add vcglib
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004-2016 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.10 2005/11/12 06:48:47 cignoni
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Version 1.0
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Added management of point set, correct bug in printing on the screen,
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Revision 1.9 2005/01/03 13:59:54 cignoni
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Resolved min/max macro conflict
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Revision 1.8 2004/09/30 00:57:42 ponchio
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Reference to temporary fixed and indented.
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Revision 1.7 2004/09/28 09:46:51 cignoni
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Added MapFalseColor
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Revision 1.6 2004/09/16 14:08:35 ponchio
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gamma is a math function.
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Revision 1.5 2004/09/10 14:02:20 cignoni
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Added Cone directions
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Revision 1.4 2004/09/09 22:34:38 cignoni
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Integrated lost modifications...
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Revision 1.3 2004/09/09 14:35:54 ponchio
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Various changes for gcc compatibility
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Revision 1.2 2004/07/11 22:13:30 cignoni
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Added GPL comments
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****************************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <time.h>
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// this define is mandatory to avoid the conflicts due to the silly definition of
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// min and max macros in windows.h (included by glut...)
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#define NOMINMAX
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#include <GL/glew.h>
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#include <GL/glut.h>
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#include <wrap/gl/space.h>
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#include <wrap/callback.h>
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#include <vcg/math/base.h>
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#include <wrap/gui/trackball.h>
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#include <vcg/simplex/vertex/with/vcvn.h>
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#include <vcg/simplex/vertex/with/vcvn.h>
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#include <vcg/simplex/face/with/fn.h>
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#include <vcg/space/index/grid_static_ptr.h>
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#include <vcg/complex/complex.h>
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#include<wrap/io_trimesh/export_ply.h>
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#include<wrap/io_trimesh/import_ply.h>
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#include<vcg/complex/algorithms/update/normal.h>
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#include<vcg/complex/algorithms/update/bounding.h>
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#include<vcg/complex/algorithms/update/color.h>
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#include "visshader.h"
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using namespace vcg;
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using namespace std;
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// Vertex, Face, Mesh and Grid definitions.
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class MyEdge;
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class AFace;
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class AVertex : public VertexVCVN< float ,MyEdge,AFace > {};
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class AFace : public FaceFN< AVertex,MyEdge,AFace > {};
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class AMesh : public tri::TriMesh< vector<AVertex>, vector<AFace> > {};
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///////// Global ////////
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int SampleNum=64;
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int WindowRes=800;
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unsigned int TexInd=0;
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bool SwapFlag=false;
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bool CullFlag=false;
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bool ClosedFlag=false;
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Point3f ConeDir(0,1,0);
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float ConeAngleRad = math::ToRad(180.0f);
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float lopass=0,hipass=1,gamma_correction=1;
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float diff=.8;
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float ambi=.2;
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bool LightFlag=true;
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bool ColorFlag=true;
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bool FalseColorFlag=false;
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bool ShowDirFlag=false;
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int imgcnt=0;
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Color4b BaseColor=Color4b::White;
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Trackball QV;
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Trackball QL;
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Trackball *Q=&QV;
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int ScreenH,ScreenW;
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float ViewAngle=33;
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vector<Point3f> ViewVector;
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bool cb(const char *buf)
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{
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printf(buf);
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return true;
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}
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void BuildOnePixelTexture(Color4b c, unsigned int &TexInd)
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{
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if(TexInd==0) glGenTextures(1,&TexInd);
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glBindTexture(GL_TEXTURE_1D,TexInd);
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glTexImage1D(GL_TEXTURE_1D,0,GL_RGBA,1,0,GL_RGBA,GL_UNSIGNED_BYTE,&c);
