public static double diffuse(ObjectR o, Point p, Light l) {
double[] norm = calc.normalize(o.normal(p));
double[] light = calc.normalize(calc.sub(l.dim, p.coord));
double factor = calc.dot(norm, light);
factor = Math.max(factor, 0);
return o.kd() * factor + o.ka();
}
public static double specular(ObjectR o, Point p, Light l, Camera c) {
double[] norm = calc.normalize(o.normal(p));
double[] eye = calc.normalize(calc.sub(c.point.coord, p.coord));
double[] light = calc.normalize(calc.sub(l.dim, p.coord));
double[] h = calc.normalize(calc.add(eye, light));
double factor = calc.dot(norm, h);
factor = Math.max(factor, 0);
return o.ks() * Math.pow(factor, o.n());
}
