public List<Double> calculate(List<Vector3> points) {
List<Double> result = new ArrayList<>();
for (Vector3 p : points) {
double x = p.get(0);
double y = p.get(1);
double z = p.get(2);
result.add(x * x + y * y + z * z - this.radius * this.radius);
}
return result;
}
@Override
public RayData sample(Vector3 startPoint, Vector3 endPoint) {
Vector3 direction = startPoint.subtract(endPoint).normalizeM();
RayData rdata =
new RayData(
new Ray(startPoint, direction, 0, 0),
Constants.RECURSIVE_EPSILON,
Double.POSITIVE_INFINITY);
return rdata;
}
public ChestLight(GL2 gl) {
super(new SceneGraphNode(gl));
SceneGraphNode twister = root.createAttachedNode();
twister
.createAttachedNode()
.attachRenderable(new Cuboid(gl, Vector3.one(), Materials.get().get("shinymetal")))
.setPosition(new Vector3(-0.5f, -0.31f, -0.1f))
.setScaling(new Vector3(1, 0.5f, 1));
chestLight =
twister
.createAttachedNode()
.attachRenderable(new Plane(gl, Materials.get().get("chest_light")))
.setRotation(new Vector3(1, 0, 0), 90)
.setPosition(new Vector3(-1, -0.6f, -0.6f));
Robot.CHEST_LIGHT = this;
twister.setRotation(new Vector3(0, 1, 0), 90);
twister.setPosition(new Vector3(-0.5f, 0, -0.5f));
}
private void trace(
Vector3 src,
Vector3 direction,
photonColor photon,
int recursion_left,
double refractive_indice) {
Geometry geom = Geometry.visible(src, direction, geometries);
// Going off into space, no collision.
if (geom == null) {
return;
// throw new Error("Not possible, because we surround the scene with impermeable walls.");
}
Vector3 dest = geom.computeIntersectionPoint();
// Add the light.
double attenuation = add_light_line(src.getX(), src.getY(), dest.getX(), dest.getY(), photon);
// FIXME : Implement reflectance, transmittance / refraction.
// 100 % absorption right now.
Material mat = geom.material;
// Base Case.
if (recursion_left < 1) {
return;
}
// Recursive photon Bouncing.
// Diffuse.
Vector3 normal = geom.getNormal();
// Make sure the normal is not the wrong direction.
if (normal.dot(direction) > 0) {
normal = normal.mult(-1);
}
Bounce_Type val = mat.getWeightedBounceEvent();
switch (val) {
case DIFFUSE:
Vector3 diffuse_bounce_dir = Vector_math.random_hemi_2D(normal);
photonColor photon_new = photon.mult(attenuation).mult(mat.diffuse);
trace(
dest.add(diffuse_bounce_dir.mult(epsilon)),
diffuse_bounce_dir,
photon_new,
recursion_left - 1,
refractive_indice);
break;
case SPECULAR:
photon_new = photon.mult(attenuation).mult(mat.specular);
Vector3 specular_bounce_dir = geom.getReflectionDirection();
trace(
dest.add(normal.mult(epsilon)),
specular_bounce_dir,
photon_new,
recursion_left - 1,
refractive_indice);
break;
case TRANSMISSION:
Vector3 refracted_bounce_dir = geom.refract(refractive_indice);
// Total Internal Reflection.
if (refracted_bounce_dir == null) {
return;
}
photon_new = photon.mult(attenuation).mult(mat.transmission);
double bounce_refraction_indice = geom.getNextRefractiveIndex(refractive_indice);
trace(
dest.add(refracted_bounce_dir.mult(epsilon)),
refracted_bounce_dir,
photon_new,
recursion_left - 1,
bounce_refraction_indice);
break;
}
return;
}
