public void TestQuickRayIntersection()
{
Sphere s1 = new Sphere();
Sphere s2 = new Sphere(Transformation.Translation(new Vec(0.0f, 1.7f, 0.0f)));
CSGUnion u1 = new CSGUnion(s1, s2);
Ray ray1 = new Ray(origin: new Point(3f, 0f, 0f), dir: -Constant.VEC_X);
Assert.True(u1.quickRayIntersection(ray1), "TestQuickRayIntersection failed! - Assert 1/5");
Ray ray2 = new Ray(new Point(6f, 1.7f, 0f), -Constant.VEC_X);
Assert.True(u1.quickRayIntersection(ray2), "TestQuickRayIntersection failed! - Assert 2/5");
Assert.False(u1.quickRayIntersection(new Ray(new Point(0f, 10f, 2f), -Constant.VEC_Z)), "TestQuickRayIntersection failed! - Assert 3/5 ");
Sphere s3 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
CSGUnion u2 = new CSGUnion(s1, s2);
Ray ray3 = new Ray(origin: new Point(0.5f, 0f, 0f), dir: Constant.VEC_X);
Assert.True(u2.quickRayIntersection(ray3), "TestQuickRayIntersection failed! - Assert 4/5");
// now from the other side
Ray ray4 = new Ray(origin: new Point(0.5f, 0f, 0f), dir: -Constant.VEC_X);
Assert.True(u2.quickRayIntersection(ray4), "TestQuickRayIntersection failed! - Assert 5/5");
}
public void TestrayIntersectionList()
{
Sphere s1 = new Sphere();
Sphere s2 = new Sphere(Transformation.Translation(new Vec(0.0f, 0.5f, 0.0f)));
CSGUnion u1 = new CSGUnion(s1, s2);
Ray r = new Ray(origin: new Point(0.0f, 2.0f, 0f), dir: -Constant.VEC_Y);
Assert.True(u1.rayIntersection(r) != null, "TestHit failed! - Assert 1/2");
List <HitRecord?> intersection = u1.rayIntersectionList(r);
List <HitRecord> hits = new List <HitRecord>();
hits.Add(new HitRecord(
new Point(0.0f, -1.0f, 0f),
new Normal(0.0f, 1.0f, 0f),
new Vec2D(0.75f, 0.5f),
3.0f,
r)
);
hits.Add(new HitRecord(
new Point(0.0f, 1.5f, 0f),
new Normal(0.0f, 1.0f, 0f),
new Vec2D(0.25f, 0.5f),
0.5f,
r)
);
hits.Sort();
for (int i = 0; i < 2; i++)
{
Assert.True(hits[i].isClose((HitRecord)intersection[i]), "TestRayIntersectionList failed - assert 2/2");
}
}
public void TestisPointInside()
{
Sphere s1 = new Sphere();
Sphere s2 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
CSGUnion u1 = new CSGUnion(s1, s2);
Point p1 = new Point(0.25f, 0f, 0f);
Point p2 = new Point(-0.75f, 0f, 0f);
Point p3 = new Point(1.25f, 0f, 0f);
Point p4 = new Point(0.25f, 0.999f, 0f);
Point p5 = new Point(-56789f, 0f, 0f);
Assert.True(u1.isPointInside(p1), "TestisPointInside failed - assert 1/4");
Assert.True(u1.isPointInside(p2), "TestisPointInside failed - assert 2/4");
Assert.True(u1.isPointInside(p3), "TestisPointInside failed - assert 3/4");
Assert.False(u1.isPointInside(p4), "TestisPointInside failed - assert 4/4");
Assert.False(u1.isPointInside(p5), "TestisPointInside failed - assert 5/4");
}
public void TestrayIntersctionInner()
{
Sphere s1 = new Sphere();
Sphere s2 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
CSGUnion u1 = new CSGUnion(s1, s2);
Ray ray1 = new Ray(origin: new Point(0.5f, 0f, 0f), dir: Constant.VEC_X);
HitRecord?intersection1 = u1.rayIntersection(ray1);
Assert.True(intersection1 != null, "TestInnerHit failed! - Assert 1/4");
HitRecord hit1 = new HitRecord(
new Point(1.5f, 0.0f, 0.0f),
new Normal(-1.0f, 0.0f, 0.0f),
new Vec2D(0.0f, 0.5f),
1.0f,
ray1
);
Assert.True(hit1.isClose(intersection1), "TestInnerHit failed! - Assert 2/4");
// now from the other side
Ray ray2 = new Ray(origin: new Point(0.5f, 0f, 0f), dir: -Constant.VEC_X);
HitRecord?intersection2 = u1.rayIntersection(ray2);
Assert.True(intersection2 != null, "TestInnerHit failed! - Assert 3/4");
HitRecord hit2 = new HitRecord(
new Point(-1.0f, 0.0f, 0.0f),
new Normal(1.0f, 0.0f, 0.0f),
new Vec2D(0.5f, 0.5f),
1.5f,
ray2
);
Assert.True(hit2.isClose(intersection2), "TestInnerHit failed! - Assert 4/4");
}
public void TestrayIntersection()
{
Sphere s1 = new Sphere();
Sphere s2 = new Sphere(Transformation.Translation(new Vec(0.0f, 1.7f, 0.0f)));
CSGUnion u1 = new CSGUnion(s1, s2);
Ray ray1 = new Ray(origin: new Point(3f, 0f, 0f), dir: -Constant.VEC_X);
HitRecord?intersection1 = u1.rayIntersection(ray1);
Assert.True(intersection1 != null, "TestHit failed! - Assert 1/5");
HitRecord hit1 = new HitRecord(
new Point(1f, 0.0f, 0.0f),
Constant.VEC_X_N,
new Vec2D(0.0f, 0.5f),
3.0f,
ray1
);
Assert.True(hit1.isClose(intersection1), "TestHit failed! - Assert 2/5");
Ray ray2 = new Ray(new Point(6f, 1.7f, 0f), -Constant.VEC_X);
HitRecord?intersection2 = u1.rayIntersection(ray2);
Assert.True(intersection2 != null, "TestHit failed! - Assert 3/5");
HitRecord hit2 = new HitRecord(
new Point(1.0f, 1.7f, 0.0f),
Constant.VEC_X_N,
new Vec2D(0.0f, 0.5f),
6.0f,
ray2
);
Assert.True(hit2.isClose(intersection2), "TestHit failed! - Assert 4/5");
Assert.True(u1.rayIntersection(new Ray(new Point(0f, 10f, 2f), -Constant.VEC_Z)) == null, "TestHit failed! - Assert 5/5 ");
}
