public static void TestRender(int spp, int height)
{
var aspectRatio = 1f;
var width = (int)(height * aspectRatio);
var from = new Point(278, 278, -800f);
var to = new Point(278, 278, 0);
var fov = MathF.Deg(278f / 400f);
//var transform = Transform.LookAt2(from, to, Vectors.Up);
var transform = Transform.Translate(278, 278, -800);
var dist = Point.Distance(from, to);
var filter = new MitchellFilter(new Vector2(2f, 2f), 0.5f, 0.25f);
var film = new Film(new PixelVector(width, height), new Bounds2D(0, 0, 1, 1), filter, 20f, 1f);
var camera = PerspectiveCamera.Create(transform, aspectRatio, 0.8f, dist, fov, film);
//var integrator = new AmbientOcclusionIntegrator(true, 64, camera,
// new HaltonSampler(spp, film.GetSampleBounds()),
// film.CroppedBounds);
//var integrator = new DepthIntegrator(700f, 1000f, camera, new HaltonSampler(spp, film.GetSampleBounds()),
// film.CroppedBounds);
//var integrator = new NormalIntegrator(camera, new HaltonSampler(spp, film.GetSampleBounds()),
// film.CroppedBounds);
var integrator = new WhittedIntegrator(5, camera, new HaltonSampler(spp, film.GetSampleBounds()),
film.CroppedBounds);
film.SetSink(new Sink(Environment.GetFolderPath(Environment.SpecialFolder.MyPictures), "int"));
var scene = Build();
Console.WriteLine("Rendering at {0}x{1}...", width, height);
var stopwatch = new Stopwatch();
stopwatch.Start();
integrator.Render(scene);
stopwatch.Stop();
Console.WriteLine("Done ({0})", stopwatch.Elapsed);
}
public Integrator MakeIntegrator(PbrtOptions options)
{
Camera camera = MakeCamera(options);
if (camera == null)
{
//Error("Unable to create camera");
return(null);
}
Sampler sampler =
PbrtApi.MakeSampler(SamplerName, SamplerParams, camera.Film);
if (sampler == null)
{
//Error("Unable to create sampler.");
return(null);
}
Integrator integrator = null;
switch (IntegratorName)
{
case "whitted":
integrator = WhittedIntegrator.Create(IntegratorParams, sampler, camera);
break;
//case "directlighting":
// integrator =
// CreateDirectLightingIntegrator(IntegratorParams, sampler, camera);
// break;
//case "path":
// integrator = CreatePathIntegrator(IntegratorParams, sampler, camera);
// break;
//case "volpath":
// integrator = CreateVolPathIntegrator(IntegratorParams, sampler, camera);
// break;
//case "bdpt":
// integrator = CreateBDPTIntegrator(IntegratorParams, sampler, camera);
// break;
//case "mlt":
// integrator = CreateMLTIntegrator(IntegratorParams, camera);
// break;
//case "ambientocclusion":
// integrator = CreateAOIntegrator(IntegratorParams, sampler, camera);
// break;
//case "sppm":
// integrator = CreateSPPMIntegrator(IntegratorParams, camera);
// break;
default:
//Error("Integrator \"%s\" unknown.", IntegratorName.c_str());
return(null);
}
if (HasScatteringMedia && IntegratorName != "volpath" &&
IntegratorName != "bdpt" && IntegratorName != "mlt")
{
//Warning(
// "Scene has scattering media but \"%s\" integrator doesn't support "
// "volume scattering. Consider using \"volpath\", \"bdpt\", or "
// "\"mlt\".", IntegratorName.c_str());
}
IntegratorParams.ReportUnused();
// Warn if no light sources are defined
if (!Lights.Any())
{
//Warning(
// "No light sources defined in scene; "
//"rendering a black image.");
}
return(integrator);
}
