public Vector3 GetRandDirection(Spherical directionPivot, Spherical extends)
{
float jitHeading = -extends.Phi + (float)_rand.NextDouble() * (2 * extends.Phi);
float jitPith = -extends.Theta + (float)_rand.NextDouble() * (2 * extends.Theta);
Vector3 direction = Spherical.ToCartesian(directionPivot.Theta + jitPith, directionPivot.Phi + jitHeading);
return(direction);
}
public Vector3 GetRandDirection()
{
float jitPith = (float)_rand.NextDouble() * Numerics.PI;
float jitHeading = (float)_rand.NextDouble() * Numerics.TwoPI;
Vector3 direction = Spherical.ToCartesian(jitPith, jitHeading);
return(direction);
}
private void CreateLights()
{
_lights = new Frame[6];
Random ran = new Random();
Color3[] colors = new Color3[8]
{
new Color3(Color.Yellow.ToArgb()), new Color3(Color.Red.ToArgb()), new Color3(Color.Green.ToArgb()), new Color3(Color.LightCoral.ToArgb()),
new Color3(Color.DarkBlue.ToArgb()), new Color3(Color.Gray.ToArgb()), new Color3(Color.IndianRed.ToArgb()), new Color3(Color.LightSalmon.ToArgb())
};
float step = Numerics.TwoPI / _lights.Length;
Spherical spherical = new Spherical(Numerics.PIover2, 0);
for (int i = 0; i < _lights.Length; i++)
{
var light = new Light()
{
Diffuse = colors[i % 8],
//Diffuse = new Vector3((float)ran.NextDouble(),(float)ran.NextDouble(),(float)ran.NextDouble()),
Specular = new Vector3(0.2f, 0.2f, 0.2f),
Type = LightType.Point,
Enable = true
};
spherical.Phi = step * i;
var pos = spherical.ToCartesian() * 300;
pos.Y = 50;
var instance = new FrameLight(light);
var node = SceneManager.Scene.Create("light" + i, instance,
localPosition: pos,
localRotationEuler: Euler.FromDirection(new Vector3(0, -1, 0)),
localScale: new Vector3(1, 1, 1));
SceneManager.Scene.Dynamics.Add(new Dynamic(x =>
{
Frame n = node;
n.LocalPosition = Vector3.TransformCoordinates(n.LocalPosition,
Matrix.RotationY(Numerics.ToRadians(1)));
n.ComputeLocalPose();
n.CommitChanges();
}));
_lights[i] = node;
}
}
void Update()
{
sphericalPosition += speed * Time.deltaTime;
transform.position = sphericalPosition.ToCartesian();
}