(int pl = 0; pl < polylist_size;++pl)
{
QString mat = polylist.at(pl).toElement().attribute(QString("material"));
QString textureFilename;
QDomNode txt_node = textureFinder(mat,textureFilename,*(info.doc));
int ind_txt = -1;
if (!txt_node.isNull())
ind_txt = indexTextureByImgNode(*(info.doc),txt_node);
//PolyMesh::PERWEDGEATTRIBUTETYPE att = PolyMesh::NONE;
WedgeAttribute wa;
FindStandardWedgeAttributes(wa,polylist.at(pl),*(info.doc));
QStringList vertcount;
valueStringList(vertcount,polylist.at(pl),"vcount");
int indforpol = findOffSetForASingleSimplex(polylist.at(pl));
int offpols = 0;
int npolig = vertcount.size();
QStringList polyind;
valueStringList(polyind,polylist.at(pl),"p");
for(int ii = 0;ii < npolig;++ii)
{
int nvert = vertcount.at(ii).toInt();
typename PolyMesh::FaceType p(nvert);
for(int iv = 0;iv < nvert;++iv)
{
int index = offset + polyind.at(offpols + iv * indforpol).toInt();
p._pv[iv] = &(pm.vert[index]);
int nmindex = -1;
if (!wa.wnsrc.isNull())
nmindex = offset + polyind.at(offpols + iv * indforpol + wa.offnm).toInt();
int txindex = -1;
if (!wa.wtsrc.isNull())
{
txindex = offset + polyind.at(offpols + iv * indforpol + wa.offtx).toInt();
/*p._txc[iv].U() = wa.wt.at(txindex * 2).toFloat();
p._txc[iv].V() = wa.wt.at(txindex * 2 + 1).toFloat();
p._txc[iv].N() = ind_txt;*/
}
}
pm._pols.push_back(p);
offpols += nvert * indforpol;
}
}
pm.triangulate(m);
return E_NOERROR;
}
/*
Called to load into a given mesh
*/
static DAEError LoadTriangularMesh(QDomNodeList& triNodeList, ColladaMesh& m, const size_t offset, InfoDAE& info,QMap<QString,QString> &materialBinding)
{
if(triNodeList.isEmpty()) return E_NOERROR;
QDEBUG("****** LoadTriangularMesh (initial mesh size %i %i)",m.vn,m.fn);
for(int tript = 0; tript < triNodeList.size();++tript)
{
QString materialId = triNodeList.at(tript).toElement().attribute(QString("material"));
QDEBUG("****** material id '%s' -> '%s'",qPrintable(materialId),qPrintable(materialBinding[materialId]));
QString textureFilename;
QDomNode img_node = textureFinder(materialBinding[materialId],textureFilename,*(info.doc));
if(img_node.isNull())
{
QDEBUG("****** but we were not able to find the corresponding image node");
}
int ind_txt = -1;
if (!img_node.isNull())
{
if(info.textureIdMap.contains(textureFilename))
ind_txt=info.textureIdMap[textureFilename];
else
{
QDEBUG("Found use of Texture %s, adding it to texutres",qPrintable(textureFilename));
QString ConvertedName = textureFilename.replace(QString("%20"), QString(" "));
info.textureIdMap[textureFilename]=m.textures.size();
m.textures.push_back(qPrintable(ConvertedName));
ind_txt=info.textureIdMap[textureFilename];
}
// ind_txt = indexTextureByImgNode(*(info.doc),txt_node);
}
int faceAttributeNum = triNodeList.at(tript).toElement().elementsByTagName("input").size();
QStringList face;
valueStringList(face,triNodeList.at(tript),"p");
int offsetface = (int)m.face.size();
if (face.size() != 0)
{
vcg::tri::Allocator<ColladaMesh>::AddFaces(m,face.size() / (faceAttributeNum * 3));
WedgeAttribute wa;
FindStandardWedgeAttributes(wa,triNodeList.at(tript),*(info.doc));
int jj = 0;
