void ShapesUI::draw() {
// Sets up the viewport and background color
setup3DDrawing( Color( 0,0,0 ), width, height, true );
// Changes the way triangles are drawn
switch ( shapesUI->getDisplayType() ) {
case DISPLAY_WIREFRAME: {
glDisable(GL_LIGHTING);
glPolygonMode(GL_FRONT, GL_LINE);
glColor3f(1.0f, 1.0f, 1.0f);
} break;
case DISPLAY_FLAT_SHADING: {
glEnable(GL_LIGHTING);
glPolygonMode(GL_FRONT, GL_FILL);
glColor3f(1.0f, 1.0f, 1.0f);
glShadeModel(GL_FLAT);
} break;
case DISPLAY_SMOOTH_SHADING: {
glEnable(GL_LIGHTING);
glPolygonMode(GL_FRONT, GL_FILL);
glColor3f(1.0f, 1.0f, 1.0f);
glShadeModel(GL_SMOOTH);
} break;
default: break;
}
// Setup the camera
gluLookAt( 3.5 * cos( shapesUI->getYRot() ) * cos( shapesUI->getXRot() ),
3.5 * sin( shapesUI->getYRot() ),
3.5 * cos( shapesUI->getYRot() ) * sin( shapesUI->getXRot() ), 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
// ToDo: draw your shape here
// DO NOT put the actual draw OpenGL code here - put it in the shape class and call the draw method
if (current != 0){
if(shapesUI->getShapeType() != SHAPE_TORUS) {
current->draw();
}
else
Torus(5,5);
}
endDrawing();
}
void InteractiveUI::draw() {
setup3DDrawing( scene.getBackground(), scene.getCamera().getWidth(), scene.getCamera().getHeight(), false );
// Sets up the camera and model view matrices
glMatrixMode(GL_PROJECTION);
glLoadMatrixd( &ibar.getCamera().getProjection()(0,0) );
glMatrixMode(GL_MODELVIEW);
glLoadMatrixd( &ibar.getCamera().getWorldToCamera()(0,0) );
glPushAttrib( GL_ALL_ATTRIB_BITS );
// Start drawing at the top of the tree
scene.draw();
glPopAttrib();
if ( interactiveUI->m_bWidget->value() ) {
glEnable( GL_LIGHT0 );
widget.DrawWidget();
}
if ( interactiveUI->m_bIBar->value() )
ibar.Draw( bIsMouseOverIBar, interactiveUI->m_bIBarHelp->value() ? true : false );
endDrawing();
}
void IntersectionUI::draw() {
setup3DDrawing( Color(1,1,1), width, height, true );
glMatrixMode(GL_MODELVIEW);
gluLookAt( 3.5 * cos( intersectionUI->getYRot() ) * cos( intersectionUI->getXRot() ),
3.5 * sin( intersectionUI->getYRot() ),
3.5 * cos( intersectionUI->getYRot() ) * sin( intersectionUI->getXRot() ), 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
glDisable(GL_LIGHTING);
if ( intersectionUI->m_bGrid->value() ) {
glBegin(GL_LINES);
// draw grid
glColor3f(0.0f, 0.0f, 0.0f);
for (int i = 0; i <= 10; i++) {
float s = -2.0f + i / 2.5f;
glVertex3f(s, 0.0f, -2.0f);
glVertex3f(s, 0.0f, 2.0f);
glVertex3f(-2.0f, 0.0f, s);
glVertex3f( 2.0f, 0.0f, s);
}
glEnd();
// draw (X,Y,Z) axes
glLineWidth(3.0f);
glBegin(GL_LINES);
glColor3f(1.0f, 0.0f, 0.0f);
glVertex3f(-2.0f, 0.0f, 0.0f);
