public void TestQuickRayIntersection()
{
Sphere s1 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
Sphere s2 = new Sphere(Transformation.Translation(new Vec(-0.5f, 0.0f, 0.0f)));
CSGIntersection u1 = new CSGIntersection(s1, s2);
Ray r1 = new Ray(origin: new Point(1.0f, 0.0f, 0.0f), dir: -Constant.VEC_X);
Assert.True(u1.quickRayIntersection(r1), "TestQuickRayIntersection failed! - Assert 1/");
Ray r2 = new Ray(origin: new Point(12.0f, 12.0f, 10.0f), dir: Constant.VEC_Z);
Assert.False(u1.quickRayIntersection(r2), "Far away ray test failed - Assert 2/");
Ray r3 = new Ray(origin: new Point(1.0f, 0.0f, 1.0f), dir: -Constant.VEC_Z);
Assert.False(u1.quickRayIntersection(r3), "Ray through firstShape only test failed - Assert 3/");
Ray r4 = new Ray(origin: new Point(0.0f, 0.0f, 0.0f), dir: -Constant.VEC_X);
Assert.True(u1.quickRayIntersection(r4), "TestQuickRayIntersection failed! - Assert 4/5");
Ray r5 = new Ray(origin: new Point(0.0f, 0.0f, 0.0f), dir: Constant.VEC_X);
Assert.True(u1.quickRayIntersection(r5), "TestQuickRayIntersection failed! - Assert 5/5");
}
public void TestrayIntersectionList()
{
Sphere s1 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
Sphere s2 = new Sphere(Transformation.Translation(new Vec(-0.5f, 0.0f, 0.0f)));
CSGIntersection u1 = new CSGIntersection(s1, s2);
Ray r1 = new Ray(origin: new Point(1.0f, 0.0f, 0.0f), dir: -Constant.VEC_X);
List <HitRecord?> intersection = u1.rayIntersectionList(r1);
List <HitRecord> hits = new List <HitRecord>();
hits.Add(new HitRecord(
new Point(-0.5f, 0.0f, 0.0f),
new Normal(1.0f, 0.0f, 0f),
new Vec2D(0.5f, 0.5f),
1.5f,
r1)
);
hits.Add(new HitRecord(
new Point(0.5f, 0f, 0f),
new Normal(1.0f, 0f, 0f),
new Vec2D(0.0f, 0.5f),
0.5f,
r1)
);
hits.Sort();
Assert.True(intersection.Count == hits.Count);
for (int i = 0; i < intersection.Count; i++)
{
Assert.True(hits[i].isClose((HitRecord)intersection[i]), $"TestRayIntersectionList failed - assert 2.{i}/2");
}
}
public void TestrayIntersctionInner()
{
Sphere s1 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
Sphere s2 = new Sphere(Transformation.Translation(new Vec(-0.5f, 0.0f, 0.0f)));
CSGIntersection u1 = new CSGIntersection(s1, s2);
Ray r1 = new Ray(origin: new Point(0.0f, 0.0f, 0.0f), dir: -Constant.VEC_X);
HitRecord?intersection1 = u1.rayIntersection(r1);
Assert.True(intersection1 != null, "TestHit failed! - Assert 1/5");
HitRecord hit1 = new HitRecord(
new Point(-0.5f, 0.0f, 0.0f),
new Normal(1.0f, 0.0f, 0.0f),
new Vec2D(0.5f, 0.5f),
0.5f,
r1
);
Assert.True(hit1.isClose(intersection1), "TestHit failed! - Assert 2/5");
Ray r2 = new Ray(origin: new Point(0.0f, 0.0f, 0.0f), dir: Constant.VEC_X);
HitRecord?intersection2 = u1.rayIntersection(r2);
Assert.True(intersection2 != null, "TestHit failed! - Assert 3/5");
HitRecord hit2 = new HitRecord(
new Point(0.5f, 0.0f, 0.0f),
new Normal(-1.0f, 0.0f, 0.0f),
new Vec2D(0.0f, 0.5f),
0.5f,
r2
);
Assert.True(hit2.isClose(intersection2), "TestHit failed! - Assert 4/5");