for(int ff = offsetface;ff < (int) m.face.size();++ff)
{
for(unsigned int tt = 0;tt < 3;++tt)
{
int indvt = face.at(jj).toInt();
assert(indvt + offset < m.vert.size());
m.face[ff].V(tt) = &(m.vert[indvt + offset]);
if(tri::HasPerWedgeNormal(m))
WedgeNormalAttribute(m,face,wa.wn,wa.wnsrc,ff,jj + wa.offnm,tt);
if(tri::HasPerVertexColor(m))
{
VertexColorAttribute(m,face,wa.wc,wa.wcsrc,jj + wa.offcl,indvt + offset,wa.stridecl);
}
if(tri::HasPerWedgeTexCoord(m) && ind_txt != -1)
{
WedgeTextureAttribute(m,face,ind_txt,wa.wt,wa.wtsrc,ff,jj + wa.offtx,tt,wa.stridetx);
}
jj += faceAttributeNum;
}
if( ! ( (m.face[ff].V(0) != m.face[ff].V(1)) &&
(m.face[ff].V(0) != m.face[ff].V(2)) &&
(m.face[ff].V(1) != m.face[ff].V(2)) ) )
QDEBUG("********* WARNING face %i, (%i %i %i) is a DEGENERATE FACE!",ff, m.face[ff].V(0) - &m.vert.front(), m.face[ff].V(1) - &m.vert.front(), m.face[ff].V(2) - &m.vert.front());
}
}
}
QDEBUG("****** LoadTriangularMesh (final mesh size %i %i - %i %i)",m.vn,m.vert.size(),m.fn,m.face.size());
return E_NOERROR;
}
static int LoadControllerMesh(ColladaMesh& m, InfoDAE& info, const QDomElement& geo,QMap<QString, QString> materialBindingMap, CallBackPos *cb=0)
{
(void)cb;
assert(geo.tagName() == "controller");
QDomNodeList skinList = geo.toElement().elementsByTagName("skin");
if(skinList.size()!=1) return E_CANTOPEN;
QDomElement skinNode = skinList.at(0).toElement();
QString geomNode_url;
referenceToANodeAttribute(skinNode,"source",geomNode_url);
QDEBUG("Found a controller referencing a skin with url '%s'", qPrintable(geomNode_url));
QDomNode refNode = findNodeBySpecificAttributeValue(*(info.doc),"geometry","id",geomNode_url);
QDomNodeList bindingNodes = skinNode.toElement().elementsByTagName("bind_material");
if( bindingNodes.size()>0) {
QDEBUG("** skin node of a controller has a material binding");
GenerateMaterialBinding(skinNode,materialBindingMap);
}
return LoadGeometry(m, info, refNode.toElement(),materialBindingMap);
}
/* before instancing a geometry you can make a binding that allow you to substitute next material names with other names.
this is very useful for instancing the same geometry with different materials. therefore when you encounter a material name in a mesh, this name can be a 'symbol' that you have to bind.
*/
static bool GenerateMaterialBinding(QDomNode instanceGeomNode, QMap<QString,QString> &binding)
{
QDomNodeList instanceMaterialList=instanceGeomNode.toElement().elementsByTagName("instance_material");
QDEBUG("++++ Found %i instance_material binding",instanceMaterialList.size() );
for(int i=0;i<instanceMaterialList.size();++i)
{
QString symbol = instanceMaterialList.at(i).toElement().attribute("symbol");
QString target = instanceMaterialList.at(i).toElement().attribute("target");
binding[symbol]=target;
QDEBUG("++++++ %s -> %s",qPrintable(symbol),qPrintable(target));
}
return true;
}
/*
Basic function that get in input a node <geometry> with a map from material names to texture names.
this map is necessary because when using a geometry when it is instanced its material can be bind with different names.
if the map fails you should directly search in the material library.
