public void IntersectSphere()
{
Sphere sphere = new Sphere()
{
Radius = 2
};
double biggerSphereFactor = 3;
Sampler sampler = new Sampler();
int sampleCount = 64;
int sqrtSampleCount = (int)Math.Sqrt(sampleCount);
foreach (Vector2d sample in sampler.GenerateJitteredSamples(sqrtSampleCount))
{
// shoot rays at the sphere center from a bigger concontric sphere
Vector3d unitSphereSample = Sampler.UniformSampleSphereWithEqualArea(sample, -1, 1);
Vector3d sourcePos = biggerSphereFactor * sphere.Radius * unitSphereSample;
Ray ray = new Ray(sourcePos, sphere.Center - sourcePos);
Intersection intersection = sphere.Intersect(ray);
Assert.NotNull(intersection);
Vector3d intPos = intersection.Position;
Console.WriteLine("Black, {0},", ray.ToLine());
Console.WriteLine(String.Format("Red, {0},", intPos.ToPoint()));
}
}