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glEnable(GL_TEXTURE_1D);
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glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
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}
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void glutPrintf(int x, int y, const char * f, ... )
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{
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glMatrixMode (GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity ();
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glOrtho(0,ScreenW,0,ScreenH,-1,1);
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glMatrixMode (GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity ();
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int len, i;
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char buf[4096];
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va_list marker;
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va_start( marker, f );
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int n = vsprintf(buf,f,marker);
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va_end( marker );
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glPushAttrib(GL_ENABLE_BIT);
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glDisable(GL_LIGHTING);
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glColor3f(0,0,0);
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glRasterPos2f(x, y);
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len = (int) strlen(buf);
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for (i = 0; i < len; i++) {
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glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, buf[i]);
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}
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glMatrixMode (GL_PROJECTION);
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glPopMatrix();
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glMatrixMode (GL_MODELVIEW);
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glPopMatrix();
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glPopAttrib();
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}
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// prototypes
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void SaveTexturedGround();
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void DrawViewVector()
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{
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glDisable(GL_LIGHTING);
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glColor3f(0,0,1);
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glBegin(GL_LINES);
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for(unsigned int i=0;i<ViewVector.size();++i)
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{
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glVertex3f(0,0,0);glVertex(ViewVector[i]);
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}
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glEnd();
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}
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void DrawLightVector()
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{
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const int sz=5;
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glPushMatrix();
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QL.Apply();
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glDisable(GL_LIGHTING);
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glBegin(GL_LINES);
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glColor3f(1,1,0);
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for(unsigned int i=0;i<=sz;++i)
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for(unsigned int j=0;j<=sz;++j)
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{
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glColor3f(1,1,0);
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glVertex3f(-1.0f+i*2.0/sz,-1.0f+j*2.0/sz,-1);
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glVertex3f(-1.0f+i*2.0/sz,-1.0f+j*2.0/sz, 1);
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}
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glEnd();
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glPopMatrix();
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}
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void Draw(AMesh &mm)
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{
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if(mm.face.empty())
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{
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glPushAttrib(GL_ENABLE_BIT);
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glDisable(GL_LIGHTING);
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AMesh::VertexIterator vi;
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glBegin(GL_POINTS);
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for(vi=mm.vert.begin();vi!=mm.vert.end();++vi)
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{
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if(ColorFlag) glColor((*vi).C());
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glVertex((*vi).P());
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}
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glEnd();
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glPopAttrib();
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}
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else
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{
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AMesh::FaceIterator fi;
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glBegin(GL_TRIANGLES);
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for(fi=mm.face.begin();fi!=mm.face.end();++fi)
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{
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glNormal((*fi).V(0)->N()); if(ColorFlag) glColor((*fi).V(0)->C()); glVertex((*fi).V(0)->P());
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glNormal((*fi).V(1)->N()); if(ColorFlag) glColor((*fi).V(1)->C()); glVertex((*fi).V(1)->P());
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glNormal((*fi).V(2)->N()); if(ColorFlag) glColor((*fi).V(2)->C()); glVertex((*fi).V(2)->P());
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}
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glEnd();
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}
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}
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AMesh m;
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VertexVisShader<AMesh> Vis(m);
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string OutNameMsh;
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/* Called when the window is first opened and whenever
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* the window is reconfigured (moved or resized).
