public Viewport(Vec3f cameraOrigin, Vec3f screenOrigin, int screenHeight, int screenWidth)
{
CameraOrigin = cameraOrigin;
ScreenOrigin = screenOrigin;
ScreenHeight = screenHeight;
ScreenWidth = screenWidth;
}
public static int Encode(Vec3f v)
{
//return (_zOrderLookup[ClampFloat(v.Z)] | _zOrderLookup[ClampFloat(v.Y)] << 1 | _zOrderLookup[ClampFloat(v.X)] << 2);
if (v.X >= _zOrderLookup.Length || v.Y >= _zOrderLookup.Length || v.Z >= _zOrderLookup.Length)
{
return 0;
}
return (_zOrderLookup[(int)v.Z] | _zOrderLookup[(int)v.Y] << 1 | _zOrderLookup[(int)v.X] << 2);
}
public Camera(Vec3f origin, Vec3f direction, int screenWidth, int screenHeight, float fieldOfView)
{
throw new System.NotImplementedException();
}
//public int Render()
//{
// //Vector3f d = ScreenOrigin - CameraOrigin;
// //Vector3 o = ScreenOrigin.Clamp();
// //Ray r = new Ray(CameraOrigin, d.Normalize());
// //int test = r.Stab();
// //Vector3f upperRight = new Vector3f(ScreenOrigin.X + ScreenWidth, ScreenOrigin.Y, ScreenOrigin.Z);
// //Vector3f lowerLeft = new Vector3f(ScreenOrigin.X, ScreenOrigin.Y + ScreenHeight, ScreenOrigin.Z);
// Ray r = null;
// Vector3f dir = null;
// Vector3f target = ScreenOrigin;
// for (int y = 0; y < ScreenHeight; y++)
// {
// for (int x = 0; x < ScreenWidth; x++)
// {
// target.X = ScreenOrigin.X + x;
// target.Y = ScreenOrigin.Y + y;
// dir = target - CameraOrigin;
// r = new Ray(CameraOrigin, dir.Normalize());
// int test = r.Stab();
// _rayList.Add(r);
// }
// }
// return 0;
//}
public Ray GetRay(int x, int y)
{
Vec3f dir = new Vec3f(ScreenOrigin.X, ScreenOrigin.Y, ScreenOrigin.Z);
dir.X += x;
dir.Y += y;
dir -= CameraOrigin;
return new Ray(CameraOrigin, dir.Normalize());
}
public Vec3f Normalize()
{
float magnitude = GetMagnitude();
Vec3f v3f = new Vec3f(X, Y, Z);
v3f.X = v3f.X / magnitude;
v3f.Y = v3f.Y / magnitude;
v3f.Z = v3f.Z / magnitude;
return v3f;
}
public static void Vector3fMult(ref Vec3f v1, ref Vec3f v2, ref Vec3f v3)
{
v3.X = v1.X * v2.X;
v3.Y = v1.Y * v2.Y;
v3.Z = v1.Z * v2.Z;
}
public static void Vector3fMult(ref Vec3f v1, float s1, ref Vec3f v2)
{
v2.X = v1.X * s1;
v2.Y = v1.Y * s1;
v2.Z = v1.Z * s1;
}
public static void Vector3fAdd(ref Vec3f v1, ref Vec3f v2, ref Vec3f v3)
{
v3.X = v1.X + v2.X;
v3.Y = v1.Y + v2.Y;
v3.Z = v1.Z + v2.Z;
}
//public static void Lerp(Ray r, float delta, ref Vector3f coords)
//{
// //coords = r.Direction * delta + r.Origin;
// Vector3fMult(r.Direction, delta, ref coords);
//}
public static void Lerp(Vec3f origin, Vec3f direction, float delta, ref Vec3f coords)
{
//coords = direction * delta + origin;
Vector3fMult(ref direction, delta, ref coords);
Vector3fAdd(ref coords, ref origin, ref coords);
}