/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* 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. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.27 2007/12/05 11:08:16 mischitelli
Renamed some unmeaningful variable names (b -> array_buffers ; h -> curr_hints)
Revision 1.26 2007/12/04 17:59:41 mischitelli
- Fixed DrawFill method, which required the hint 'HNUseVArray' enabled in order to render the mesh with VBO. This was also causing extra overhead in the Update method since HNUseVArray has to be enabled and therefore extra calculation were done to copy vertices in VArrays even if the user was using only VBOs.
Revision 1.25 2007/09/12 16:20:24 m_di_benedetto
*** empty log message ***
Revision 1.24 2007/09/12 14:48:50 m_di_benedetto
Corrected indexing for non textured faces.
Revision 1.23 2007/01/18 01:26:23 cignoni
Added cast for mac compiling
Revision 1.22 2006/12/12 11:06:58 cignoni
Slightly changed the colormaterial mode for the flatwire
Revision 1.21 2006/10/14 16:26:26 ponchio
Aggiunti un paio di typename... al solito.
Revision 1.20 2006/05/25 09:40:14 cignoni
gcc dislike doubleline comments; removed.
Revision 1.19 2006/02/13 13:05:05 cignoni
Removed glew inclusion
Revision 1.18 2006/02/09 10:00:39 cignoni
Switched from rough zoffset to glpolygonoffset for hiddenline and flatlines modes. Less zfighting...
Revision 1.17 2005/12/15 14:05:59 spinelli
add test (tm==TMPerWedgeMulti)
Revision 1.16 2005/12/14 00:18:43 cignoni
multiple texture support
Revision 1.15 2005/12/02 10:38:07 cignoni
Changed a wrong uppercase in the include
Revision 1.14 2005/12/02 00:03:22 cignoni
Added support for one texture mode (perwedge)
Changed texturemapid array into a safer vector
Revision 1.13 2005/11/24 08:06:50 cignoni
Added bound checking in texture access
Revision 1.12 2005/11/22 23:57:28 cignoni
Added a missing colormaterial for flatwire.
Revision 1.11 2005/10/12 18:24:30 ponchio
another bunch of typenames.
Revision 1.10 2005/10/12 17:19:03 ponchio
Added gazillions typenames, commented out old broken functions,
added unsigned int TextureMapID[128], and unsigned int & TMId(int i).
Revision 1.9 2005/05/09 11:28:48 spinelli
ho tolto 2 warning del tipo unreferenced formal parameter, commentando le var che producevano tale warning.
Revision 1.8 2005/04/22 15:16:48 turini
Minor Changes To Compile With List Containers.
Revision 1.7 2005/02/26 12:45:23 spinelli
ripristinata la modalita' di render bbox....
Revision 1.6 2005/01/12 14:39:41 tommyfranken
constructor name was wrong (old class name)
Revision 1.5 2004/12/15 18:45:07 tommyfranken
*** empty log message ***
Revision 1.4 2004/09/30 01:40:39 ponchio
<gl/glew.h> --> <GL/glew.h>
Revision 1.3 2004/07/13 11:25:57 pietroni
changed order of initial include ( it had problems with extension of openGL)
Revision 1.2 2004/07/12 15:57:33 ganovelli
first draft: it includes glew !
****************************************************************************/
#ifndef __VCG_GLTRIMESH
#define __VCG_GLTRIMESH
#include <queue>
#include <vector>
//#include <GL/glew.h>
#include <wrap/gl/space.h>
#include <wrap/gl/math.h>
#include <vcg/space/color4.h>
namespace vcg {
// classe base di glwrap usata solo per poter usare i vari drawmode, normalmode senza dover
// specificare tutto il tipo (a volte lunghissimo)
// della particolare classe glwrap usata.
class GLW
{
public:
enum DrawMode {DMNone, DMBox, DMPoints, DMWire, DMHidden, DMFlat, DMSmooth, DMFlatWire, DMRadar, DMLast} ;
enum NormalMode {NMNone, NMPerVert, NMPerFace, NMPerWedge, NMLast};
enum ColorMode {CMNone, CMPerMesh, CMPerFace, CMPerVert, CMLast};
enum TextureMode{TMNone, TMPerVert, TMPerWedge, TMPerWedgeMulti};
enum Hint {
HNUseTriStrip = 0x0001, // ha bisogno che ci sia la fftopology gia calcolata!
// HNUseEdgeStrip = 0x0002, //
HNUseDisplayList = 0x0004,
HNCacheDisplayList = 0x0008, // Each mode has its dl;
HNLazyDisplayList = 0x0010, // Display list are generated only when requested
HNIsTwoManifold = 0x0020, // There is no need to make DetachComplex before .