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*/
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void ViewReshape(GLsizei w, GLsizei h)
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{
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ScreenW=w; ScreenH=h;
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glViewport(0,0,w,h);
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}
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void ViewDisplay (void)
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{
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glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gluPerspective(ViewAngle,(float)ScreenW/ScreenH,1,7);
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glMatrixMode (GL_MODELVIEW);
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glLoadIdentity ();
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glPushMatrix();
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QL.Apply();
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glutPrintf(5,5,"Diffuse %04.2f Ambient %04.2f "
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" LowPass %04.2f HiPass %04.2f Gamma %04.2f rgb = %03i:%03i:%03i",
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diff,ambi,lopass,hipass,gamma_correction,BaseColor[0],BaseColor[1],BaseColor[2]);
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GLfloat light_position0[] = {0.0, 10.0, 300.0, 0.0};
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glLightfv(GL_LIGHT0, GL_POSITION, light_position0);
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glPopMatrix();
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glTranslatef(0,0,-4);
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if(Q==&QL) DrawLightVector();
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QL.GetView();
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QV.GetView();
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QV.Apply();
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if(ShowDirFlag) DrawViewVector();
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float d = 2.0/m.bbox.Diag();
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glScalef(d, d, d);
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glColor3f(diff,diff,diff);
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glTranslate(-m.bbox.Center());
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if(LightFlag) glEnable(GL_LIGHTING);
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else glDisable(GL_LIGHTING);
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if(ColorFlag) glEnable(GL_COLOR_MATERIAL);
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else glDisable(GL_COLOR_MATERIAL);
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if(FalseColorFlag) glColorMaterial(GL_FRONT,GL_DIFFUSE);
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else glColorMaterial(GL_FRONT,GL_AMBIENT);
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glMateriali(GL_FRONT,GL_SHININESS,0);
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float spec[4]={0,0,0,1};
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float ambientV[4]={ambi,ambi,ambi,1};
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float diffuseV[4]={diff,diff,diff,1};
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glMaterialfv(GL_FRONT,GL_SPECULAR,spec);
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glMaterialfv(GL_FRONT,GL_AMBIENT, ambientV);
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glMaterialfv(GL_FRONT,GL_DIFFUSE, diffuseV);
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glCullFace(GL_BACK);
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if(CullFlag) glEnable(GL_CULL_FACE);
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else glDisable(GL_CULL_FACE);
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BuildOnePixelTexture(BaseColor,TexInd);
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Draw(m);
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glutSwapBuffers();
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}
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void ViewSpecialKey(int , int , int )
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{
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glutPostRedisplay();
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}
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void Toggle(bool &flag) {flag = !flag;}
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void UpdateVis()
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{
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if( LightFlag && !FalseColorFlag)
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Vis.MapVisibility(gamma_correction,lopass,hipass,ambi);
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if(!LightFlag && !FalseColorFlag)
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Vis.MapVisibility(gamma_correction,lopass,hipass,1.0);