*/
static int LoadGeometry(ColladaMesh& m, InfoDAE& info, const QDomElement& geo, QMap<QString,QString> &materialBinding, CallBackPos *cb=0)
{
assert(geo.tagName() == "geometry");
if (!isThereTag(geo,"mesh")) return E_NOMESH;
if ((cb !=NULL) && (((info.numvert + info.numface)%100)==0) && !(*cb)((100*(info.numvert + info.numface))/(info.numvert + info.numface), "Vertex Loading"))
return E_CANTOPEN;
QDEBUG("**** Loading a Geometry Mesh **** (initial mesh size %i %i)",m.vn,m.fn);
QDomNodeList vertices = geo.toElement().elementsByTagName("vertices");
if (vertices.size() != 1) return E_INCOMPATIBLECOLLADA141FORMAT;
QDomElement vertNode = vertices.at(0).toElement();
QDomNode positionNode = attributeSourcePerSimplex(vertNode,*(info.doc),"POSITION");
if (positionNode.isNull()) return E_NOVERTEXPOSITION;
QStringList geosrcposarr;
valueStringList(geosrcposarr, positionNode, "float_array");
int geosrcposarr_size = geosrcposarr.size();
if ((geosrcposarr_size % 3) != 0)
return E_CANTOPEN;
int nvert = geosrcposarr_size / 3;
size_t offset = m.vert.size();
if (geosrcposarr_size != 0)
{
vcg::tri::Allocator<ColladaMesh>::AddVertices(m,nvert);
QDomNode srcnodenorm = attributeSourcePerSimplex(vertices.at(0),*(info.doc),"NORMAL");
QStringList geosrcvertnorm;
if (!srcnodenorm.isNull())
valueStringList(geosrcvertnorm,srcnodenorm,"float_array");
QDomNode srcnodetext = attributeSourcePerSimplex(vertices.at(0),*(info.doc),"TEXCOORD");
QStringList geosrcverttext;
if (!srcnodetext.isNull())
valueStringList(geosrcverttext,srcnodetext,"float_array");
QDomNode srcnodecolor = attributeSourcePerSimplex(vertices.at(0),*(info.doc),"COLOR");
QDomNodeList accesslist = srcnodecolor.toElement().elementsByTagName("accessor");
QStringList geosrcvertcol;
if (!srcnodecolor.isNull())
valueStringList(geosrcvertcol,srcnodecolor,"float_array");
int ii = 0;
for(size_t vv = offset;vv < m.vert.size();++vv)
{
Point3f positionCoord(geosrcposarr[ii * 3].toFloat(),geosrcposarr[ii * 3 + 1].toFloat(),geosrcposarr[ii * 3 + 2].toFloat());
m.vert[vv].P() = positionCoord;
if (!srcnodenorm.isNull())
{
Point3f normalCoord(geosrcvertnorm[ii * 3].toFloat(),
geosrcvertnorm[ii * 3 + 1].toFloat(),
geosrcvertnorm[ii * 3 + 2].toFloat());
normalCoord.Normalize();
m.vert[vv].N() = normalCoord;
}
if (!srcnodecolor.isNull())
{
if (accesslist.size() > 0)
{
//component per color...obviously we assume they are RGB or RGBA if ARGB you get fancy effects....