HNUsePerWedgeNormal = 0x0040, //
HNHasFFTopology = 0x0080, // E' l'utente che si preoccupa di tenere aggiornata la topologia ff
HNHasVFTopology = 0x0100, // E' l'utente che si preoccupa di tenere aggiornata la topologia vf
HNHasVertNormal = 0x0200, // E' l'utente che si preoccupa di tenere aggiornata le normali per faccia
HNHasFaceNormal = 0x0400, // E' l'utente che si preoccupa di tenere aggiornata le normali per vertice
HNUseVArray = 0x0800,
HNUseLazyEdgeStrip = 0x1000, // Edge Strip are generated only when requested
HNUseVBO = 0x2000, // Use Vertex Buffer Object
HNIsPolygonal = 0x4000 // In wireframe modes, hide faux edges
};
enum Change {
CHVertex = 0x01,
CHNormal = 0x02,
CHColor = 0x04,
CHFace = 0x08,
CHFaceNormal = 0x10,
CHRender = 0x20,
CHAll = 0xff
};
enum HintParami {
HNPDisplayListSize =0
};
enum HintParamf {
HNPCreaseAngle =0, // crease angle in radians
HNPZTwist = 1, // Z offset used in Flatwire and hiddenline modality
HNPPointSize = 2 // the point size used in point rendering
};
template<class MESH_TYPE>
class VertToSplit
{
public:
typename MESH_TYPE::face_base_pointer f;
char z;
char edge;
bool newp;
typename MESH_TYPE::vertex_pointer v;
};
// GL Array Elemet
class GLAElem {
public :
int glmode;
int len;
int start;
};
};
template <class MESH_TYPE, bool partial = false , class FACE_POINTER_CONTAINER = std::vector<typename MESH_TYPE::FacePointer> >
class GlTrimesh : public GLW
{
public:
typedef MESH_TYPE mesh_type;
FACE_POINTER_CONTAINER face_pointers;
std::vector<unsigned int> TMId;
unsigned int array_buffers[3];
int curr_hints; // the current hints
// The parameters of hints
int HNParami[8];
float HNParamf[8];
MESH_TYPE *m;
GlTrimesh()
{
m=0;
dl=0xffffffff;
curr_hints=HNUseLazyEdgeStrip;
cdm=DMNone;
ccm=CMNone;
cnm=NMNone;
SetHintParamf(HNPCreaseAngle,float(M_PI/5));
SetHintParamf(HNPZTwist,0.00005f);
SetHintParamf(HNPPointSize,1.0f);
}
~GlTrimesh()
{
//Delete the VBOs
if(curr_hints&HNUseVBO)
{
for(int i=0;i<3;++i)
if(glIsBuffer(array_buffers[i]))
glDeleteBuffersARB(1, (GLuint *)(array_buffers+i));
}
}
void SetHintParami(const HintParami hip, const int value)
{
HNParami[hip]=value;
}
int GetHintParami(const HintParami hip) const
{
return HNParami[hip];
}
void SetHintParamf(const HintParamf hip, const float value)
{
HNParamf[hip]=value;
}
float GetHintParamf(const HintParamf hip) const
{
return HNParamf[hip];
}
void SetHint(Hint hn)
{
curr_hints |= hn;
}
void ClearHint(Hint hn)
{
curr_hints&=(~hn);
}
unsigned int dl;
std::vector<unsigned int> indices;
DrawMode cdm; // Current DrawMode
NormalMode cnm; // Current NormalMode
ColorMode ccm; // Current ColorMode
void Update(/*Change c=CHAll*/)
{
if(m==0) return;
if(curr_hints&HNUseVArray || curr_hints&HNUseVBO)
{
typename MESH_TYPE::FaceIterator fi;
indices.clear();
for(fi = m->face.begin(); fi != m->face.end(); ++fi)
{
indices.push_back((unsigned int)((*fi).V(0) - &(*m->vert.begin())));
indices.push_back((unsigned int)((*fi).V(1) - &(*m->vert.begin())));
indices.push_back((unsigned int)((*fi).V(2) - &(*m->vert.begin())));
}
if(curr_hints&HNUseVBO)
{
if(!glIsBuffer(array_buffers[1]))
glGenBuffers(2,(GLuint*)array_buffers);
glBindBuffer(GL_ARRAY_BUFFER,array_buffers[0]);