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if(FalseColorFlag)
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Vis.MapFalseColor();
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}
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/*********************************************************************/
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/*********************************************************************/
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/*********************************************************************/
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void ViewKey(unsigned char key, int , int )
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{
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Point3f dir;
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switch (key) {
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case 27: exit(0); break;
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case 9: if(Q==&QV) Q=&QL;else Q=&QV; break;
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case 'l' :
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lopass=lopass+.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 'L' :
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lopass=lopass-.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 'h' :
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hipass=hipass-.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 'H' :
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hipass=hipass+.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 'd' : diff+=.05; printf("Ambient %f Diffuse %f, \n",ambi,diff); UpdateVis(); break;
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case 'D' : diff-=.05; printf("Ambient %f Diffuse %f, \n",ambi,diff); UpdateVis(); break;
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case 'a' : ambi+=.05; printf("Ambient %f Diffuse %f, \n",ambi,diff); UpdateVis(); break;
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case 'A' : ambi-=.05; printf("Ambient %f Diffuse %f, \n",ambi,diff); UpdateVis(); break;
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case 'e' : ambi+=.05; diff-=.05;
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printf("Ambient %f Diffuse %f, \n",ambi,diff);
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UpdateVis(); break;
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case 'E' : ambi-=.05; diff+=.05;
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printf("Ambient %f Diffuse %f, \n",ambi,diff);
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UpdateVis(); break;
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case 'p' :
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gamma_correction=gamma_correction-.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 'P' :
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gamma_correction=gamma_correction+.05;
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printf("Lo %f, Hi %f Gamma %f\n",lopass,hipass,gamma_correction);
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UpdateVis(); break;
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case 13 :
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//Vis.ComputeUniform(SampleNum,ViewVector,cb);
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Vis.ComputeUniformCone(SampleNum,ViewVector, ConeAngleRad,ConeDir,cb);
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UpdateVis(); break;
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case ' ' : {
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Point3f dir = Q->camera.ViewPoint();
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printf("ViewPoint %f %f %f\n",dir[0],dir[1],dir[2]);
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dir.Normalize();
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dir=Inverse(Q->track.Matrix())*dir;
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printf("ViewPoint %f %f %f\n",dir[0],dir[1],dir[2]);
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dir.Normalize();
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Vis.ComputeSingle(dir,ViewVector,cb);
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UpdateVis();
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} break;
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case 'r' : BaseColor[0]=min(255,BaseColor[0]+2); break;
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case 'R' : BaseColor[0]=max( 0,BaseColor[0]-2); break;
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case 'g' : BaseColor[1]=min(255,BaseColor[1]+2); break;
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case 'G' : BaseColor[1]=max( 0,BaseColor[1]-2); break;
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case 'b' : BaseColor[2]=min(255,BaseColor[2]+2); break;
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case 'B' : BaseColor[2]=max( 0,BaseColor[2]-2); break;
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case 'v' : Toggle(ShowDirFlag); break;