if (accesslist.at(0).childNodes().size() == 4)
m.vert[vv].C() = vcg::Color4b(geosrcvertcol[ii * 4].toFloat()*255.0,geosrcvertcol[ii * 4 + 1].toFloat()*255.0,geosrcvertcol[ii * 4 + 2].toFloat()*255.0,geosrcvertcol[ii * 4 + 3].toFloat()*255.0);
else
if (accesslist.at(0).childNodes().size() == 3)
m.vert[vv].C() = vcg::Color4b(geosrcvertcol[ii * 3].toFloat()*255.0,geosrcvertcol[ii * 3 + 1].toFloat()*255.0,geosrcvertcol[ii * 3 + 2].toFloat()*255.0,255.0);
}
}
if (!srcnodetext.isNull())
{
assert((ii * 2 < geosrcverttext.size()) && (ii * 2 + 1 < geosrcverttext.size()));
m.vert[vv].T() = vcg::TexCoord2<float>();
m.vert[vv].T().u() = geosrcverttext[ii * 2].toFloat();
m.vert[vv].T().v() = geosrcverttext[ii * 2 + 1].toFloat();
}
++ii;
}
QDomNodeList tripatch = geo.toElement().elementsByTagName("triangles");
QDomNodeList polypatch = geo.toElement().elementsByTagName("polygons");
QDomNodeList polylist = geo.toElement().elementsByTagName("polylist");
QStringList vertcount;
valueStringList(vertcount,polylist.at(0),"vcount");
int isTri=true;
for (int i=0; i<vertcount.size(); i++)
{
if (vertcount[i]!="3")
{
isTri=false;
break;
}
}
if (isTri && tripatch.isEmpty())
tripatch=polylist;
if (tripatch.isEmpty() && polypatch.isEmpty() && polylist.isEmpty())
return E_NOPOLYGONALMESH;
DAEError err = E_NOERROR;
err = LoadTriangularMesh(tripatch,m,offset,info,materialBinding);
//err = LoadPolygonalMesh(polypatch,m,offset,info);
// err = OldLoadPolygonalListMesh(polylist,m,offset,info);
err = LoadPolygonalListMesh(polylist,m,offset,info,materialBinding);
if (err != E_NOERROR)
return err;
}
QDEBUG("**** Loading a Geometry Mesh **** (final mesh size %i %i - %i %i)",m.vn,m.vert.size(),m.fn,m.face.size());
return E_NOERROR;
}
static void GetTexCoord(const QDomDocument& doc, QStringList &texturefile)
{
QDomNodeList txlst = doc.elementsByTagName("library_images");
for(int img = 0;img < txlst.at(0).childNodes().size();++img)
{
QDomNodeList nlst = txlst.at(0).childNodes().at(img).toElement().elementsByTagName("init_from");
if (nlst.size() > 0)
{
texturefile.push_back( nlst.at(0).firstChild().nodeValue());
}
}
}
// This recursive function add to a mesh the subtree starting from the passed node.
// When you start from a visual_scene, you can find nodes.
// nodes can be directly instanced or referred from the node library.
static void AddNodeToMesh(QDomElement node,
ColladaMesh& m, Matrix44f curTr,
InfoDAE& info)
{
QDEBUG("Starting processing <node> with id %s",qPrintable(node.attribute("id")));
curTr = curTr * getTransfMatrixFromNode(node);
QDomNodeList geomNodeList = node.elementsByTagName("instance_geometry");
for(int ch = 0;ch < geomNodeList.size();++ch)
{
QDomElement instGeomNode= geomNodeList.at(ch).toElement();
if(instGeomNode.parentNode()==node) // process only direct child
{
QDEBUG("** instance_geometry with url %s (intial mesh size %i %i T = %i)",qPrintable(instGeomNode.attribute("url")),m.vn,m.fn,m.textures.size());
//assert(m.textures.size()>0 == HasPerWedgeTexCoord(m));
QString geomNode_url;
