public void DotProduct()
{
IVector <DoubleComponent> Test1 = MatrixFactory <DoubleComponent> .CreateVector3D(10, 1, 2);
IVector <DoubleComponent> Test2 = MatrixFactory <DoubleComponent> .CreateVector3D(1, 0, 0);
DoubleComponent DotResult = Test2.Dot(Test1);
Assert.IsTrue(DotResult.Equals(10));
}
public IRay GetRefractionRay()
{
IVector v = this.Ray.Direction.Negate();
IVector n = this.Normal;
float cosi = v.Dot(n);
float nint;
if (this.InComing)
{
nint = 1.0f / this.IntersectShape.Material.IndexOfRefraction;
}
else
{
nint = this.IntersectShape.Material.IndexOfRefraction;
}
float cost = (float)Math.Sqrt(1.0f - nint * nint * (1 - cosi * cosi));
return(new Ray(this.Intersection, n.Times(nint * cosi - cost).Minus(v.Times(nint))));
}
public override IRayHit Intersect(IRay ray)
{
float denominator = this.Normal.Dot(ray.Direction);
if (Math.Abs(denominator) > 0.0f)
{
IVector difference = this.Position.Minus(ray.Origin);
float t = difference.Dot(this.Normal) / denominator;
if (t > 0.0f)
{
IVector intersectionPoint = ray.GetEndAt(t);
return(new RayHit(ray, this, this, this.Normal, intersectionPoint, t, false));
}
}
return(null);
}