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case 'V' :
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{
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SimplePic<Color4b> snapC;
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snapC.OpenGLSnap();
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char buf[128];
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sprintf(buf,"Snap%03i.ppm",imgcnt++);
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snapC.SavePPM(buf);
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}
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case 's' :
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Vis.SmoothVisibility();
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UpdateVis(); break;
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case 't' :
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Vis.SmoothVisibility(true);
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UpdateVis(); break;
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case 'S' :
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{
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vcg::tri::io::PlyInfo p;
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p.mask|=vcg::tri::io::Mask::IOM_VERTCOLOR /* | vcg::ply::PLYMask::PM_VERTQUALITY*/ ;
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tri::io::ExporterPLY<AMesh>::Save(m,OutNameMsh.c_str(),false,p);
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}
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break;
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case 'C' : LightFlag = !LightFlag;
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printf("Toggled Light %s\n",LightFlag?"on":"off");
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UpdateVis(); break;
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case 'c' : ColorFlag = !ColorFlag;
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printf("Toggled Color %s\n",ColorFlag?"on":"off"); break;
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case 'f' : FalseColorFlag = !FalseColorFlag;
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printf("Toggled FalseColor %s\n",ColorFlag?"on":"off");
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UpdateVis(); break;
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case '1' : diff=0.80f; ambi=0.10f; gamma_correction=1.0; lopass=0.00f; hipass=1.00f; ColorFlag=false; UpdateVis(); break;
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case '2' : diff=0.65f; ambi=0.30f; gamma_correction=1.0; lopass=0.15f; hipass=0.80f; ColorFlag=true; UpdateVis(); break;
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case '3' : diff=0.45f; ambi=0.50f; gamma_correction=1.0; lopass=0.20f; hipass=0.75f; ColorFlag=true; UpdateVis(); break;
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case '4' : diff=0.35f; ambi=0.60f; gamma_correction=1.0; lopass=0.25f; hipass=0.70f; ColorFlag=true; UpdateVis(); break;
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}
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glutPostRedisplay(); ;
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}
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void ViewMenu(int val)
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||||
{
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ViewKey(val, 0, 0);
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}
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||||
/*********************************************************************/
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||||
// TrackBall Functions
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||||
/*********************************************************************/
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||||
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||||
int GW,GH; // Grandezza della finestra
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||||
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||||
void ViewMouse(int button, int state, int x, int y)
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||||
{
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static int KeyMod=0;
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||||
static int glut_buttons=0;
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||||
//printf("ViewMouse %i %i %i %i\n",x,y,button,state);
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int m_mask = 0;
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||||
if(state == GLUT_DOWN) {
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KeyMod=glutGetModifiers();
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if(GLUT_ACTIVE_SHIFT & KeyMod) m_mask |= Trackball::KEY_SHIFT;
|
||||
if(GLUT_ACTIVE_ALT & KeyMod) m_mask |= Trackball::KEY_ALT;
|
||||
if(GLUT_ACTIVE_CTRL & KeyMod) m_mask |= Trackball::KEY_CTRL;
|
||||
|
||||
glut_buttons |= (1<<button);
|
||||
Q->MouseDown(x, ScreenH-y, glut_buttons | m_mask);
|
||||
} else {
|
||||
