public Sphere(Vect3 position, Vect3 lookAt, double rotationRad, Color color) : base(position, lookAt)
{
Color = color;
Radius = lookAt.Length();
// calculate the rotation of the 0-meridian
RotVect = lookAt;
// check so we don't end up with two linear dependent vectors
if (System.Math.Abs(RotVect.Y) > Constants.EPS &&
System.Math.Abs(RotVect.X) < Constants.EPS &&
System.Math.Abs(RotVect.Z) < Constants.EPS)
{
RotVect.X += 1;
}
else
{
RotVect.Y += 1;
}
RotVect = RotVect.CrossProduct(lookAt).Normalize();
LookAt = LookAt.Normalize();
Rotate(lookAt, rotationRad);
}
public virtual double GetReflectivityAt(Vect3 hitPoint)
{
return Reflectivity;
}
public override bool Contains(Vect3 hitPoint)
{
throw new Exception("Not supported yet.");
}
public Plane(Vect3 position, Vect3 normal) : base(position, normal)
{
LookAt = LookAt.Normalize();
}
public override bool IsEnclosedByCube(Vect3 bcenter, double w2)
{
return(CubeCone.IsCubeEnclosingCone(bcenter, w2, Position, LookAt, AxisLength, CosPhi));
}
public override bool Contains(Vect3 hitPoint)
{
return(System.Math.Abs(hitPoint.Distance(Position) - Radius) < Constants.EPS);
}
public Sphere(Vect3 position, double radius, Color color)
: this(position, radius, color, 0)
{
}
public bool Equals(Vect3 v, double eps = Constants.EPS)
{
return(System.Math.Abs(X - v.X) < eps &&
System.Math.Abs(Y - v.Y) < eps &&
System.Math.Abs(Z - v.Z) < eps);
}
public TexturedSphere(Vect3 position, double radius, double rotation, String imagePath)
: this(position, radius, rotation, new Color(), 0, imagePath)
{
}
private Color GetTextureColorAt(Vect3 hitPoint)
{
Vect3 texcoord = Vect3Extensions.InterpolateTriangle(Position, V2, V3, _t1, _t2, _t3, hitPoint);
return(_texture.GetColorAt(texcoord));
}
public void CopyDataTo(ref Vect3 other)
{
other.X = X;
other.Y = Y;
other.Z = Z;
}
public abstract Vect3 GetNormalAt(Vect3 hitPoint);
public abstract bool Contains(Vect3 hitPoint);
public virtual bool IsEnclosedByCube(Vect3 cCenter, double cWidthHalf)
{
Sphere s = GetBoundingSphere();
return CubeSphere.IsSphereEnclosedByCube(cCenter, cWidthHalf, s.Position, s.Radius);
}
public override Vect3 GetNormalAt(Vect3 hitPoint)
{
return(hitPoint * -1); // the normal is everywhere the vect pt -> 0
}
public TexturedSphere(Vect3 position, Vect3 lookAt, double rotation, String imagePath)
: this(position, lookAt, rotation, new Color(), 0, imagePath)
{
}
public override bool Contains(Vect3 hitPoint)
{
return(false);
}
public TexturedSphere(Vect3 position, Vect3 lookAt, double rotation, Color color, double reflectivity,
String imagePath)
: base(position, lookAt, rotation, color, reflectivity)
{
_texture = Texture.Load(imagePath);
}
public Sphere(Vect3 position, Vect3 lookAt, double rotationRad, Color color, double reflectivity)
: this(position, lookAt, rotationRad, color)
{
Reflectivity = reflectivity;
}
public new Color GetColorAt(Vect3 hitPoint)
{
return(GetTextureColorAt(hitPoint).MixSurfaceSurface(Color));
}
public override Vect3 GetNormalAt(Vect3 hitPoint)
{
Vect3 tmp = hitPoint - Position;
return(tmp.Normalize());
}
public new double GetReflectivityAt(Vect3 hitPoint)
{
double alpha = GetTextureColorAt(hitPoint).A / 256.0;
return((1 - alpha) * Reflectivity);
}
public override bool Contains(Vect3 hitPoint)
{
throw new Exception("not implemented");
}
public Basic3DObjectStructure(Vect3 position, Vect3 lookAt, I3DObject[] objects)
: base(position, lookAt)
{
_objects = objects;
}
public Plane(Vect3 position, Vect3 normal, Color color)
: this(position, normal)
{
Color = color;
}
protected I3DObject GetObjectAt(Vect3 hitPoint)
{
return(_objects.FirstOrDefault(o3D => o3D.Contains(hitPoint)));
}
public override Vect3 GetNormalAt(Vect3 hitPoint)
{
return(LookAt);
}
public override bool Contains(Vect3 hitPoint)
{
return(_objects.Any(o3D => o3D.Contains(hitPoint)));
}
public Plane(Vect3 position, Vect3 normal, Color color, double reflectivity)
: this(position, normal)
{
Color = color;
Reflectivity = reflectivity;
}
public virtual Color GetColorAt(Vect3 hitPoint)
{
return Color;
}