glBufferData(GL_ARRAY_BUFFER_ARB, m->vn * sizeof(typename MESH_TYPE::VertexType),
(char *)&(m->vert[0].P()), GL_STATIC_DRAW_ARB);
glBindBuffer(GL_ARRAY_BUFFER,array_buffers[1]);
glBufferData(GL_ARRAY_BUFFER_ARB, m->vn * sizeof(typename MESH_TYPE::VertexType),
(char *)&(m->vert[0].N()), GL_STATIC_DRAW_ARB);
}
glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),0);
glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),0);
}
//int C=c;
//if((C&CHVertex) || (C&CHFace)) {
// ComputeBBox(*m);
// if(!(curr_hints&HNHasFaceNormal)) m->ComputeFaceNormal();
// if(!(curr_hints&HNHasVertNormal)) m->ComputeVertexNormal();
// C= (C | CHFaceNormal);
//}
//if((C&CHFace) && (curr_hints&HNUseEdgeStrip)) ComputeEdges();
//if((C&CHFace) && (curr_hints&HNUseLazyEdgeStrip)) ClearEdges();
//if(MESH_TYPE::HasFFTopology())
// if((C&CHFace) && (curr_hints&HNUseTriStrip)) {
// if(!(curr_hints&HNHasFFTopology)) m->FFTopology();
// ComputeTriStrip();
// }
//if((C&CHFaceNormal) && (curr_hints&HNUsePerWedgeNormal)) {
// if(!(curr_hints&HNHasVFTopology)) m->VFTopology();
// CreaseWN(*m,MESH_TYPE::scalar_type(GetHintParamf(HNPCreaseAngle)));
//}
//if(C!=0) { // force the recomputation of display list
// cdm=DMNone;
// ccm=CMNone;
// cnm=NMNone;
//}
//if((curr_hints&HNUseVArray) && (curr_hints&HNUseTriStrip))
// {
// ConvertTriStrip<MESH_TYPE>(*m,TStrip,TStripF,TStripVED,TStripVEI);
// }
}
void Draw(DrawMode dm ,ColorMode cm, TextureMode tm)
{
switch(dm)
{
case DMNone : Draw<DMNone >(cm,tm); break;
case DMBox : Draw<DMBox >(cm,tm); break;
case DMPoints : Draw<DMPoints >(cm,tm); break;
case DMWire : Draw<DMWire >(cm,tm); break;
case DMHidden : Draw<DMHidden >(cm,tm); break;
case DMFlat : Draw<DMFlat >(cm,tm); break;
case DMSmooth : Draw<DMSmooth >(cm,tm); break;
case DMFlatWire: Draw<DMFlatWire>(cm,tm); break;
default : break;
}
}
template< DrawMode dm >
void Draw(ColorMode cm, TextureMode tm)
{
switch(cm)
{
case CMNone : Draw<dm,CMNone >(tm); break;
case CMPerMesh : Draw<dm,CMPerMesh>(tm); break;
case CMPerFace : Draw<dm,CMPerFace>(tm); break;
case CMPerVert : Draw<dm,CMPerVert>(tm); break;
default : break;
}
}
template< DrawMode dm, ColorMode cm >
void Draw(TextureMode tm)
{
switch(tm)
{
case TMNone : Draw<dm,cm,TMNone >(); break;
case TMPerVert : Draw<dm,cm,TMPerVert >(); break;
case TMPerWedge : Draw<dm,cm,TMPerWedge >(); break;
case TMPerWedgeMulti : Draw<dm,cm,TMPerWedgeMulti >(); break;
default : break;
}
}
template< DrawMode dm, ColorMode cm, TextureMode tm>
void Draw()
{
if(!m) return;
if((curr_hints & HNUseDisplayList)){
if (cdm==dm && ccm==cm){
glCallList(dl);
return;
}
else {
if(dl==0xffffffff) dl=glGenLists(1);
glNewList(dl,GL_COMPILE);
}
}
glPushMatrix();
switch(dm)
{
case DMNone : break;
case DMBox : DrawBBox(cm);break;
case DMPoints : DrawPoints<NMPerVert,cm>();break;
case DMHidden : DrawHidden();break;
case DMFlat : DrawFill<NMPerFace,cm,tm>();break;
case DMFlatWire : DrawFlatWire<NMPerFace,cm,tm>();break;
case DMRadar : DrawRadar<NMPerFace,cm>();break;
case DMWire : DrawWire<NMPerVert,cm>();break;
case DMSmooth : DrawFill<NMPerVert,cm,tm>();break;
default : break;
}
glPopMatrix();
if((curr_hints & HNUseDisplayList)){
cdm=dm;
ccm=cm;
glEndList();
glCallList(dl);
}
}
