public ITraceInformation CalculateIntersection(Ray line)
{
ITraceInformation bestHit = null;
foreach (var triangle in GetTriangles())
{
var hit = triangle.CalculateIntersection(line);
if (!hit.Intersects)
{
continue;
}
if (bestHit == null)
{
bestHit = hit;
continue;
}
if (hit.Distance < bestHit.Distance)
{
bestHit = hit;
}
}
if (bestHit == null)
{
return(new NoIntersection());
}
return(new Intersection(bestHit.IntersectionPosition, line, Material, this)
{
Normal = bestHit.Normal
});
}
public ITraceInformation Trace(Ray ray)
{
ITraceInformation closestHit = null;
foreach (var entity in this)
{
var hitInfo = entity.CalculateIntersection(ray);
if (!hitInfo.Intersects)
{
continue;
}
if (closestHit == null)
{
closestHit = hitInfo;
continue;
}
if (hitInfo.Distance < closestHit.Distance)
{
closestHit = hitInfo;
}
}
return(closestHit ?? new NoIntersection());
}
