public Vector3 Trace(Ray ray, Sphere sphere)
{
Vector3 ambient = new Vector3(0.2f, 0.8f, 0.5f);
Hit hit = new Hit();
if (sphere.Intersect(ray, ref hit, 0.001f))
{
Vector3 LightDir = _lightPosition - hit._point;
LightDir.Normalize();
float attenuation = 1f / (LightDir.Length * LightDir.Length);
LightDir.Normalize();
return(attenuation * DiffuseLighting(hit._normal, LightDir));
}
return(ambient);
}
public Vector3 Trace(Ray ray, Sphere sphere)
{
Vector3 ambient = new Vector3(0f, 0f, 0f);
Hit hit = new Hit();
if (sphere.Intersect(ray, ref hit, 0.001f))
{
Vector3 lightDir = lightPosition - hit.point;
lightDir.Normalize();
float attenuation = 1f / (lightDir.length * lightDir.length);
Vector3 lightDir2 = lightPosition2 - hit.point;
lightDir2.Normalize();
float attenuation2 = 1f / (lightDir2.length * lightDir2.length);
return(attenuation * DiffuseLighting(hit.normal, lightDir) + attenuation2 * DiffuseLighting2(hit.normal, lightDir2));
}
return(ambient);
}