/*********************************************************************************************/
/*********************************************************************************************/
template <NormalMode nm, ColorMode cm, TextureMode tm>
void DrawFill()
{
if(m->fn==0) return;
typename FACE_POINTER_CONTAINER::iterator fp;
typename MESH_TYPE::FaceIterator fi;
typename std::vector<typename MESH_TYPE::FaceType*>::iterator fip;
short curtexname=-1;
if(cm == CMPerMesh)
glColor(m->C());
if(tm == TMPerWedge || tm == TMPerWedgeMulti )
glDisable(GL_TEXTURE_2D);
if(curr_hints&HNUseVBO)
{
if( (cm==CMNone) || (cm==CMPerMesh) )
{
if (nm==NMPerVert)
glEnableClientState (GL_NORMAL_ARRAY);
glEnableClientState (GL_VERTEX_ARRAY);
if (nm==NMPerVert)
{
glBindBuffer(GL_ARRAY_BUFFER,array_buffers[1]);
glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),0);
}
glBindBuffer(GL_ARRAY_BUFFER,array_buffers[0]);
glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),0);
glDrawElements(GL_TRIANGLES ,m->fn*3,GL_UNSIGNED_INT, &(*indices.begin()) );
glDisableClientState (GL_VERTEX_ARRAY);
if (nm==NMPerVert)
glDisableClientState (GL_NORMAL_ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, 0);
return;
}
}
if(curr_hints&HNUseVArray)
{
if( (cm==CMNone) || (cm==CMPerMesh) )
{
if (nm==NMPerVert)
glEnableClientState (GL_NORMAL_ARRAY);
glEnableClientState (GL_VERTEX_ARRAY);
if (nm==NMPerVert)
glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->N()[0]));
glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->P()[0]));
glDrawElements(GL_TRIANGLES ,m->fn*3,GL_UNSIGNED_INT, &(*indices.begin()) );
glDisableClientState (GL_VERTEX_ARRAY);
if (nm==NMPerVert)
glDisableClientState (GL_NORMAL_ARRAY);
return;
}
}
else
if(curr_hints&HNUseTriStrip)
{
//if( (nm==NMPerVert) && ((cm==CMNone) || (cm==CMPerMesh)))
// if(curr_hints&HNUseVArray){
// glEnableClientState (GL_NORMAL_ARRAY );
// glNormalPointer(GL_FLOAT,sizeof(MESH_TYPE::VertexType),&(m->vert[0].cN()));
// glEnableClientState (GL_VERTEX_ARRAY);
// glVertexPointer(3,GL_FLOAT,sizeof(MESH_TYPE::VertexType),&(m->vert[0].cP()));
// std::vector<GLAElem>::iterator vi;
// for(vi=TStripVED.begin();vi!=TStripVED.end();++vi)
// glDrawElements(vi->glmode ,vi->len,GL_UNSIGNED_SHORT,&TStripVEI[vi->start] );
//
// glDisableClientState (GL_NORMAL_ARRAY );
// glDisableClientState (GL_VERTEX_ARRAY);
// return;
// }
//std::vector< MESH_TYPE::VertexType *>::iterator vi;
//glBegin(GL_TRIANGLE_STRIP);
//if(nm == NMPerFace) fip=TStripF.begin();
//for(vi=TStrip.begin();vi!=TStrip.end(); ++vi){
// if((*vi)){
// if(nm==NMPerVert) glNormal((*vi)->cN());
// if(nm==NMPerFace) glNormal((*fip)->cN());
// glVertex((*vi)->P());
// }
// else
// {
// glEnd();
// glBegin(GL_TRIANGLE_STRIP);
// }
// if(nm == NMPerFace) ++fip;
// }
//glEnd();
}
else
{
if(partial)
fp = face_pointers.begin();
else
fi = m->face.begin();
if(tm==TMPerWedgeMulti)
{
curtexname=(*fi).WT(0).n();
if (curtexname >= 0)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,TMId[curtexname]);
}
else
{
glDisable(GL_TEXTURE_2D);
}
}
if(tm==TMPerWedge)
glEnable(GL_TEXTURE_2D);
if(tm==TMPerVert && !TMId.empty()) // in the case of per vertex tex coord we assume that we have a SINGLE texture.
