public P3 normal(P3 p)
{
P3 v2 = p.sub(this.center);
return v2.scale(1 / radius);
}
//public static SceneObject shootRay(Ray r, out double d)
//{
// float dist;
// SceneObject obj = closest(r);
// if (obj == null)
// {
// return null;
// }
// dist = obj.distance(r);
// if (dist == infinity)
// {
// return null;
// }
// else
// {
// return obj;
// }
//}
//public static SceneObject closest(Ray ray)
//{
// SceneObject sceneObj = null;
// float dist, smallestDist = infinity;
// foreach (SceneObject obj in objects)
// {
// if ((dist = obj.distance(ray)) <= smallestDist)
// {
// smallestDist = dist;
// sceneObj = obj;
// }
// }
// return sceneObj;
//}
public void noName()
{
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
float size1 = size;
P3 p = new P3(i / size1 * 2.0f - 1, 0, j / size1 * 2.0f - 1);
Ray r = new Ray(camera, p.sub(camera).normalize());
float distance = sphere.intersect(r);
if (distance != -1)
{
P3 sp = r.travel(distance);
P3 n = sphere.normal(sp);
float intensity = n.dotProduct(direction);
if (intensity < 0)
{
intensity = 0;
}
pixels[i, j] = directional.scalarMultiply(intensity);
}
else
{
pixels[i, j] = new RColor(0, 0, 0);
}
}
}
panel.Refresh();
}