Ray Tracer problem - don't know what's happening

void Scene::createCameraRays(){        double origin[3] = {*(eye->getPosition()), *(eye->getPosition()+1), *(eye->getPosition()+2)};	double dir[3] = {0, 0, 0};	cout << "ray origin: " << origin[0] << " " << origin[1] << " " << origin[2] << endl;	double z = 0; //as long as z = 0, we don`t worry about this one	double x, y; //values for the direction of the new Ray	int factor = 1; // determines how many rays there will be for each coordinate position		int xFac = sizeX*factor;//set number of rays created according to desired resolution.	int yFac = sizeY*factor;	double paceX = sizeX/(orthoX1 - orthoX0);//	double paceY = sizeY/(orthoY1 - orthoY0);//	double numX = (orthoX1 - orthoX0) / (xFac);	//value to be multiplied 	double numY = (orthoY0 - orthoY1) / (yFac);  //acoording to index increment	for(int i = 0; i < yFac; i++)	{		y = (orthoY1 + (i * numY));		for (int j = 0; j < xFac; j++)		{			x =(orthoX0 + (j * numX));			dir[0] = x - origin[0];			dir[1] = y - origin[1]; //Ray vectors are created 			dir[2] = z - origin[2]; //and normalized			 			//cout << dir[0] << " " << dir[1] << " " << dir[2] << endl;			calc->normalize(dir);			//cout << dir[0] << " " << dir[1] << " " << dir[2] << endl;					//cout << x << " " << y << endl;			createSingleRay(origin, dir);		}	}}

void Scene::createSingleRay(double *orig, double *d){	int quadricsVec = gina.size();	int lightsVec = lights.size();	ray = new Ray(orig, d);	int zM;	double val, min = 15000;	double zPoint;	bool hit = false;	double t;			for (int i=0 ; i < quadricsVec; i++)	{		t = ray->checkIntersection(gina.at(i));		if(t != -1)			{					zPoint = ray->getZ0() + (*(ray->getDirection()+2) * t);			val = zLength(ray, zPoint);			if (val < min)			{				min = val;				zM = i;				ray->calcIntersectionPoint();				ray->calcIntersectionNormal();				calc->normalize(ray->getIntersectionNormal());				hit = true;			}					}	}	if (hit)	{		ray->calcAmbient(ambient, gina.at(zM));					castShadowRays(ray, gina.at(zM));		rays.push_back(ray);		return;	}	else	{			ray->setRgbValue(getBackGroundColor());		rays.push_back(ray);	}}void Scene::castShadowRays(Ray *r, Quadric *quad){	double dir[3];	double check, dot;	bool hit = false;		for (int i =0; i<lights.size(); i++)	{		dir[0] = *(lights.at(i)->getPosition()+0) - *(r->getIntersectionPoint()+0);		dir[1] = *(lights.at(i)->getPosition()+1) - *(r->getIntersectionPoint()+1);		dir[2] = *(lights.at(i)->getPosition()+2) - *(r->getIntersectionPoint()+2);		calc->normalize(dir);		Ray *sRay = new Ray(r->getIntersectionPoint(), dir);		for (int j = 0; j < gina.size(); j++)		{			check = sRay->checkIntersection(gina.at(j));			if (check != -1)			{				hit = true;			}		}				if(hit == false)		{			dot = calc->dotProduct(sRay->getDirection(), r->getIntersectionNormal());			if (dot > 0.0)				r->calcDifuse(lights.at(i), quad, dot);		}								}}