private void AddButton_Click(object sender, RoutedEventArgs e)
{
if (sidesTextBox.Text == "" || colorTextBox.Text == "")
{
msgTextBlock.Foreground = new SolidColorBrush(Colors.Red);
msgTextBlock.Text = "Данные не были введены";
}
else
{
try
{
flatness.AddPolygons(colorTextBox.Text, Flatness.SidesToInt(sidesTextBox.Text));
msgTextBlock.Foreground = new SolidColorBrush(Colors.Green);
msgTextBlock.Text = "Многоугольник успешно добавлен.";
}
catch
{
msgTextBlock.Foreground = new SolidColorBrush(Colors.Red);
msgTextBlock.Text = "Данные некоректно введены!";
}
}
}
private void addButton_Click(object sender, EventArgs e)
{
if (sidesTextBox.Text == "" || colorTextBox.Text == "")
{
msgLabel.ForeColor = Color.FromName("Red");
msgLabel.Text = "Данные не были введены";
}
else
{
try
{
flatness.AddPolygons(colorTextBox.Text, Flatness.SidesToInt(sidesTextBox.Text));
msgLabel.ForeColor = Color.FromName("Green");
msgLabel.Text = "Многоугольник успешно добавлен.";
}
catch
{
msgLabel.ForeColor = Color.FromName("Red");
msgLabel.Text = "Данные некоректно введены!";
}
}
}
public void ComputeScatteringFunctions(SurfaceInteraction si,
IObjectArena arena,
TransportMode mode,
bool allowMultipleLobes)
{
BumpMap?.Bump(si);
si.BSDF.Initialize(si);
// Diffuse
var c = Color.Evaluate(si).Clamp();
var metallicWeight = Metallic.Evaluate(si);
var e = Eta.Evaluate(si);
var strans = SpecTrans.Evaluate(si);
var diffuseWeight = (1f - metallicWeight) * (1f - strans);
var dt = DiffTrans.Evaluate(si) / 2f;
var rough = Roughness.Evaluate(si);
var lum = c.YComponent();
var Ctint = lum > 0f ? c / lum : Spectrum.One;
if (diffuseWeight > 0f)
{
if (IsThin)
{
var flat = Flatness.Evaluate(si);
si.BSDF.Add(arena.Create <DisneyDiffuse>().Initialize(diffuseWeight * (1f - flat) * (1 - dt) * c));
si.BSDF.Add(arena.Create <DisneyFakeSS>().Initialize(diffuseWeight * flat * (1f - dt) * c, rough));
}
else
{
var sd = ScatterDistance.Evaluate(si);
if (sd.IsBlack())
{
si.BSDF.Add(arena.Create <DisneyDiffuse>().Initialize(diffuseWeight * c));
}
else
{
// The line below was the original code but produces some odd results.
si.BSDF.Add(arena.Create <SpecularTransmission>().Initialize(Spectrum.One, 1f, e, mode));
si.BSSRDF = arena.Create <DisneyBSSRDF>().Initialize(diffuseWeight * c, sd, si, e, this, mode);
}
}
// Retro-reflection.
si.BSDF.Add(arena.Create <DisneyRetro>().Initialize(diffuseWeight * c, rough));
// Sheen
var sheenWeight = Sheen.Evaluate(si);
if (sheenWeight > 0f)
{
var stint = SheenTint.Evaluate(si);
var Csheen = Spectrum.Lerp(Spectrum.One, Ctint, stint);
si.BSDF.Add(arena.Create <DisneySheen>().Initialize(diffuseWeight * sheenWeight * Csheen));
}
}
// Microfacet distribution
var aspect = Sqrt(1f - Anisotropic.Evaluate(si) * 0.9f);
var ax = Max(0.001f, Sqr(rough) / aspect);
var ay = Max(0.001f, Sqr(rough) * aspect);
var dist = arena.Create <DisneyMicrofacetDistribution>().Initialize(ax, ay);
// Specular = Trowbridge-Reitz with modified Fresnel function.
var specTint = SpecularTint.Evaluate(si);
var Cspec0 = Spectrum.Lerp(SchlickR0FromEta(e) * Spectrum.Lerp(Spectrum.One, Ctint, specTint), c,
metallicWeight);
var fresnel = arena.Create <DisneyFresnel>().Initialize(Cspec0, metallicWeight, e);
si.BSDF.Add(arena.Create <MicrofacetReflection>().Initialize(c, dist, fresnel));
// Clearcoat
var cc = Clearcoat.Evaluate(si);
if (cc > 0f)
{
si.BSDF.Add(arena.Create <DisneyClearcoat>()
.Initialize(cc, Lerp(0.1f, 0.001f, ClearcoatGloss.Evaluate(si))));
}
// BTDF
if (strans > 0f)
{
// Walter et al's model, with the provided transmissive term scaled
// by sqrt(color), so that after two refractions, we're back to the
// provided color.
var T = strans * c.Sqrt();
if (IsThin)
{
var rScaled = (0.65f * e - 0.35f) * rough;
var atx = Max(0.001f, Sqr(rScaled) / aspect);
var aty = Max(0.001f, Sqr(rScaled) * aspect);
var scaledDist = arena.Create <TrowbridgeReitzDistribution>().Initialize(atx, aty);
si.BSDF.Add(arena.Create <MicrofacetTransmission>().Initialize(T, scaledDist, 1f, e, mode));
}
else
{
si.BSDF.Add(arena.Create <MicrofacetTransmission>().Initialize(T, dist, 1f, e, mode));
}
}
if (IsThin)
{
si.BSDF.Add(arena.Create <LambertianTransmission>().Initialize(dt * c));
}
}
public AddPolygonWindow(ref Flatness flatness)
{
this.flatness = flatness;
InitializeComponent();
}