code: public static Point2D_F64 renderPixel( DMatrixRMaj worldToCamera , Point3D_F64 X ) {
  		return renderPixel(worldToCamera,X,(Point2D_F64)null);
  	}
docs: Computes the image coordinate of a point given its 3D location and the camera matrix.
  
  @param worldToCamera 3x4 camera matrix for transforming a 3D point from world to image coordinates.
  @param X 3D Point in world reference frame..
  @return 2D Render point on image plane.