internal static Matrix CubeFaceViewMatrix(Vector3 pos, int faceId)
{
Matrix viewMatrix = Matrix.Identity;
switch (faceId)
{
case 0:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Left, Vector3.Up);
break;
case 1:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Right, Vector3.Up);
break;
case 2:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Up, -Vector3.Backward);
break;
case 3:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Down, -Vector3.Forward);
break;
case 4:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Backward, Vector3.Up);
break;
case 5:
viewMatrix = Matrix.CreateLookAt(pos, pos + Vector3.Forward, Vector3.Up);
break;
}
return(viewMatrix);
}
public static void UpdateCamera()
{
ViewMatrix = m_viewMatrix;
ViewProjectionMatrix = ViewMatrix * ProjectionMatrix;
UpdateVectors();
UpdateBoundingFrustum();
ViewMatrixAtZero = Matrix.CreateLookAt(Vector3.Zero, ForwardVector, UpVector);
ViewProjectionMatrixAtZero = ViewMatrixAtZero * ProjectionMatrix;
CornerFrustum = CalculateCornerFrustum();
ProjectionMatrixForFarObjects = Matrix.CreatePerspectiveFieldOfView(FieldOfView, AspectRatio, NEAR_PLANE_FOR_BACKGROUND, FAR_PLANE_FOR_BACKGROUND);
}
