public override void UpdateViewMatrix()
{
var r = Right;
var l = Look;
var p = Position;
l = Vector3.Normalize(l);
var u = Vector3.Normalize(Vector3.Cross(l, r));
r = Vector3.Cross(u, l);
var x = -Vector3.Dot(p, r);
var y = -Vector3.Dot(p, u);
var z = -Vector3.Dot(p, l);
Right = r;
Up = u;
Look = l;
ViewMatrix = new Matrix {
Row1 = new Vector4(r.X, u.X, l.X, 0),
Row2 = new Vector4(r.Y, u.Y, l.Y, 0),
Row3 = new Vector4(r.Z, u.Z, l.Z, 0),
Row4 = new Vector4(x, y, z, 1)
};
_frustum = Frustum.FromViewProjection(ViewProjectionMatrix);
}
public override void UpdateViewMatrix()
{
var sideRadius = _radius * MathF.Cos(_beta);
var height = _radius * MathF.Sin(_beta);
Position = new Vector3(
Target.X + sideRadius * MathF.Cos(_alpha),
Target.Y + height,
Target.Z + sideRadius * MathF.Sin(_alpha)
);
if (HeightFunc != null && Position.Y <= HeightFunc(Position.X, Position.Z) + 2.0f)
{
Position = new Vector3(Position.X, HeightFunc(Position.X, Position.Z) + 2.0f, Position.Z);
}
ViewMatrix = Matrix.LookAtLH(Position, Target, Vector3.UnitY);
Right = new Vector3(ViewMatrix.M11, ViewMatrix.M21, ViewMatrix.M31);
Right.Normalize();
Look = new Vector3(ViewMatrix.M13, ViewMatrix.M23, ViewMatrix.M33);
Look.Normalize();
_frustum = Frustum.FromViewProjection(ViewProjectionMatrix);
}
public override void UpdateViewMatrix()
{
ViewMatrix = Matrix.LookAtLH(Position, Target, Up);
_frustum = Frustum.FromViewProjection(ViewProjectionMatrix);
}