referenceToANodeAttribute(instGeomNode,"url",geomNode_url);
QDomNode refNode = findNodeBySpecificAttributeValue(*(info.doc),"geometry","id",geomNode_url);
QDomNodeList bindingNodes = instGeomNode.toElement().elementsByTagName("bind_material");
QMap<QString,QString> materialBindingMap;
if( bindingNodes.size()>0) {
QDEBUG("** instance_geometry has a material binding");
GenerateMaterialBinding(instGeomNode,materialBindingMap);
}
ColladaMesh newMesh;
// newMesh.face.EnableWedgeTex();
LoadGeometry(newMesh, info, refNode.toElement(),materialBindingMap);
tri::UpdatePosition<ColladaMesh>::Matrix(newMesh,curTr);
tri::Append<ColladaMesh,ColladaMesh>::Mesh(m,newMesh);
QDEBUG("** instance_geometry with url %s (final mesh size %i %i - %i %i)",qPrintable(instGeomNode.attribute("url")),m.vn,m.vert.size(),m.fn,m.face.size());
}
}
QDomNodeList controllerNodeList = node.elementsByTagName("instance_controller");
for(int ch = 0;ch < controllerNodeList.size();++ch)
{
QDomElement instContrNode= controllerNodeList.at(ch).toElement();
if(instContrNode.parentNode()==node) // process only direct child
{
QDEBUG("Found a instance_controller with url %s",qPrintable(instContrNode.attribute("url")));
QString controllerNode_url;
referenceToANodeAttribute(instContrNode,"url",controllerNode_url);
QDEBUG("Found a instance_controller with url '%s'", qPrintable(controllerNode_url));
QDomNode refNode = findNodeBySpecificAttributeValue(*(info.doc),"controller","id",controllerNode_url);
QDomNodeList bindingNodes = instContrNode.toElement().elementsByTagName("bind_material");
QMap<QString, QString> materialBindingMap;
if( bindingNodes.size()>0) {
QDEBUG("** instance_controller node of has a material binding");
GenerateMaterialBinding(instContrNode,materialBindingMap);
}
ColladaMesh newMesh;
LoadControllerMesh(newMesh, info, refNode.toElement(),materialBindingMap);
tri::UpdatePosition<ColladaMesh>::Matrix(newMesh,curTr);
tri::Append<ColladaMesh,ColladaMesh>::Mesh(m,newMesh);
}
}
QDomNodeList nodeNodeList = node.elementsByTagName("node");
for(int ch = 0;ch < nodeNodeList.size();++ch)
{
if(nodeNodeList.at(ch).parentNode()==node) // process only direct child
AddNodeToMesh(nodeNodeList.at(ch).toElement(), m,curTr, info);
}
QDomNodeList instanceNodeList = node.elementsByTagName("instance_node");
for(int ch = 0;ch < instanceNodeList.size();++ch)
{
if(instanceNodeList.at(ch).parentNode()==node) // process only direct child
{
QDomElement instanceNode = instanceNodeList.at(ch).toElement();
QString node_url;
referenceToANodeAttribute(instanceNode,"url",node_url);
QDEBUG("Found a instance_node with url '%s'", qPrintable(node_url));
QDomNode refNode = findNodeBySpecificAttributeValue(*(info.doc),"node","id",node_url);
if(refNode.isNull())
QDEBUG("findNodeBySpecificAttributeValue returned a null node for %s",qPrintable(node_url));
AddNodeToMesh(refNode.toElement(), m,curTr, info);
}
}
}
// Retrieve the transformation matrix that is defined in the childs of a node.
// used during the recursive descent.