{
curtexname = 0;
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,TMId[curtexname]);
}
glBegin(GL_TRIANGLES);
while( (partial)?(fp!=face_pointers.end()):(fi!=m->face.end()))
{
typename MESH_TYPE::FaceType & f = (partial)?(*(*fp)): *fi;
if(!f.IsD())
{
if(tm==TMPerWedgeMulti)
if(f.WT(0).n() != curtexname)
{
curtexname=(*fi).WT(0).n();
glEnd();
if (curtexname >= 0)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,TMId[curtexname]);
}
else
{
glDisable(GL_TEXTURE_2D);
}
glBegin(GL_TRIANGLES);
}
if(nm == NMPerFace) glNormal(f.cN());
if(nm == NMPerVert) glNormal(f.V(0)->cN());
if(nm == NMPerWedge)glNormal(f.WN(0));
if(cm == CMPerFace) glColor(f.C());
if(cm == CMPerVert) glColor(f.V(0)->C());
if(tm==TMPerVert) glTexCoord(f.V(0)->T().P());
if( (tm==TMPerWedge)||(tm==TMPerWedgeMulti) )glTexCoord(f.WT(0).t(0));
glVertex(f.V(0)->P());
if(nm == NMPerVert) glNormal(f.V(1)->cN());
if(nm == NMPerWedge)glNormal(f.WN(1));
if(cm == CMPerVert) glColor(f.V(1)->C());
if(tm==TMPerVert) glTexCoord(f.V(1)->T().P());
if( (tm==TMPerWedge)|| (tm==TMPerWedgeMulti)) glTexCoord(f.WT(1).t(0));
glVertex(f.V(1)->P());
if(nm == NMPerVert) glNormal(f.V(2)->cN());
if(nm == NMPerWedge)glNormal(f.WN(2));
if(cm == CMPerVert) glColor(f.V(2)->C());
if(tm==TMPerVert) glTexCoord(f.V(2)->T().P());
if( (tm==TMPerWedge)|| (tm==TMPerWedgeMulti)) glTexCoord(f.WT(2).t(0));
glVertex(f.V(2)->P());
}
if(partial)
++fp;
else
++fi;
}
glEnd();
}
}
// A draw wireframe that hides faux edges
template <NormalMode nm, ColorMode cm>
void DrawWirePolygonal()
{
typename MESH_TYPE::FaceIterator fi;
typename FACE_POINTER_CONTAINER::iterator fp;
typename std::vector<typename MESH_TYPE::FaceType*>::iterator fip;
if(cm == CMPerMesh)
glColor(m->C());
{
if(partial)
fp = face_pointers.begin();
else
fi = m->face.begin();
glBegin(GL_LINES);
while( (partial)?(fp!=face_pointers.end()):(fi!=m->face.end()))
{
typename MESH_TYPE::FaceType & f = (partial)?(*(*fp)): *fi;
if(!f.IsD())
{
if(nm == NMPerFace) glNormal(f.cN());
if(cm == CMPerFace) glColor(f.C());
if (!f.IsF(0)) {
if(nm == NMPerVert) glNormal(f.V(0)->cN());
if(nm == NMPerWedge)glNormal(f.WN(0));
if(cm == CMPerVert) glColor(f.V(0)->C());
glVertex(f.V(0)->P());
if(nm == NMPerVert) glNormal(f.V(1)->cN());
if(nm == NMPerWedge)glNormal(f.WN(1));
if(cm == CMPerVert) glColor(f.V(1)->C());
glVertex(f.V(1)->P());
}
if (!f.IsF(1)) {
if(nm == NMPerVert) glNormal(f.V(1)->cN());
if(nm == NMPerWedge)glNormal(f.WN(1));
if(cm == CMPerVert) glColor(f.V(1)->C());
glVertex(f.V(1)->P());
if(nm == NMPerVert) glNormal(f.V(2)->cN());
if(nm == NMPerWedge)glNormal(f.WN(2));
if(cm == CMPerVert) glColor(f.V(2)->C());
glVertex(f.V(2)->P());
}
if (!f.IsF(2)) {
if(nm == NMPerVert) glNormal(f.V(2)->cN());
if(nm == NMPerWedge)glNormal(f.WN(2));
if(cm == CMPerVert) glColor(f.V(2)->C());
glVertex(f.V(2)->P());
if(nm == NMPerVert) glNormal(f.V(0)->cN());
if(nm == NMPerWedge)glNormal(f.WN(0));
if(cm == CMPerVert) glColor(f.V(0)->C());
glVertex(f.V(0)->P());
}
}
if(partial)
++fp;
else
++fi;
}
glEnd();
}
}
/// Basic Point drawing fucntion
// works also for mesh with deleted vertices
template<NormalMode nm, ColorMode cm>
void DrawPointsBase()
{
typename MESH_TYPE::VertexIterator vi;
glBegin(GL_POINTS);
if(cm==CMPerMesh) glColor(m->C());
for(vi=m->vert.begin();vi!=m->vert.end();++vi)if(!(*vi).IsD())
{
if(nm==NMPerVert) glNormal((*vi).cN());
if(cm==CMPerVert) glColor((*vi).C());
glVertex((*vi).P());
}
glEnd();
}
