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added vertigo effect and moveable near clip plane

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This commit is contained in:
Paolo Cignoni cignoni 2006-01-12 22:14:39 +00:00
parent 0455e20582
commit e82e573a62
2 changed files with 110 additions and 63 deletions
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153
src/meshlab/glarea.cpp
View File

@ -24,11 +24,8 @@
History
$Log$
Revision 1.67 2006/01/12 11:00:07 cignoni
Better Management of deallocation of memory
Revision 1.66 2006/01/11 20:47:51 mariolatronico
ButtonPressed::KEY_SHIFT -> KEY_SHIFT in wheelEvent()
Revision 1.68 2006/01/12 22:14:39 alemochi
added vertigo effect and moveable near clip plane
Revision 1.65 2006/01/10 16:29:29 alemochi
now background and panel info not move with fov
@ -272,7 +269,6 @@ using namespace vcg;
GLArea::GLArea(QWidget *parent)
: QGLWidget(parent)
{
setAttribute(Qt::WA_DeleteOnClose,true);
iRenderer=0; //Shader support
iDecoratorsList=0;
currentTime=0;
@ -289,9 +285,11 @@ GLArea::GLArea(QWidget *parent)
currentSharder = NULL;
lastFilterRef = NULL;
time.start();
currentButton=0;
objDist=3.0;
currLogLevel = -1;
mm=0;
currentButton=GLArea::BUTTON_NONE;
clipRatioFar=1;
clipRatioNear=1;
}
@ -306,7 +304,8 @@ void GLArea::displayModelInfo()
renderText(currentWidth-currentWidth*0.15,currentHeight-45,strVertex);
renderText(currentWidth-currentWidth*0.15,currentHeight-30,strTriangle);
renderText(currentWidth-currentWidth*0.15,currentHeight-70,QString("Fov ")+QString::number((int)fov,10));
QString strNear=QString("Near: %1").arg(clipRatioNear,7,'f',1);
renderText(currentWidth-currentWidth*0.15,currentHeight-80,strNear);
}
QSize GLArea::minimumSizeHint() const {return QSize(400,300);}
@ -418,6 +417,8 @@ void GLArea::myGluPerspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GL
top = fTop - yOff;
glFrustum(left, right, bottom, top, zNear, zFar);
}
@ -428,19 +429,18 @@ void GLArea::paintGL()
initTexture();
glClearColor(1.0,1.0,1.0,0.0); //vannini: alpha was 1.0
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
gluLookAt(0,0,3, 0,0,0, 0,1,0);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(60,(GLdouble) vpWidth / (GLdouble) vpHeight, 0.2, 5);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0,0,3, 0,0,0 ,0,1,0);
glPushMatrix();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60,(float)vpWidth/vpHeight,0.2,5);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
if (!takeSnapTile)
{
// == Background
glPushMatrix();
glLoadIdentity();
glPushAttrib(GL_ENABLE_BIT);
@ -451,27 +451,38 @@ void GLArea::paintGL()
glColor(cs.bColorBottom); glVertex3f(-4.f,-4.f,-1.f);
glColor(cs.bColorTop); glVertex3f( 4.f, 4.f,-1.f);
glColor(cs.bColorBottom); glVertex3f( 4.f,-4.f,-1.f);
glEnd();
glEnd();
glPopAttrib();
glPopMatrix();
// ==
}
double m[16];
Matrix44d modelview1; // Take glLookAt(.....)
glGetDoublev(GL_MODELVIEW_MATRIX, m);
modelview1.Import(Matrix44d(m));
Transpose(modelview1);
glColor3f(1.f,1.f,1.f);
trackball.center=Point3f(0, 0, 0);
trackball.radius= 1;
trackball.GetView();
trackball.Apply(trackBallVisible && !takeSnapTile);
Matrix44d modelview2; // Take gluLookAt*Apply Matrix
glGetDoublev(GL_MODELVIEW_MATRIX, m);
modelview2.Import(Matrix44d(m));
Transpose(modelview2);
Matrix44d modelview1Inv;
modelview1Inv.SetIdentity();
modelview1Inv=Inverse(modelview1);
Matrix44d m_apply=modelview1Inv*modelview2; // Get Apply matrix
// Setting camera e projection
setVertigoCamera();
glMultMatrix(m_apply);
float d=2.0f/mm->cm.bbox.Diag();
glScale(d);
glTranslate(-mm->cm.bbox.Center());
setLightModel();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
setLightModel();
// Modify frustum...
if (takeSnapTile)
@ -497,20 +508,8 @@ void GLArea::paintGL()
}
if (!takeSnapTile)
{
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(fov,(GLdouble) vpWidth / (GLdouble) vpHeight, 0.2, 5);
mm->Render(rm.drawMode,rm.colorMode,rm.textureMode);
glPopMatrix();
}
else mm->Render(rm.drawMode,rm.colorMode,rm.textureMode);
glMatrixMode(GL_MODELVIEW);
mm->Render(rm.drawMode,rm.colorMode,rm.textureMode);
if(iRenderer) {
glUseProgramObjectARB(0);
}
@ -521,6 +520,12 @@ void GLArea::paintGL()
}
// ...and take a snapshot
glMatrixMode(GL_PROJECTION); // restore fix projection matrix
glPopMatrix();
glMatrixMode(GL_MODELVIEW); // restore fix viewpoint
glPopMatrix();
if (takeSnapTile)
{
glPushAttrib(GL_ENABLE_BIT);
@ -620,18 +625,17 @@ Trackball::Button QT2VCG(Qt::MouseButton qtbt, Qt::KeyboardModifiers modifiers)
void GLArea::keyPressEvent ( QKeyEvent * e )
{
//currentButton=GLArea::BUTTON_NONE;
if (e->key ()==Qt::Key_Shift) { currentButton|=GLArea::KEY_SHIFT; qDebug("Pressed Qt::Key_Shift %0x",currentButton);}
if (e->key ()==Qt::Key_Control) { currentButton|=GLArea::KEY_CTRL; qDebug("Pressed Qt::Key_Control %0x",currentButton);}
if (e->key ()==Qt::Key_Alt) { currentButton|=GLArea::KEY_ALT; qDebug("Pressed Qt::Key_Alt %0x",currentButton);}
if (e->key ()==Qt::Key_Shift) currentButton|=GLArea::KEY_SHIFT;
if (e->key ()==Qt::Key_Control) currentButton|=GLArea::KEY_CTRL;
if (e->key ()==Qt::Key_Alt) currentButton|=GLArea::KEY_ALT;
}
void GLArea::keyReleaseEvent ( QKeyEvent * e )
{
if (e->key()==Qt::Key_Shift) {currentButton &= (~GLArea::KEY_SHIFT); qDebug("Released Qt::Key_Shift %0x",currentButton);}
if (e->key()==Qt::Key_Control){currentButton &= (~GLArea::KEY_CTRL); qDebug("Released Qt::Key_Control %0x",currentButton);}
if (e->key()==Qt::Key_Alt) {currentButton &= (~GLArea::KEY_ALT); qDebug("Released Qt::Key_Alt %0x",currentButton);}
if (e->key()==Qt::Key_Shift) currentButton-=GLArea::KEY_SHIFT;
if (e->key()==Qt::Key_Control) currentButton-=GLArea::KEY_CTRL;
if (e->key()==Qt::Key_Alt) currentButton-=GLArea::KEY_ALT;
}
void GLArea::mousePressEvent(QMouseEvent*e)
{
@ -660,18 +664,24 @@ void GLArea::mouseReleaseEvent(QMouseEvent*e)
void GLArea::wheelEvent(QWheelEvent*e)
{
const int WHEEL_DELTA =120;
if (currentButton & KEY_SHIFT)
if (currentButton & ButtonPressed::KEY_SHIFT)
{
if (currentButton & ButtonPressed::KEY_CTRL)
{
clipRatioNear-=(e->delta()/ float(WHEEL_DELTA))/10;
updateGL();
}
else
{
fov+= e->delta()/ float(WHEEL_DELTA);
updateGL();
}
}
else
{
trackball.MouseWheel( e->delta()/ float(WHEEL_DELTA) );
}
else trackball.MouseWheel( e->delta()/ float(WHEEL_DELTA) );
update();
}
}
void GLArea::setDrawMode(vcg::GLW::DrawMode mode)
{
@ -795,6 +805,35 @@ void GLArea::setSnapshotSetting(const SnapshotSetting & s)
ss=s;
}
void GLArea::setVertigoCamera()
{
GLfloat ClipRatio=1;
GLfloat fAspect = (GLfloat)vpWidth/ vpHeight;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Si deve mettere la camera ad una distanza che inquadri la sfera unitaria bene.
float y=sin(vcg::math::ToRad(fov/2.0));
float x=cos(vcg::math::ToRad(fov/2.0));
objDist= 1.5*(x*1.0/y);
float nearv = objDist - 2.0*clipRatioNear;
float farv = objDist + 2.0*clipRatioFar;
if(nearv<=objDist/10.0) nearv=objDist/10.0;
if(fov==5)
{
glOrtho(-1.5*fAspect,1.5*fAspect,-1.5,1.5,- 2.0*clipRatioNear, 2.0*clipRatioFar);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
else
{
gluPerspective(fov, fAspect, nearv, farv);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0, 0, objDist,0, 0, 0, 0, 1, 0);
}
}
void GLArea::updateFps()
{
static int j=0;