}
public void TestrayIntersction()
{
Sphere s1 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
Sphere s2 = new Sphere(Transformation.Translation(new Vec(-0.5f, 0.0f, 0.0f)));
CSGIntersection u1 = new CSGIntersection(s1, s2);
Ray r1 = new Ray(origin: new Point(1.0f, 0.0f, 0.0f), dir: -Constant.VEC_X);
HitRecord?intersection1 = u1.rayIntersection(r1);
Assert.True(intersection1 != null, "TestHit failed! - Assert 1/");
HitRecord hit1 = new HitRecord(
new Point(0.5f, 0.0f, 0.0f),
new Normal(1.0f, 0.0f, 0.0f),
new Vec2D(0.0f, 0.5f),
0.5f,
r1
);
Ray r2 = new Ray(origin: new Point(12.0f, 12.0f, 10.0f), dir: Constant.VEC_Z);
HitRecord?intersection2 = u1.rayIntersection(r2);
Assert.True(intersection2 == null, "Far away ray test failed - Assert 3/");
Ray r3 = new Ray(origin: new Point(1.0f, 0.0f, 1.0f), dir: -Constant.VEC_Z);
HitRecord?intersection3 = u1.rayIntersection(r3);
Assert.True(intersection3 == null, "Ray through firstShape only test failed - Assert 4/");
}
public void TestisPointInside()
{
Sphere s1 = new Sphere(Transformation.Translation(new Vec(0.5f, 0.0f, 0.0f)));
Sphere s2 = new Sphere(Transformation.Translation(new Vec(-0.5f, 0.0f, 0.0f)));
CSGIntersection u1 = new CSGIntersection(s2, s1);
Point p1 = new Point(0.25f, 0f, 0f);
Point p2 = new Point(0.25f, 0.1f, 0.1f);
Point p3 = new Point(0.5f, 0.3f, 0f);
Assert.True(u1.isPointInside(p1), "Test isPointInside failed - assert 1/4");
Assert.True(u1.isPointInside(p2), "Test isPointInside failed - assert 2/4");
Assert.False(u1.isPointInside(p3), "Test isPointInside failed - assert 4/4");
}
public void TestCSGCubeSphere()
{
Shape S1 = new Sphere(transformation: Transformation.Scaling(1.2f));
Shape B1 = new Box();
CSGIntersection IntCubeSphere = S1 * B1;
Ray r1 = new Ray(origin: new Point(-5.0f, 0.0f, 0.0f), dir: Constant.VEC_X);
HitRecord?intersection1 = IntCubeSphere.rayIntersection(r1);
Assert.True(intersection1 != null, "TestCSGCubeSphere failed! - Assert 1/5");
HitRecord hit1 = new HitRecord(
new Point(-1.0f, 0.0f, 0.0f),
new Normal(-1.0f, 0.0f, 0.0f),
new Vec2D(0.125f, 0.5f),
4f,
r1
);
// Console.WriteLine("hit : " + hit1.ToString());
// Console.WriteLine("intersection : " + intersection1.ToString());
Assert.True(hit1.isClose(intersection1), "TestCSGCubeSphere failed! - Assert 2/5");
Ray r2 = new Ray(origin: new Point(2f, 2f, 0.0f), dir: (-Constant.VEC_X - Constant.VEC_Y).Normalize());
HitRecord?intersection2 = IntCubeSphere.rayIntersection(r2);
Assert.True(intersection2 != null, "TestCSGCubeSphere failed! - Assert 1/5");
HitRecord hit2 = new HitRecord(
(S1.transformation * new Point(MathF.Sqrt(2) / 2f, MathF.Sqrt(2) / 2f, 0.0f)),
(S1.transformation * new Normal(MathF.Sqrt(2) / 2f, MathF.Sqrt(2) / 2f, 0.0f)),
new Vec2D(0.125f, 0.5f),
1.6284273f,
r2
);
// Console.WriteLine(MathF.Sqrt(2) / 2f / 0.5892556f);
Assert.True(hit2.isClose(intersection2), "TestCSGCubeSphere failed! - Assert 2/5");
}