glVertex3f( 2.0f, 0.0f, 0.0f);
glColor3f(0.0f, 1.0f, 0.0f);
glVertex3f(0.0f, -2.0f, 0.0f);
glVertex3f(0.0f, 2.0f, 0.0f);
glColor3f(0.0f, 0.0f, 1.0f);
glVertex3f(0.0f, 0.0f, -2.0f);
glVertex3f(0.0f, 0.0f, 2.0f);
glEnd();
glLineWidth(1.0f);
}
// compute ray origin from parameters
Point3 pAt( intersectionUI->m_dXAt->value(), intersectionUI->m_dYAt->value(), intersectionUI->m_dZAt->value() );
// compute ray direction from parameters
Vector3 dir;
dir[0] = cos(intersectionUI->getPhi()) * cos(intersectionUI->getTheta());
dir[1] = sin(intersectionUI->getPhi());
dir[2] = cos(intersectionUI->getPhi()) * sin(intersectionUI->getTheta());
const Point3 pE1 = pAt - dir * 2.0;
const Point3 pE2 = pAt + dir * 2.0;
if (intersectionUI->m_bRay->value()) {
glPointSize(6.0f);
glLineWidth(3.0f);
glColor3f(0.5f, 0.5f, 0.0f);
glBegin(GL_POINTS);
glVertex3dv( &pE1[0]);
glEnd();
glColor3f(0.5f, 0.0f, 0.5f);
glBegin(GL_LINES);
glVertex3dv( &pE1[0]);
glVertex3dv( &pE2[0]);
glEnd();
glLineWidth(1.0f);
glPointSize(1.0f);
}
if (intersectionUI->m_bRayShadow->value()) {
glPointSize(6.0f);
glLineWidth(2.0f);
glColor3f(0.1f, 0.1f, 0.0f);
glBegin(GL_POINTS);
glVertex3d( pE1[0], 0.0, pE1[2] );
glEnd();
glColor3f(0.0f, 0.0f, 0.0f);
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xF0F0);
glBegin(GL_LINES);
glVertex3d( pE1[0], 0.0, pE1[2] );
glVertex3d( pE2[0], 0.0, pE2[2] );
glVertex3d( pE1[0], 0.0, pE1[2] );
glVertex3dv( &pE1[0]);
glVertex3d( pE2[0], 0.0, pE2[2] );
glVertex3dv( &pE2[0]);
glEnd();
glLineWidth(1.0f);
glPointSize(1.0f);
glDisable(GL_LINE_STIPPLE);
}
glEnable(GL_LIGHTING);
glEnable( GL_BLEND );
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
const float colPlane[4] = {0.5, 0.5, 0.75, 0.5};
const float colObj[4] = {0.5, 0.25, 0.25, 0.5};
glColor4fv( colPlane );
glMaterialfv(GL_FRONT, GL_DIFFUSE , colPlane);
glBegin( GL_POLYGON );
glVertex3f( -2.0, 0.0, -2.0 );
glVertex3f( 2.0, 0.0, -2.0 );
glVertex3f( 2.0, 0.0, 2.0 );
glVertex3f( -2.0, 0.0, 2.0 );
glEnd();
glBegin( GL_POLYGON );
glVertex3f( -2.0, 0.0001f, -2.0 );
glVertex3f( -2.0, 0.0001f, 2.0 );
glVertex3f( 2.0, 0.0001f, 2.0 );
glVertex3f( 2.0, 0.0001f, -2.0 );
glEnd();
glColor4fv( colObj );
glMaterialfv(GL_FRONT, GL_DIFFUSE , colObj);
glMaterialfv(GL_FRONT, GL_SPECULAR, colObj);
// ToDo: draw your shape here and perform the intersection
// then call drawHits so you can see where the ray has hit the shape
// the origin is in variable 'p' and direction in variable 'dir'
shape->DrawTriangles();
//Call HitRecord hr = intersect(pE1, dir);
HitRecord *hr = shape->intersect(pE1, dir);
drawHits(*hr);
endDrawing();
}
