public virtual Ray getRay(double u, double v)
{
Vector3D direction = new Vector3D(u, v, focalLength_);
direction.normalize();
return(new Ray(new Vector3D(u, v, 0), direction));
}
internal Sample(Vector3D p, Vector3D n, int depth)
{
pi = new Vector3D(p);
ni = new Vector3D(n);
ni.normalize();
irr = null;
next = null;
this.depth = depth;
}
internal Sample(Vector3D p, Vector3D n, double r0, RGBColor irr, RGBColor[] rotGradient, RGBColor[] transGradient, int depth)
{
pi = new Vector3D(p);
ni = new Vector3D(n);
ni.normalize();
invR0 = 1.0 / r0;
this.irr = new RGBColor(irr);
this.rotGradient = rotGradient;
this.transGradient = transGradient;
this.depth = depth;
next = null;
}
public Triangle(Vertex v0, Vertex v1, Vertex v2) : base()
{
this.v0 = v0;
this.v1 = v1;
this.v2 = v2;
ng = v1.p.subNew(v0.p).cross(v2.p.subNew(v0.p));
ng.normalize();
d = -((ng.x() * v0.p.x()) + (ng.y() * v0.p.y()) + (ng.z() * v0.p.z()));
if (Math.Abs(ng.y()) > Math.Abs(ng.x()))
{
dropAxis = (Math.Abs(ng.z()) > Math.Abs(ng.y())) ? 2 : 1;
}
else
{
dropAxis = (Math.Abs(ng.z()) > Math.Abs(ng.x())) ? 2 : 0;
}
switch (dropAxis)
{
case 0:
edge1x = v0.p.y() - v1.p.y();
edge2x = v0.p.y() - v2.p.y();
edge1y = v0.p.z() - v1.p.z();
edge2y = v0.p.z() - v2.p.z();
break;
case 1:
edge1x = v0.p.x() - v1.p.x();
edge2x = v0.p.x() - v2.p.x();
edge1y = v0.p.z() - v1.p.z();
edge2y = v0.p.z() - v2.p.z();
break;
default:
edge1x = v0.p.x() - v1.p.x();
edge2x = v0.p.x() - v2.p.x();
edge1y = v0.p.y() - v1.p.y();
edge2y = v0.p.y() - v2.p.y();
break;
}
double s = 1.0 / ((edge1x * edge2y) - (edge2x * edge1y));
edge1x *= s;
edge1y *= s;
edge2x *= s;
edge2y *= s;
}