if(GLUT_ACTIVE_SHIFT & KeyMod) m_mask |= Trackball::KEY_SHIFT;
|
||||
if(GLUT_ACTIVE_ALT & KeyMod) m_mask |= Trackball::KEY_ALT;
|
||||
if(GLUT_ACTIVE_CTRL & KeyMod) m_mask |= Trackball::KEY_CTRL;
|
||||
glut_buttons |= (1<<button);
|
||||
Q->MouseUp(x, ScreenH-y, glut_buttons | m_mask);
|
||||
}
|
||||
}
|
||||
|
||||
void ViewMouseMotion(int x, int y)
|
||||
{
|
||||
Q->MouseMove(x,ScreenH-y);
|
||||
glutPostRedisplay();
|
||||
}
|
||||
|
||||
void SetLight()
|
||||
{
|
||||
GLfloat light_ambient0[] = {0.0, 0.0, 0.0, 1.0};
|
||||
GLfloat light_diffuse0[] = {1.0, 1.0, 1.0, 1.0};
|
||||
GLfloat light_position0[] = {0.0, 10.0, 300.0, 0.0};
|
||||
glLightfv(GL_LIGHT0, GL_POSITION, light_position0);
|
||||
glLightfv(GL_LIGHT0, GL_AMBIENT, light_diffuse0);
|
||||
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse0);
|
||||
glEnable(GL_LIGHT0);
|
||||
glLightModelfv(GL_LIGHT_MODEL_AMBIENT,light_ambient0);
|
||||
|
||||
}
|
||||
|
||||
void ViewInit (void) {
|
||||
SetLight();
|
||||
Q->Reset();
|
||||
Q->radius= 1;
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
glDepthFunc(GL_LEQUAL);
|
||||
glClearColor (0.8, 0.8, 0.8, 0.0);
|
||||
glEnable(GL_NORMALIZE);
|
||||
glEnable(GL_LIGHTING);
|
||||
|
||||
// glEnable(GL_BLEND);
|
||||
glShadeModel(GL_SMOOTH);
|
||||
// glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
|
||||
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
||||
glEnable(GL_CULL_FACE);
|
||||
glCullFace(GL_BACK);
|
||||
}
|
||||
|
||||
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
if(argc<2) {
|
||||
printf(
|
||||
"shadevis 1.0 \n"__DATE__"\n"
|
||||
"Copyright 2003-2004 Visual Computing Lab I.S.T.I. C.N.R.\n"
|
||||
"Paolo Cignoni (cignoni@isti.cnr.it)\n\n"
|
||||
"Usage: shadevis file.ply [options]\n"
|
||||
"Options:\n"
|
||||
" -w# WindowResolution (default 600)\n"
|
||||
" -n# Sample Directions (default 64)\n"
|
||||
" -z# z offset (default 1e-3)\n"
|
||||
" -c assume that the mesh is closed (slightly faster, default false)\n"
|
||||
" -f Flip normal of the model\n"
|
||||
" -da # Cone Direction Angle in degree (default 180)\n"
|
||||
" -dv # # # Cone Direction vector (default 0 0 1)\n"
|
||||
);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
srand(time(0));
|
||||
int i=1;
|
||||
while(i<argc && (argv[i][0]=='-'))
|
||||
{
|
||||
switch(argv[i][1])
|
||||
{
|
||||
case 'd' :
|
||||
if(argv[i][2] == 'a') {
|
||||
ConeAngleRad = math::ToRad(atof(argv[i+1])); ++i; break;
|
||||
}
|
||||
if(argv[i][2] == 'v') {
|
||||
Point3f p(atof(argv[i+1]),atof(argv[i+2]),atof(argv[i+3]));
|
||||
ConeDir = Normalize(p);
|
||||
i+=3; break;
|
||||
}
|
||||
printf("Error unable to parse option '%s'\n",argv[i]);
|
||||
exit(0);
|
||||
break;
|
||||
case 'n' : SampleNum = atoi(argv[i]+2); break;
|
||||
case 'f' : SwapFlag=false; break;
|
||||
case 'c' : ClosedFlag=true; break;
|
||||
case 'w' : WindowRes= atoi(argv[i]+2);
|
||||
printf("Set WindowRes to %i\n",WindowRes ); break;
|
||||
case 's' : Vis.SplitNum= atoi(argv[i]+2);
|
||||
printf("Set SplitNum to %i\n",Vis.SplitNum ); break;
|
||||
case 'z' : Vis.ZTWIST = atof(argv[i]+2);
|
||||
printf("Set ZTWIST to %f\n",Vis.ZTWIST ); break;
|
||||
default: {
|
||||
printf("Error unable to parse option '%s'\n",argv[i]);
|
||||
exit(0);
|
||||
}
|
||||
}
|
||||
|
||||
++i;
|
||||
}
|
||||
|
||||
|
||||
string basename = argv[i];
|
||||
if(!(basename.substr(basename.length()-4)==".ply")) {
|
||||
printf("Error: Unknown file extension %s\n",basename.c_str());
|
||||
return 1;
|
||||
}
|
||||
|
||||
// loading original mesh
|
||||
int ret=tri::io::ImporterPLY<AMesh>::Open(m,argv[i]);
|
||||
if(ret) {printf("Error unable to open mesh %s : '%s' \n",argv[i],tri::io::ImporterPLY<AMesh>::ErrorMsg(ret));exit(-1);}
|
||||
tri::UpdateNormals<AMesh>::PerVertexNormalized(m);
|
||||
tri::UpdateBounding<AMesh>::Box(m);
|
||||
tri::UpdateColor<AMesh>::VertexConstant(m,Color4b::White);
|
||||
Vis.IsClosedFlag=ClosedFlag;
|
||||
Vis.Init();
|
||||
UpdateVis();
|
||||
|
||||
printf("Mesh bbox (%f %f %f)-(%f %f %f)\n\n",
|
||||
m.bbox.min[0],m.bbox.min[1],m.bbox.min[2],
|
||||
m.bbox.max[0],m.bbox.max[1],m.bbox.max[2]);
|
||||
|
||||
OutNameMsh=(string(argv[i]).substr(0,strlen(argv[i])-4));
|
||||
OutNameMsh+="_vis.ply";
|
||||
|
||||
printf("Mesh Output filename %s\n",OutNameMsh.c_str());
|
||||
|
||||
printf("Mesh %iv %if bbox Diag %g\n",m.vn,m.fn,m.bbox.Diag());
|
||||
|
||||
glutInit(&argc, argv);
|
||||
|
||||
glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
|
||||
glutInitWindowSize(WindowRes, WindowRes);
|
||||
glutInitWindowPosition (10,10);
|
||||
glutCreateWindow ("shadevis - Visual Computing Lab - vcg.isti.cnr.it ");
|
||||
glutDisplayFunc(ViewDisplay);
|
||||
glutReshapeFunc(ViewReshape);
|
||||
glutKeyboardFunc(ViewKey);
|
||||
glutSpecialFunc(ViewSpecialKey);
|
||||
glutMouseFunc(ViewMouse);
|
||||
glutMotionFunc(ViewMouseMotion);
|
||||
|
||||
ViewInit();
|
||||
glewInit();
|
||||
glutMainLoop();
|
||||
|
||||
return(0);
|
||||
}
|
||||
Reference in new issue
Block a user