vec4 Scene::processHitListAndGetColor()
{
#ifdef _DEBUG_SCENE
if (mHitList.size() == 0) {
std::cout << "\n+++++++++++++++++++++++++++++++++++++++++++++++++++\n";
std::cout << "\nFrom: " << __FILE__;
std::cout << "\n HitList is zero!";
std::cout << "\n+++++++++++++++++++++++++++++++++++++++++++++++++++\n";
}
#endif
if (mHitList.size() == 0)
return vec4(0.5, 0.5, 0.5, 0.0);
// TODO: Do some calculations and get a color
Hit winHit;
double min = 0xFFFFFFFF;
for (int i = 0; i < mHitList.size(); i++) {
if (mHitList[i].intersectDis < min) {
winHit.obj = mHitList[i].obj;
winHit.intersectDis = mHitList[i].intersectDis;
winHit.intersectPoint = mHitList[i].intersectPoint;
min = winHit.intersectDis;
}
}
#ifdef _DEBUG_SCENE
std::cout << "\nWinning object: " << OBJ_STR[winHit.obj->getObjectType()];
std::cout << "\nReturning color:";
#endif
return lightScene(winHit);
}
void DebuggingView::draw()
{
if (!valid())
{
glShadeModel( GL_SMOOTH );
glEnable( GL_DEPTH_TEST );
glEnable( GL_LIGHTING );
glEnable( GL_LIGHT0 );
glEnable( GL_LIGHT1 );
glEnable( GL_NORMALIZE );
}
glViewport( 0, 0, w(), h() );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30.0,-float(w())/float(h()),1.0,100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_camera->applyViewingTransform();
// Need to apply an extra transform so that our camera 'approximately'
// lines up with the scene camera, initially, and to correct for our
// definition of "up."
{
Vec3d uAxis = raytracer->getScene().getCamera().getU();
Vec3d vAxis = raytracer->getScene().getCamera().getV();
Vec3d wAxis = uAxis ^ vAxis;
uAxis = wAxis ^ vAxis;
uAxis.normalize();
vAxis.normalize();
wAxis.normalize();
GLdouble rotMat[16];
rotMat[0] = uAxis[0];
rotMat[1] = vAxis[0];
rotMat[2] = wAxis[0];
rotMat[3] = 0.0;
rotMat[4] = uAxis[1];
rotMat[5] = vAxis[1];
rotMat[6] = wAxis[1];
rotMat[7] = 0.0;
rotMat[8] = uAxis[2];
rotMat[9] = vAxis[2];
rotMat[10] = wAxis[2];
rotMat[11] = 0.0;
rotMat[12] = 0.0;
rotMat[13] = 0.0;
rotMat[14] = 0.0;
rotMat[15] = 1.0;
glMultMatrixd( rotMat );
}
if( m_showAxes )
drawAxes();
if( raytracer == 0 || !raytracer->sceneLoaded() )
return;
if( m_showLights )
drawLights();
if( m_showGeometry )
{
lightScene();
drawScene();
}
drawRays();
if( m_showCamera )
drawCamera();
}