/// Utility function that computes in eyespace the current distance between the camera and the center of the bbox of the mesh
double CameraDistance(){
Point3<typename MESH_TYPE::ScalarType> res;
Matrix44<typename MESH_TYPE::ScalarType> mm;
glGetv(GL_MODELVIEW_MATRIX,mm);
Point3<typename MESH_TYPE::ScalarType> c=m->bbox.Center();
res=mm*c;
return Norm(res);
}
template<NormalMode nm, ColorMode cm>
void DrawPoints()
{
glPushAttrib(GL_ENABLE_BIT | GL_POINT_BIT);
glPointSize(GetHintParamf(HNPPointSize));
if (glPointParameterfv) {
float camDist = (float)CameraDistance();
float quadratic[] = { 0.0f, 0.0f, 1.0f/(camDist*camDist) , 0.0f };
glPointParameterfv( GL_POINT_DISTANCE_ATTENUATION, quadratic );
glPointParameterf( GL_POINT_SIZE_MAX, 16.0f );
glPointParameterf( GL_POINT_SIZE_MIN, 1.0f );
}
if(m->vn!=(int)m->vert.size())
{
DrawPointsBase<nm,cm>();
}
else
{
if(cm==CMPerMesh)
glColor(m->C());
// Perfect case, no deleted stuff,
// draw the vertices using vertex arrays
if (nm==NMPerVert)
{
glEnableClientState (GL_NORMAL_ARRAY);
if (m->vert.size() != 0)
glNormalPointer(GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->N()[0]));
}
if (cm==CMPerVert)
{
glEnableClientState (GL_COLOR_ARRAY);
if (m->vert.size() != 0)
glColorPointer(4,GL_UNSIGNED_BYTE,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->C()[0]));
}
glEnableClientState (GL_VERTEX_ARRAY);
if (m->vert.size() != 0)
glVertexPointer(3,GL_FLOAT,sizeof(typename MESH_TYPE::VertexType),&(m->vert.begin()->P()[0]));
glDrawArrays(GL_POINTS,0,m->vn);
glDisableClientState (GL_VERTEX_ARRAY);
if (nm==NMPerVert) glDisableClientState (GL_NORMAL_ARRAY);
if (cm==CMPerVert) glDisableClientState (GL_COLOR_ARRAY);
}
glPopAttrib();
return;
}
void DrawHidden()
{
//const float ZTWIST=HNParamf[HNPZTwist];
glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT | GL_LIGHTING_BIT );
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(1.0, 1);
//glDepthRange(ZTWIST,1.0f);
glDisable(GL_LIGHTING);
glColorMask(GL_FALSE,GL_FALSE,GL_FALSE,GL_FALSE);
DrawFill<NMNone,CMNone,TMNone>();
glDisable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_LIGHTING);
glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
//glDepthRange(0.0f,1.0f-ZTWIST);
DrawWire<NMPerVert,CMNone>();
glPopAttrib();
// glDepthRange(0,1.0f);
}
template <NormalMode nm, ColorMode cm, TextureMode tm>
void DrawFlatWire()
{
//const float ZTWIST=HNParamf[HNPZTwist];
//glDepthRange(ZTWIST,1.0f);
glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT | GL_LIGHTING_BIT );
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(1.0, 1);
DrawFill<nm,cm,tm>();
glDisable(GL_POLYGON_OFFSET_FILL);
//glDepthRange(0.0f,1.0f-ZTWIST);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
//glColorMaterial(GL_FRONT,GL_DIFFUSE);
glColor3f(.3f,.3f,.3f);
DrawWire<nm,CMNone>();
glPopAttrib();
//glDepthRange(0,1.0f);
}
template <NormalMode nm, ColorMode cm>
void DrawRadar()
{
const float ZTWIST=HNParamf[HNPZTwist];
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(0);
glDepthRange(ZTWIST,1.0f);
if (cm == CMNone)
glColor4f(0.2f, 1.0f, 0.4f, 0.2f);
// DrawFill<nm,cm,TMNone>();
Draw<DMFlat,CMNone,TMNone>();
glDepthMask(1);
glColorMask(GL_FALSE,GL_FALSE,GL_FALSE,GL_FALSE);
// DrawFill<nm,cm,TMNone>();
Draw<DMFlat,CMNone,TMNone>();
glDepthRange(0.0f,1.0f-ZTWIST);
glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
glColor4f(0.1f, 1.0f, 0.2f, 0.6f);
Draw<DMWire,CMNone,TMNone>();
glDisable(GL_BLEND);
glDepthRange(0,1.0f);
}
#ifdef GL_TEXTURE0_ARB
// Multitexturing nel caso voglia usare due texture unit.
