protected Colour shadeHit(Ray ray, Intersection inter) {
Colour colourD = inter.getBestHitMaterial().diffuse;
Colour colourC = inter.getBestHitMaterial().ambient;
float R = 0;
float G = 0;
float B = 0;
for (Light light : scene.getLights()) {
Vector norms = light.pos.subtract(inter.getBestHitPoint());
norms.normalize();
Vector normm = inter.getBestHitNormal();
float t = norms.dot(normm);
if (t > 0) {
R += ((colourD.r * light.colour.r * t) + (colourC.r * light.colour.r));
G += ((colourD.g * light.colour.g * t) + (colourC.g * light.colour.g));
B += ((colourD.b * light.colour.b * t) + (colourC.b * light.colour.b));
} else {
R += (colourC.r * light.colour.r);
G += (colourC.g * light.colour.g);
B += (colourC.b * light.colour.b);
}
}
return new Colour(R, G, B);
}
@Override
protected Colour shadeHit(Ray ray, Intersection inter) {
Colour colourD = inter.getBestHitMaterial().diffuse;
Colour colourC = inter.getBestHitMaterial().ambient;
float R = 0;
float G = 0;
float B = 0;
Point start = inter.getBestHitPoint();
Vector temp = new Vector(inter.getBestHitNormal());
start.add(temp);
Ray shadowfeeler = new Ray(start);
for (Light light : scene.getLights()) {
R += (colourC.r * light.colour.r);
G += (colourC.g * light.colour.g);
B += (colourC.b * light.colour.b);
Vector dir = light.pos.subtract(start);
shadowfeeler.dir = dir;
if (!isInShadow(shadowfeeler)) {
Vector norms = light.pos.subtract(inter.getBestHitPoint());
norms.normalize();
Vector normm = inter.getBestHitNormal();
float t = norms.dot(normm);
if (t > 0) {
R += (colourD.r * light.colour.r * t);
G += (colourD.g * light.colour.g * t);
B += (colourD.b * light.colour.b * t);
}
}
}
if (this.recursionDepth <= this.maxRecursionDepth
&& inter.getBestHitMaterial().reflectivity >= 0.1) {
Ray reflRay = this.computeReflectedRay(ray, inter); // Maybe change to start later on
Colour col = this.shade(reflRay);
R += col.r * inter.getBestHitMaterial().reflectivity;
G += col.g * inter.getBestHitMaterial().reflectivity;
B += col.b * inter.getBestHitMaterial().reflectivity;
}
return new Colour(R, G, B);
}
private Ray computeReflectedRay(Ray ray, Intersection best) {
Vector m = best.getBestHitNormal();
Vector d = ray.dir;
Vector r = d.substract(m.multV(d.dot(m) * 2));
return new Ray(best.getBestHitPoint(), r);
}
