public static Sampler MakeSampler(string name, ParamSet parameters, Film film, Camera camera)
{
switch (name)
{
case "stratified":
{
var jitter = parameters.FindBoolean("jitter", true);
var xSamples = parameters.FindInt32("xsamples", 2);
var ySamples = parameters.FindInt32("ysamples", 2);
var sampleExtent = film.SampleExtent;
return(new StratifiedSampler(sampleExtent, xSamples, ySamples, jitter,
camera.ShutterOpen, camera.ShutterClose));
}
default:
throw new ArgumentException("Unknown sampler: " + name);
}
}
public static Film MakeFilm(string name, ParamSet parameters, Filter filter)
{
switch (name)
{
case "image":
{
var xres = parameters.FindInt32("xresolution", 640);
var yres = parameters.FindInt32("yresolution", 480);
var cropWindow = parameters.FindSingleList("cropwindow");
if (cropWindow.Length == 0)
{
cropWindow = new float[] { 0, 1, 0, 1 }
}
;
return(new ImageFilm(xres, yres, filter, cropWindow));
}
default:
throw new ArgumentException("Unknown film: " + name);
}
}
public static SurfaceIntegrator MakeSurfaceIntegrator(string name, ParamSet parameters)
{
switch (name)
{
case "whitted":
{
var maxDepth = parameters.FindInt32("maxdepth", 5);
return(new WhittedIntegrator(maxDepth));
}
default:
throw new ArgumentException("Unknown surface integrator: " + name);
}
}
public static AreaLight MakeAreaLight(string name, Transform lightToWorld,
ParamSet parameters, Shape shape)
{
switch (name)
{
case "area":
case "diffuse":
{
var l = parameters.FindSpectrum("L", new Spectrum(1.0f));
var scale = parameters.FindSpectrum("scale", new Spectrum(1.0f));
var numSamples = parameters.FindInt32("nsamples", 1);
return new DiffuseAreaLight(lightToWorld, l * scale, numSamples, shape);
}
default:
throw new ArgumentException("Unknown area light: " + name);
}
}
public static AreaLight MakeAreaLight(string name, Transform lightToWorld,
ParamSet parameters, Shape shape)
{
switch (name)
{
case "area":
case "diffuse":
{
var l = parameters.FindSpectrum("L", new Spectrum(1.0f));
var scale = parameters.FindSpectrum("scale", new Spectrum(1.0f));
var numSamples = parameters.FindInt32("nsamples", 1);
return(new DiffuseAreaLight(lightToWorld, l * scale, numSamples, shape));
}
default:
throw new ArgumentException("Unknown area light: " + name);
}
}
public static Film MakeFilm(string name, ParamSet parameters, Filter filter)
{
switch (name)
{
case "image" :
{
var xres = parameters.FindInt32("xresolution", 640);
var yres = parameters.FindInt32("yresolution", 480);
var cropWindow = parameters.FindSingleList("cropwindow");
if (cropWindow.Length == 0)
cropWindow = new float[] { 0, 1, 0, 1 };
return new ImageFilm(xres, yres, filter, cropWindow);
}
default:
throw new ArgumentException("Unknown film: " + name);
}
}
public static SurfaceIntegrator MakeSurfaceIntegrator(string name, ParamSet parameters)
{
switch (name)
{
case "whitted":
{
var maxDepth = parameters.FindInt32("maxdepth", 5);
return new WhittedIntegrator(maxDepth);
}
default:
throw new ArgumentException("Unknown surface integrator: " + name);
}
}
public static Sampler MakeSampler(string name, ParamSet parameters, Film film, Camera camera)
{
switch (name)
{
case "stratified":
{
var jitter = parameters.FindBoolean("jitter", true);
var xSamples = parameters.FindInt32("xsamples", 2);
var ySamples = parameters.FindInt32("ysamples", 2);
var sampleExtent = film.SampleExtent;
return new StratifiedSampler(sampleExtent, xSamples, ySamples, jitter,
camera.ShutterOpen, camera.ShutterClose);
}
default:
throw new ArgumentException("Unknown sampler: " + name);
}
}
public int FindInt32(string name, int defaultValue)
{
return(_geomParams.FindInt32(name, defaultValue));
}