static Matrix44f getTransfMatrixFromNode(const QDomElement parentNode)
{
QDEBUG("getTrans form node with tag %s",qPrintable(parentNode.tagName()));
assert(parentNode.tagName() == "node");
std::vector<QDomNode> rotationList;
QDomNode matrixNode;
QDomNode translationNode;
for(int ch = 0;ch < parentNode.childNodes().size();++ch)
{
if (parentNode.childNodes().at(ch).nodeName() == "rotate")
rotationList.push_back(parentNode.childNodes().at(ch));
if (parentNode.childNodes().at(ch).nodeName() == "translate")
translationNode = parentNode.childNodes().at(ch);
if (parentNode.childNodes().at(ch).nodeName() == "matrix")
matrixNode = parentNode.childNodes().at(ch);
}
Matrix44f rotM; rotM.SetIdentity();
Matrix44f transM; transM.SetIdentity();
if (!translationNode.isNull()) ParseTranslation(transM,translationNode);
if (!rotationList.empty()) ParseRotationMatrix(rotM,rotationList);
if (!matrixNode.isNull())
{
ParseMatrixNode(transM,matrixNode);
return transM;
}
return transM*rotM;
}
public:
//merge all meshes in the collada's file in the templeted mesh m
//I assume the mesh
static int Open(OpenMeshType& m,const char* filename, InfoDAE& info, CallBackPos *cb=0)
{
(void)cb;
QDEBUG("----- Starting the processing of %s ------",filename);
//AdditionalInfoDAE& inf = new AdditionalInfoDAE();
//info = new InfoDAE();
QDomDocument* doc = new QDomDocument(filename);
info.doc = doc;
QFile file(filename);
if (!file.open(QIODevice::ReadOnly))
return E_CANTOPEN;
if (!doc->setContent(&file))
{
file.close();
return E_CANTOPEN;
}
file.close();
//GetTexture(*(info.doc),inf);
// GenerateMaterialToTextureMap(info);
//scene->instance_visual_scene
QDomNodeList scenes = info.doc->elementsByTagName("scene");
int scn_size = scenes.size();
if (scn_size == 0)
return E_NO3DSCENE;
QDEBUG("File Contains %i Scenes",scenes.size());
int problem = E_NOERROR;
//bool found_a_mesh = false;
//Is there geometry in the file?
//bool geoinst_found = false;
// The main loading loop
// for each scene in COLLADA FILE
/*
Some notes on collada structure.
top level nodes are :
<asset>
<library_images>
<library_materials>
<library_effects>
<library_geometries>
<library_visual_scene>
<scene>
The REAL top root is the <scene> that can contains one of more (instance of) <visual_scene>.
<visual_scene> can be directly written there (check!) or instanced from their definition in the <library_visual_scene>
each <visual_scene> contains a hierarchy of <node>
each <node> contains
transformation
other nodes (to build up a hierarchy)
instance of geometry
instance of controller
instance can be direct or refers name of stuff described in a library.
An instance of geometry node should contain the <mesh> node and as a son of the <instance geometry> the material node (again referenced from a library)
-- structure of the geometry node --
*/
for(int scn = 0;scn < scn_size;++scn)
{
QDomNodeList instscenes = scenes.at(scn).toElement().elementsByTagName("instance_visual_scene");
int instscn_size = instscenes.size();
QDEBUG("Scene %i contains %i instance_visual_scene ",scn,instscn_size);
if (instscn_size == 0) return E_INCOMPATIBLECOLLADA141FORMAT;
//for each scene instance in a COLLADA scene
for(int instscn = 0;instscn < instscn_size; ++instscn)
{
QString libscn_url;
referenceToANodeAttribute(instscenes.at(instscn),"url",libscn_url);
QDEBUG("instance_visual_scene %i refers %s ",instscn,qPrintable(libscn_url));
// QDomNode nd = QDomNode(*(inf->doc));
QDomNode visscn = findNodeBySpecificAttributeValue(*(info.doc),"visual_scene","id",libscn_url);
if(visscn.isNull()) return E_UNREFERENCEBLEDCOLLADAATTRIBUTE;
//assert (visscn.toElement().Attribute("id") == libscn_url);
//for each node in the libscn_url visual scene
QDomNodeList visscn_child = visscn.childNodes();
QDEBUG("instance_visual_scene %s has %i children",qPrintable(libscn_url),visscn_child.size());
// for each direct child of a visual scene process it
for(int chdind = 0; chdind < visscn_child.size();++chdind)
{
QDomElement node=visscn_child.at(chdind).toElement();
if(node.isNull()) continue;
QDEBUG("Processing Visual Scene child %i - of type '%s'",chdind,qPrintable(node.tagName()));
Matrix44f baseTr; baseTr.SetIdentity();
if(node.toElement().tagName()=="node")
{
ColladaMesh newMesh;
AddNodeToMesh(node.toElement(), newMesh, baseTr,info);
tri::Append<OpenMeshType,ColladaMesh>::Mesh(m,newMesh);
}
} // end for each node of a given scene
} // end for each visual scene instance
} // end for each scene instance
return problem;
}
static bool LoadMask(const char * filename, InfoDAE& info)
{
bool bHasPerWedgeTexCoord = false;
bool bHasPerWedgeNormal = false;
//bool bHasPerWedgeColor = false;
bool bHasPerVertexColor = false;
bool bHasPerFaceColor = false;
bool bHasPerVertexNormal = false;
bool bHasPerVertexText = false;
QDomDocument* doc = new QDomDocument(filename);
QFile file(filename);
if (!file.open(QIODevice::ReadOnly))
return false;
if (!doc->setContent(&file))
{
file.close();
return false;
}
file.close();
QStringList textureFileList;
info.doc = doc;
GetTexCoord(*(info.doc),textureFileList);
QDomNodeList scenes = info.doc->elementsByTagName("scene");
int scn_size = scenes.size();
//Is there geometry in the file?
