public LatticePoint(float x, float y, float z, MetaballSystem system)
 {
     PosX        = x;
     PosY        = y;
     PosZ        = z;
     this.system = system;
     lastFrame   = 0;
 }
            public Lattice(int dimensionX, int dimensionY, int dimensionZ, MetaballSystem system)
            {
                this.dimensionX = dimensionX;
                this.dimensionY = dimensionY;
                this.dimensionZ = dimensionZ;
                this.system     = system;

                GenerateLattice();
            }