public void TestAreaLightFindingSinglePoint()
{
var corner = Point.Zero;
var v1 = new Vector(2, 0, 0);
var v2 = Vector.VectorZ;
var light = new AreaLight(corner, v1, 4, v2, 2, Color.White);
light.JitterBy = Sequence.Generate(0.5, 0.5, 0.5);
Point pt;
pt = light.PointOnLight(0, 0);
Assert.AreEqual(pt, new Point(0.25, 0, 0.25));
pt = light.PointOnLight(1, 0);
Assert.AreEqual(pt, new Point(0.75, 0, 0.25));
pt = light.PointOnLight(0, 1);
Assert.AreEqual(pt, new Point(0.25, 0, 0.75));
pt = light.PointOnLight(2, 0);
Assert.AreEqual(pt, new Point(1.25, 0, 0.25));
pt = light.PointOnLight(3, 1);
Assert.AreEqual(pt, new Point(1.75, 0, 0.75));
}
public void FindingSinglePointOnAnAreaLight_ShouldWork(double u, double v, Point result)
{
var corner = new Point(0, 0, 0);
var v1 = new Vector(2, 0, 0);
var v2 = new Vector(0, 0, 1);
var light = new AreaLight(corner, v1, 4, v2, 2, Color.White);
light.JitterBy = new Sequence(new List <double> {
0.5
});
var pt = light.PointOnLight(u, v);
Assert.Equal(result, pt, PointComparer);
}
