public static Material DiffuseParticleCloud(RGBSpectrum albedo, float density)
{
return(new(IDensityProfile.Volumetric(density),
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.Uniform,
IReflectionProfile.Diffuse,
IEmittanceProfile.None));
}
public static Material IsotropicVolumetric(RGBSpectrum albedo, float density)
{
return(new(IDensityProfile.Volumetric(density),
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.Forwards,
IReflectionProfile.Spherical,
IEmittanceProfile.None));
}
public static Material Glossy(RGBSpectrum albedo, float roughness)
{
return(new(IDensityProfile.Surface,
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.SurfaceGGX(roughness),
IReflectionProfile.Specular,
IEmittanceProfile.None));
}
public static Material RoughSpecularDiffuseBlend(RGBSpectrum albedo, float specularity, float roughness)
{
return(new(IDensityProfile.Surface,
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.SurfaceGGX(roughness),
IReflectionProfile.Blend((IReflectionProfile.Diffuse, 1f - specularity), (IReflectionProfile.Specular, specularity)),
IEmittanceProfile.None));
}
public static Material Specular(RGBSpectrum albedo)
{
return(new(IDensityProfile.Surface,
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.Flat,
IReflectionProfile.Specular,
IEmittanceProfile.None));
}
public static Material SpecularParticleCloud(RGBSpectrum albedo, float density, float roughness)
{
return(new(IDensityProfile.Volumetric(density),
IAbsorptionProfile.Uniform(albedo),
IOrientationProfile.SurfaceSGGX(roughness),
IReflectionProfile.Specular,
IEmittanceProfile.None));
}