void DrawTexture_NPV_TPW2()
{
unsigned int texname=(*(m->face.begin())).WT(0).n(0);
glBindTexture(GL_TEXTURE_2D,TMId[texname]);
typename MESH_TYPE::FaceIterator fi;
glBegin(GL_TRIANGLES);
for(fi=m->face.begin();fi!=m->face.end();++fi)if(!(*fi).IsD()){
if(texname!=(*fi).WT(0).n(0)) {
texname=(*fi).WT(0).n(0);
glEnd();
glBindTexture(GL_TEXTURE_2D,TMId[texname]);
glBegin(GL_TRIANGLES);
}
glMultiTexCoordARB(GL_TEXTURE0_ARB, (*fi).WT(0).t(0));
glMultiTexCoordARB(GL_TEXTURE1_ARB, (*fi).WT(0).t(0));
glNormal((*fi).V(0)->N());
glVertex((*fi).V(0)->P());
glMultiTexCoordARB(GL_TEXTURE0_ARB, (*fi).WT(1).t(0));
glMultiTexCoordARB(GL_TEXTURE1_ARB, (*fi).WT(1).t(0));
glNormal((*fi).V(1)->N());
glVertex((*fi).V(1)->P());
glMultiTexCoordARB(GL_TEXTURE0_ARB, (*fi).WT(2).t(0));
glMultiTexCoordARB(GL_TEXTURE1_ARB, (*fi).WT(2).t(0));
glNormal((*fi).V(2)->N());
glVertex((*fi).V(2)->P());
}
glEnd();
}
#endif
/*int MemUsed()
{
int tot=sizeof(GlTrimesh);
tot+=sizeof(mesh_type::edge_type)*edge.size();
tot+=sizeof(MESH_TYPE::VertexType *) * EStrip.size();
tot+=sizeof(MESH_TYPE::VertexType *) * TStrip.size();
tot+=sizeof(MESH_TYPE::FaceType *) * TStripF.size();
return tot;
}*/
private:
template <NormalMode nm, ColorMode cm>
void DrawWire()
{
//if(!(curr_hints & (HNUseEdgeStrip | HNUseLazyEdgeStrip) ) )
if ( (curr_hints & HNIsPolygonal) )
{
DrawWirePolygonal<nm,cm>();
}
else
{
glPushAttrib(GL_POLYGON_BIT);
glPolygonMode(GL_FRONT_AND_BACK ,GL_LINE);
DrawFill<nm,cm,TMNone>();
glPopAttrib();
}
// {
// if(!HasEdges()) ComputeEdges();
//if(cm==CMPerMesh) glColor(m->C());
//std::vector< MESH_TYPE::VertexType *>::iterator vi;
//glBegin(GL_LINE_STRIP);
//for(vi=EStrip.begin();vi!=EStrip.end(); ++vi){
// if((*vi)){
// glNormal((*vi)->N());
// glVertex((*vi)->P());
// }
// else
// {
// glEnd();
// glBegin(GL_LINE_STRIP);
// }
//}
//glEnd();
// }
}
void DrawBBox(ColorMode cm)
{
if(cm==CMPerMesh) glColor(m->C());
glBoxWire(m->bbox);
}
};// end class
/*
Crease Angle
Assume che:
la mesh abbia la topologia ff
la mesh non abbia complex (o se li aveva fossero stati detached)
Abbia le normali per faccia normalizzate!!
Prende una mesh e duplica tutti gli edge le cui normali nelle facce incidenti formano un angolo maggiore
di <angle> (espresso in rad).
foreach face
foreach unvisited vert vi
scan the star of triangles around vi duplicating vi each time we encounter a crease angle.
the new (and old) vertexes are put in a std::vector that is swapped with the original one at the end.
*/
// uncomment one of the following line to enable the Verbose Trace for Crease
#define VCTRACE (void)0
//#define VCTRACE TRACE
template<class MESH_TYPE>
void Crease(MESH_TYPE &m, typename MESH_TYPE::scalar_type angleRad)
{
assert(m.HasFFTopology());
typename MESH_TYPE::scalar_type cosangle=Cos(angleRad);
std::vector<GLW::VertToSplit<MESH_TYPE> > SPL;
std::vector<typename MESH_TYPE::VertexType> newvert;
newvert.reserve(m.fn*3);
// indica se un il vertice z della faccia e' stato processato
enum {VISITED_0= MESH_TYPE::FaceType::USER0,
VISITED_1= MESH_TYPE::FaceType::USER0<<1,
VISITED_2= MESH_TYPE::FaceType::USER0<<2} ;
int vis[3]={VISITED_0,VISITED_1,VISITED_2};
//int _t2=clock();
typename MESH_TYPE::FaceIterator fi;
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD()) (*fi).Supervisor_Flags()&= (~(VISITED_0 | VISITED_1 | VISITED_2));
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
for(int j=0;j<3;++j)
if(!((*fi).Supervisor_Flags() & (vis[j])))
{
//VCTRACE("Face %i Spinning around vertex %i\n",fi-m.face.begin(), (*fi).V(j)-m.vert.begin());