20
src/meshlab/glarea.h
View File

@ -24,8 +24,8 @@
History
$Log$
Revision 1.44 2006/01/12 11:00:07 cignoni
Better Management of deallocation of memory
Revision 1.45 2006/01/12 22:14:39 alemochi
added vertigo effect and moveable near clip plane
Revision 1.43 2006/01/09 18:31:18 alemochi
Fov, work in progress.....
@ -190,6 +190,13 @@ First rough version. It simply load a mesh.
#include <QGLWidget>
#include <QTime>
#include <QtGui>
#include <vcg/space/point3.h>
#include <vcg/space/plane3.h>
#include <vcg/space/line3.h>
#include <vcg/math/matrix44.h>
#include <vcg/math/matrix44.h>
#include <wrap/gl/math.h>
//#include <../wrap/gl/math.h>
#include "GLLogStream.h"
@ -269,10 +276,7 @@ class GLArea : public QGLWidget
public:
GLArea(QWidget *parent = 0);
~GLArea(){
qDebug("Destructing glarea");
if(mm) delete mm;
}
~GLArea(){}
enum ButtonPressed { BUTTON_NONE = 0x0000,
WHEEL = 0x0008,
@ -324,6 +328,7 @@ public:
void setLightMode(bool state,LightingModel lmode);
void saveSnapshot();
void setLightModel();
void setVertigoCamera();
void resetTrackBall();
list<pair<QAction *,MeshDecorateInterface *> > *iDecoratorsList;
@ -366,6 +371,9 @@ private:
int currentButton;
float cfps;
float fov;
float objDist;
float clipRatioFar;
float clipRatioNear;
QTime time;
int deltaTime;
int lastTime;