static public RaycastHit CastGetHit(this Ray item, float max_distance = float.PositiveInfinity, int layer_mask = IntBits.ALL_BITS)
{
RaycastHit hit;
item.Cast(out hit, max_distance, layer_mask);
return(hit);
}
public void Cast(Vector3 dir, float angle, float dist)
{
Reset();
if (VSL.refT == null)
{
return;
}
//cast the rays
var side = Vector3.Cross(VSL.Physics.Up, dir) * VSL.Geometry.R * 1.5f;
var cast_dir = Quaternion.AngleAxis(angle, side) * dir;
Valid |= L.Cast(VSL.Physics.wCoM - side, cast_dir, dist, VSL.Geometry.R);
Valid |= C.Cast(VSL.Physics.wCoM, cast_dir, dist, VSL.Geometry.R);
Valid |= R.Cast(VSL.Physics.wCoM + side, cast_dir, dist, VSL.Geometry.R);
if (Valid)
{
L.ClaculateAltitude(dir, angle);
C.ClaculateAltitude(dir, angle);
R.ClaculateAltitude(dir, angle);
Altitude = VSL.Altitude.Absolute - Mathf.Min(L.Altitude, C.Altitude, R.Altitude);
Ray ray;
if (L.Valid && !R.Valid)
{
ray = L; Maneuver = ManeuverType.Horizontal;
}
else if (!L.Valid && R.Valid)
{
ray = R; Maneuver = ManeuverType.Horizontal;
}
else if (C.Valid)
{
ray = C; Maneuver = ManeuverType.Vertical;
}
else if (L.Valid && R.Valid)
{
ray = R.Distance < L.Distance? R : L; Maneuver = ManeuverType.Vertical;
}
else
{
VSL.Log("Unknown ManevuerType of a Valid Sweep. This should never happen."); return;
}
Obstacle = new TerrainPoint(Altitude, ray.CollisionPoint);
}
}
public void TestCast()
{
Ray ray1 = new Ray(Vec3.Zero, Vec3.K); // Ray pointing up
Ray ray2 = new Ray(Vec3.Zero, -Vec3.K); // Ray pointing down
//Triangle floating above the rays
Triangle tri = new Triangle(
new Vec3(-1, -1, 1),
new Vec3(0, 1, 1),
new Vec3(1, -1, 1)
);
Vec3 hit1;
Vec3 hit2;
Assert.AreEqual(true, ray1.Cast(tri, out hit1));
Assert.AreEqual(new Vec3(0, 0, 1), hit1);
Assert.AreEqual(false, ray2.Cast(tri, out hit2));
}
public Color RenderPixel(int x, int y)
{
var pixelPosition = new Vector3D(x, y, 0);
var transformedPixelPosition = _scene.Camera.Transform.TransformationMatrix.TransformVector(pixelPosition);
Ray pixelRay = new Ray(transformedPixelPosition, _scene.Camera.Transform.Forward, _length);
pixelRay.Cast(_scene);
if (pixelRay.CollisionVectors.Count == 1)
{
return(Colors.Black);
}
else if (pixelRay.CollisionVectors.Count > 1)
{
return(_ambientColor);
}
//TODO: Add more color logics
return(_ambientColor);
}
