public void Update()
{
lock (Transformation)
{
var tRotationMatrix = Matrix4.CreateFromQuaternion(Transformation.GetOrientation().Inverted());
var tViewMatrix = Matrix4.CreateTranslation(-Transformation.GetPosition()) * RotationMatrix;
if (cone == null)
{
var tcone = FrustumCone.Create(Transformation.GetPosition(), tViewMatrix, ProjectionMatrix);
cone = tcone;
}
else
{
FrustumCone.Update(cone, Transformation.GetPosition(), tViewMatrix, ProjectionMatrix);
}
RotationMatrix = tRotationMatrix;
ViewMatrix = tViewMatrix;
VPMatrix = Matrix4.Mult(ViewMatrix, ProjectionMatrix);
}
}
public void UpdateFromRollPitch()
{
lock (Transformation)
{
var rotationX = Quaternion.FromAxisAngle(Vector3.UnitY, Pitch);
var rotationY = Quaternion.FromAxisAngle(Vector3.UnitX, Roll);
Transformation.SetOrientation(Quaternion.Multiply(rotationX.Inverted(), rotationY.Inverted()));
var tRotationMatrix = Matrix4.CreateFromQuaternion(rotationX) * Matrix4.CreateFromQuaternion(rotationY);
var tViewMatrix = Matrix4.CreateTranslation(-Transformation.GetPosition()) * RotationMatrix;
if (cone == null)
{
var tcone = FrustumCone.Create(Transformation.GetPosition(), tViewMatrix, ProjectionMatrix);
cone = tcone;
}
else
{
FrustumCone.Update(cone, Transformation.GetPosition(), tViewMatrix, ProjectionMatrix);
}
RotationMatrix = tRotationMatrix;
ViewMatrix = tViewMatrix;
VPMatrix = Matrix4.Mult(ViewMatrix, ProjectionMatrix);
}
}