public static PathIntegrator Create(ParamSet paramSet, Sampler sampler, Camera camera)
{
int maxDepth = paramSet.FindOneInt("maxdepth", 5);
Bounds2I pixelBounds = camera.Film.GetSampleBounds();
int[] pb = paramSet.FindInt("pixelbounds");
if (pb.Length > 0)
{
if (pb.Length != 4)
{
throw new InvalidOperationException();
}
pixelBounds = pixelBounds.Intersect(new Bounds2I(new Point2I(pb[0], pb[2]), new Point2I(pb[1], pb[3])));
if (pixelBounds.Area == 0.0)
{
throw new InvalidOperationException("degenerate pixelbounds specified");
}
}
double rrThreshold = paramSet.FindOneDouble("rrthreshold", 1.0);
string lightStrategy = paramSet.FindOneString("lightsamplestrategy", "spatial");
return(new PathIntegrator(maxDepth, camera, sampler, pixelBounds, rrThreshold, lightStrategy));
}