public int Reflectivity(Light.Light lightSrc, Point3D lookVect)
{
Point3D lightVector = (this - lightSrc.Location);
Point3D locNormal = vertexNorm;
//Diffuse
float dotProduct; // cosine of the angle between the normal and the lightsource (from -1 to 1)
dotProduct = (locNormal * lightVector) / (lightVector.Magnitude * locNormal.Magnitude);
float temp = (1 + dotProduct) / 2; //max(2/2) = 1, min = (0/2) = 0
//float temp = 0;
//Specular
Point3D reflectVect = lookVect - 2 * (Point3D.Dot(lookVect, locNormal) * locNormal);
lightVector.Normalize();
reflectVect.Normalize();
if (Point3D.Dot(lightVector, reflectVect) < -.85f)
{
temp = 1 / lightSrc.Intensity;
}
return((int)(temp * 255));
}
public void Add(Light.Light l)
{
lights.Add(l);
}