public virtual bool Scatter(Ray p_rayIn, HitRecord p_hitRecord, ref Color p_attenuation, ref Ray p_scatteredRay)
{
if (p_attenuation == null)
{
throw new ArgumentNullException(nameof(p_attenuation));
}
var reflected = Vec3.GetReflection(Vec3.GetUnitVector(p_rayIn.Direction), p_hitRecord.Normal);
p_scatteredRay = new Ray(p_hitRecord.Point, reflected + Roughness * Math.GetRandomPositionInUnitSphere());
p_attenuation = Albedo;
return(Vec3.GetDotProduct(p_scatteredRay.Direction, p_hitRecord.Normal) > 0);
}
public virtual bool Scatter(Ray p_rayIn, HitRecord p_hitRecord, ref Color p_attenuation, ref Ray p_scatteredRay)
{
if (p_attenuation == null)
{
throw new ArgumentNullException(nameof(p_attenuation));
}
var target = p_hitRecord.Point + p_hitRecord.Normal + Math.GetRandomPositionInUnitSphere();
p_scatteredRay = new Ray(p_hitRecord.Point, target - p_hitRecord.Point);
p_attenuation = Albedo;
return(true);
}