private Couleur processLumiere(V3 rayon, PointColore point)
{
V3 normalPoint = point.GetNormale();
//V3 directionOculaire = new V3(camera - point.GetLoc());
//directionOculaire.Normalize();
Couleur lumiereTotale = new Couleur(0, 0, 0);
lumiereTotale += point.GetCouleur() * couleurAmbiance * intensiteAmbiance;
foreach (Lumiere lampe in lampes)
{
if (!(lampe.isOccluded(point, objets)))
{
V3 directionLampeNormale = new V3(lampe.GetDirection(point.GetLoc()));
directionLampeNormale.Normalize();
float cosAlpha = normalPoint * directionLampeNormale;
float facteurDiffus = Math.Max(0, cosAlpha);
lumiereTotale += point.GetCouleur() * lampe.GetCouleur() * facteurDiffus * lampe.GetIntensite(point.GetLoc());
V3 reflet = (2 * cosAlpha * normalPoint) - directionLampeNormale;
float produitSpeculaire = Math.Max(0, (reflet * (-rayon)) / (reflet.Norm() * rayon.Norm()));
float facteurSpeculaire = (float)Math.Pow(produitSpeculaire, puissanceSpeculaire);
lumiereTotale += lampe.GetCouleur() * lampe.GetIntensite(point.GetLoc()) * facteurSpeculaire;
}
}
return(lumiereTotale);
}
public override bool isOccluded(PointColore point, List <Formes> objets)
{
foreach (Formes objet in objets)
{
if (objet != point.getOwner())
{
float intersect = objet.IntersectRayon(point.GetLoc(), this.direction);
if (intersect >= 0)
{
return(true);
}
}
}
return(false);
}
public override bool isOccluded(PointColore point, List <Formes> objets)
{
foreach (Formes objet in objets)
{
if (objet != point.getOwner())
{
float intermax = (this.position - point.GetLoc()).Norm();
float intersect = objet.IntersectRayon(point.GetLoc(), this.GetDirection(point.GetLoc()));
if (intersect >= 0 && intersect <= intermax)
{
return(true);
}
}
}
return(false);
}
private Couleur Raycast(V3 camera, V3 rayon)
{
Dictionary <float, Formes> intersections = new Dictionary <float, Formes>();
foreach (Formes objet in objets)
{
float intersect = objet.IntersectRayon(camera, rayon);
if (intersect >= 0 && !(intersections.Keys.Contains(intersect)))
{
intersections.Add(intersect, objet);
}
}
if (intersections.Keys.Count == 0)
{
return(new Couleur(0, 0, 0));
}
float minT = intersections.Keys.Min();
PointColore point = intersections[minT].GetCouleurIntersect(camera, rayon, minT);
return(processLumiere(rayon, point));
}
public abstract bool isOccluded(PointColore point, List <Formes> objets);