//(*fi).Supervisor_Flags() |= vis[j];
typename MESH_TYPE::hedgepos_type he(&*fi,j,(*fi).V(j));
typename MESH_TYPE::hedgepos_type she=he;
typename MESH_TYPE::face_base_pointer nextf;
GLW::VertToSplit<MESH_TYPE> spl;
spl.newp=false;
spl.edge=-1;
//Primo giro per trovare un bordo da cui partire
do {
he.FlipF();
he.FlipE();
if(he.IsBorder()) break;
} while(he!=she);
if(he==she) // non c'e'bordi allora si cerca un crease
{
do {
he.FlipF();
he.FlipE();
nextf=he.f->F(he.z);
typename MESH_TYPE::scalar_type ps=nextf->N()*he.f->N();
if(ps<cosangle) break;
int vz=0;
if(he.v == he.f->V(he.z)) vz=he.z;
if(he.v == he.f->V((he.z+1)%3)) vz=(he.z+1)%3;
assert((he.f->Supervisor_Flags() & vis[vz] )==0);
} while(he!=she);
}
he.FlipE();
she=he;
newvert.push_back(*(*fi).V(j));
typename MESH_TYPE::vertex_pointer curvert=&newvert.back();
// VCTRACE("Starting from face %i edge %i vert %i \n",he.f-m.face.begin(), he.z, he.v-m.vert.begin());
// Secondo giro in cui si riempie il vettore SPL con tutte le info per fare i nuovi vertici
do{
//TRACE(" -- spinning face %i edge %i vert %i\n",he.f-m.face.begin(), he.z, he.v-m.vert.begin());
spl.v=curvert;
spl.f=he.f;
spl.z=-1;
if(he.v == he.f->V(he.z)) spl.z=he.z;
if(he.v == he.f->V((he.z+1)%3)) spl.z=(he.z+1)%3;
assert(spl.z>=0);
//VCTRACE(" -- spinning face vert %i Adding spl face %i vert %i\n",
// he.v-m.vert.begin(), spl.f-m.face.begin(), spl.z );
assert((spl.f->Supervisor_Flags() & vis[spl.z] )==0);
spl.f->Supervisor_Flags() |= vis[spl.z];
SPL.push_back(spl);
spl.newp=false;
spl.edge=-1;
if(he.IsBorder()) break;
nextf=he.f->F(he.z);
if(nextf==she.f) break;
typename MESH_TYPE::scalar_type ps=nextf->N()*he.f->N();
if(ps<cosangle){
// VCTRACE("splitting faces %i-%i edge %i vert %i\n",nextf-m.face.begin(),he.f-m.face.begin(), he.z, he.v-m.vert.begin());
newvert.push_back(*(he.v));
curvert=&newvert.back();
spl.newp=true;
//spl.edge=he.z;
}
he.FlipF();
if(spl.newp) spl.edge=he.z;
he.FlipE();
}while(he!=she);
}
assert(SPL.size()==m.fn*3);
typename std::vector<GLW::VertToSplit<MESH_TYPE> >::iterator vsi;
for(vsi=SPL.begin();vsi!=SPL.end();++vsi)
{
(*vsi).f->V((*vsi).z)=(*vsi).v;
if((*vsi).newp){
assert((*vsi).edge>=0 && (*vsi).edge<3);
if(!(*vsi).f->IsBorder( (*vsi).edge) )
(*vsi).f->Detach((*vsi).edge);
}
}
m.vert.math::Swap(newvert);
m.vn=m.vert.size();
}
/*
Secondo tipo di crease angle. ha bisogno del per wedge normal
e delle adiacence per vertice faccia gia fatte;
Assume che le normali per faccia siano gia'state fatte (se ci sono)
*/
/*template<class MESH_TYPE>
void CreaseWN(MESH_TYPE &m, typename MESH_TYPE::scalar_type angle)
{
if(!(MESH_TYPE::FaceType::OBJ_TYPE & MESH_TYPE::FaceType::OBJ_TYPE_WN) )
{
assert(0); // You needs a mesh with faces having per wedge normals
return;
}
typename MESH_TYPE::scalar_type cosangle=Cos(angle);
typename MESH_TYPE::FaceIterator fi;
// Clear the per wedge normals
for(fi=m.face.begin();fi!=m.face.end();++fi) if(!(*fi).IsD())
{
(*fi).WN(0)=MESH_TYPE::vectorial_type(0,0,0);
(*fi).WN(1)=MESH_TYPE::vectorial_type(0,0,0);
(*fi).WN(2)=MESH_TYPE::vectorial_type(0,0,0);
}
typename MESH_TYPE::FaceType::vectorial_type nn;
for(fi=m.face.begin();fi!=m.face.end();++fi) if(!(*fi).IsD())
{
nn=(*fi).cN();
for(int i=0;i<3;++i)
{
VEdgePosB<MESH_TYPE::FaceType::face_base> x;
for(x.f = (*fi).V(i)->Fp(), x.z = (*fi).V(i)->Zp(); x.f!=0; x.NextF() ) {
assert(x.f->V(x.z)==(*fi).V(i));
if(x.f->cN()*nn > cosangle) x.f->WN(x.z)+=nn;
}
}
}
}*/
} // end namespace
#endif