bool geoinst_found = false;
//for each scene in COLLADA FILE
for(int scn = 0;scn < scn_size;++scn)
{
QDomNodeList instscenes = scenes.at(scn).toElement().elementsByTagName("instance_visual_scene");
int instscn_size = instscenes.size();
if (instscn_size == 0) return false;
//for each scene instance in a COLLADA scene
for(int instscn = 0;instscn < instscn_size; ++instscn)
{
QString libscn_url;
referenceToANodeAttribute(instscenes.at(instscn),"url",libscn_url);
QDomNode nd = QDomNode(*(info.doc));
QDomNode visscn = findNodeBySpecificAttributeValue(*(info.doc),"visual_scene","id",libscn_url);
if(visscn.isNull()) return false;
//for each node in the libscn_url visual scene
//QDomNodeList& visscn_child = visscn.childNodes();
QDomNodeList visscn_child = visscn.childNodes();
//for each direct child of a libscn_url visual scene find if there is some geometry instance
for(int chdind = 0; chdind < visscn_child.size();++chdind)
{
//QDomNodeList& geoinst = visscn_child.at(chdind).toElement().elementsByTagName("instance_geometry");
QDomNodeList geoinst = visscn_child.at(chdind).toElement().elementsByTagName("instance_geometry");
int geoinst_size = geoinst.size();
if (geoinst_size != 0)
{
geoinst_found |= true;
QDomNodeList geolib = info.doc->elementsByTagName("library_geometries");
//assert(geolib.size() == 1);
if (geolib.size() != 1)
return false;
//!!!!!!!!!!!!!!!!!here will be the code for geometry transformations!!!!!!!!!!!!!!!!!!!!!!
