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Added MapFalseColor

This commit is contained in:
Paolo Cignoni 2004-09-28 09:46:51 +00:00
parent d911f4b1d1
commit 37dd22cc79
2 changed files with 39 additions and 7 deletions
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21
apps/shadevis/shadevis.cpp
View File

@ -24,6 +24,9 @@
History
$Log: not supported by cvs2svn $
Revision 1.6 2004/09/16 14:08:35 ponchio
gamma is a math function.
Revision 1.5 2004/09/10 14:02:20 cignoni
Added Cone directions
@ -52,7 +55,7 @@ Added GPL comments
#include <wrap/gui/trackball.h>
#include <vcg/simplex/vertex/with/vcvn.h>
#include <vcg/simplex/vertex/with/vcvn.h>
#include <vcg/simplex/face/with/fcfn.h>
#include <vcg/simplex/face/with/fn.h>
#include <vcg/space/index/grid_static_ptr.h>
#include <vcg/complex/trimesh/base.h>
#include<wrap/io_trimesh/export_ply.h>
@ -72,7 +75,7 @@ using namespace std;
class MyEdge;
class AFace;
class AVertex : public VertexVCVN< float ,MyEdge,AFace > {};
class AFace : public FaceFCFN< AVertex,MyEdge,AFace > {};
class AFace : public FaceFN< AVertex,MyEdge,AFace > {};
class AMesh : public tri::TriMesh< vector<AVertex>, vector<AFace> > {};
///////// Global ////////
@ -92,6 +95,7 @@ float ambi=.2;
bool LightFlag=true;
bool ColorFlag=true;
bool FalseColorFlag=false;
bool ShowDirFlag=false;
int imgcnt=0;
@ -240,7 +244,8 @@ void ViewDisplay (void)
else glDisable(GL_LIGHTING);
if(ColorFlag) glEnable(GL_COLOR_MATERIAL);
else glDisable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT,GL_AMBIENT);
if(FalseColorFlag) glColorMaterial(GL_FRONT,GL_DIFFUSE);
else glColorMaterial(GL_FRONT,GL_AMBIENT);
glMateriali(GL_FRONT,GL_SHININESS,0);
float spec[4]={0,0,0,1};
float ambientV[4]={ambi,ambi,ambi,1};
@ -265,8 +270,9 @@ void ViewSpecialKey(int , int , int )
void Toggle(bool &flag) {flag = !flag;}
void UpdateVis()
{
if(LightFlag) Vis.MapVisibility(gamma_correction,lopass,hipass,ambi);
if(!LightFlag) Vis.MapVisibility(gamma_correction,lopass,hipass,1.0);
if( LightFlag && !FalseColorFlag) Vis.MapVisibility(gamma_correction,lopass,hipass,ambi);
if(!LightFlag && !FalseColorFlag) Vis.MapVisibility(gamma_correction,lopass,hipass,1.0);
if(FalseColorFlag) Vis.MapFalseColor();
}
/*********************************************************************/
/*********************************************************************/
@ -346,6 +352,8 @@ void ViewKey(unsigned char key, int , int )
break;
case 'C' : LightFlag = !LightFlag; printf("Toggled Light %s\n",LightFlag?"on":"off"); UpdateVis(); break;
case 'c' : ColorFlag = !ColorFlag; printf("Toggled Color %s\n",ColorFlag?"on":"off"); break;
case 'f' : FalseColorFlag = !FalseColorFlag; printf("Toggled FalseColor %s\n",ColorFlag?"on":"off"); UpdateVis(); break;
case '1' : diff=0.80f; ambi=0.10f; gamma_correction=1.0; lopass=0.00f; hipass=1.00f; ColorFlag=false; UpdateVis(); break;
case '2' : diff=0.65f; ambi=0.30f; gamma_correction=1.0; lopass=0.15f; hipass=0.80f; ColorFlag=true; UpdateVis(); break;
case '3' : diff=0.45f; ambi=0.50f; gamma_correction=1.0; lopass=0.20f; hipass=0.75f; ColorFlag=true; UpdateVis(); break;
@ -453,7 +461,8 @@ int main(int argc, char** argv)
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') { ConeDir = Point3f(atof(argv[i+1]),atof(argv[i+2]),atof(argv[i+3])); i+=3; break; }
if(argv[i][2] == 'v') { ConeDir = Normalize(Point3f(atof(argv[i+1]),atof(argv[i+2]),atof(argv[i+3]))); 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;

25
apps/shadevis/visshader.h
View File

@ -24,6 +24,9 @@
History
$Log: not supported by cvs2svn $
Revision 1.7 2004/09/16 14:23:57 ponchio
fixed gcc template compatibility issues.
Revision 1.6 2004/09/10 14:02:20 cignoni
Added Cone directions
@ -482,13 +485,33 @@ void SmoothVisibility()
for(unsigned int i=0;i<VV2.size();++i)
VV[i]=VV2[i]/VC[i];
}
void MapFalseColor()
{
float minv=*min_element(VV.begin(),VV.end());
float maxv=*max_element(VV.begin(),VV.end());
printf("Visibility Range %f %f\n", minv,maxv);
MapFalseColor(minv, maxv);
}
void MapFalseColor(float minv, float maxv)
{
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi){
float gval=(VV[vi-m.vert.begin()]-minv)/(maxv-minv);
math::Clamp(gval,0.0f,1.0f);
(*vi).C().ColorRamp(1.0,0.0,gval);
}
}
/*
The visibility is mapped in [0..1]
then clamped to [low,high]
this value is mapped again in [0.1] and gamma corrected;
and at the end is scaled for 'Scale'
*/
void MapVisibility(float Gamma=1, float LowPass=0, float HighPass=1, float Scale= 1.0)
{
float minv=*min_element(VV.begin(),VV.end());