info.numvert = 0;
info.numface = 0;
for(int geoinst_ind = 0;geoinst_ind < geoinst_size;++geoinst_ind)
{
QString geo_url;
referenceToANodeAttribute(geoinst.at(geoinst_ind),"url",geo_url);
QDomNode geo = findNodeBySpecificAttributeValue(geolib.at(0),"geometry","id",geo_url);
if (geo.isNull())
return false;
QDomNodeList vertlist = geo.toElement().elementsByTagName("vertices");
for(int vert = 0;vert < vertlist.size();++vert)
{
QDomNode no;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","POSITION");
QString srcurl;
referenceToANodeAttribute(no,"source",srcurl);
no = findNodeBySpecificAttributeValue(geo,"source","id",srcurl);
QDomNodeList fa = no.toElement().elementsByTagName("float_array");
assert(fa.size() == 1);
info.numvert += (fa.at(0).toElement().attribute("count").toInt() / 3);
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","COLOR");
if (!no.isNull())
bHasPerVertexColor = true;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","NORMAL");
if (!no.isNull())
bHasPerVertexNormal = true;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","TEXCOORD");
if (!no.isNull())
bHasPerVertexText = true;
}
const char* arr[] = {"triangles","polylist","polygons"};
for(unsigned int tt= 0;tt < 3;++tt)
{
QDomNodeList facelist = geo.toElement().elementsByTagName(arr[tt]);
for(int face = 0;face < facelist.size();++face)
{
info.numface += facelist.at(face).toElement().attribute("count").toInt() ;
QDomNode no;
no = findNodeBySpecificAttributeValue(facelist.at(face),"input","semantic","NORMAL");
if (!no.isNull())
bHasPerWedgeNormal = true;
no = findNodeBySpecificAttributeValue(facelist.at(face),"input","semantic","COLOR");
if (!no.isNull())
bHasPerVertexColor = true;
no = findNodeBySpecificAttributeValue(facelist.at(face),"input","semantic","TEXCOORD");
if (!no.isNull())
bHasPerWedgeTexCoord = true;
}
}
}
}
}
}
}
if (!geoinst_found)
{
QDomNodeList geolib = info.doc->elementsByTagName("library_geometries");
//assert(geolib.size() == 1);
if (geolib.size() != 1)
return false;
QDomNodeList geochild = geolib.at(0).toElement().elementsByTagName("geometry");
//!!!!!!!!!!!!!!!!!here will be the code for geometry transformations!!!!!!!!!!!!!!!!!!!!!!
info.numvert = 0;
info.numface = 0;
for(int geoinst_ind = 0;geoinst_ind < geochild.size();++geoinst_ind)
{
QDomNodeList vertlist = geochild.at(geoinst_ind).toElement().elementsByTagName("vertices");
for(int vert = 0;vert < vertlist.size();++vert)
{
QDomNode no;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","POSITION");
QString srcurl;
referenceToANodeAttribute(no,"source",srcurl);
no = findNodeBySpecificAttributeValue(geochild.at(geoinst_ind),"source","id",srcurl);
QDomNodeList fa = no.toElement().elementsByTagName("float_array");
assert(fa.size() == 1);
info.numvert += (fa.at(0).toElement().attribute("count").toInt() / 3);
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","COLOR");
if (!no.isNull())
bHasPerVertexColor = true;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","NORMAL");
if (!no.isNull())
bHasPerVertexNormal = true;
no = findNodeBySpecificAttributeValue(vertlist.at(vert),"input","semantic","TEXCOORD");
if (!no.isNull())
bHasPerVertexText = true;
}
QDomNodeList facelist = geochild.at(geoinst_ind).toElement().elementsByTagName("triangles");
for(int face = 0;face < facelist.size();++face)
{
info.numface += facelist.at(face).toElement().attribute("count").toInt() ;
QDomNode no;
no = findNodeBySpecificAttributeValue(facelist.at(face),"input","semantic","NORMAL");
if (!no.isNull())
bHasPerWedgeNormal = true;
no = findNodeBySpecificAttributeValue(facelist.at(face),"input","semantic","TEXCOORD");
if (!no.isNull())
bHasPerWedgeTexCoord = true;
}
}
}
info.mask = 0;
if (bHasPerWedgeTexCoord)
info.mask |= vcg::tri::io::Mask::IOM_WEDGTEXCOORD;
if (bHasPerWedgeNormal)
info.mask |= vcg::tri::io::Mask::IOM_WEDGNORMAL;
if (bHasPerVertexColor)
info.mask |= vcg::tri::io::Mask::IOM_VERTCOLOR;
if (bHasPerFaceColor)
info.mask |= vcg::tri::io::Mask::IOM_FACECOLOR;
if (bHasPerVertexNormal)
info.mask |= vcg::tri::io::Mask::IOM_VERTNORMAL;
if (bHasPerVertexText)
info.mask |= vcg::tri::io::Mask::IOM_VERTTEXCOORD;
delete (info.doc);
info.doc = NULL;
//addinfo = info;
return true;
}
};
}
}
}
#endif