anchor: Texture:setFilter
  Sets the filter mode of the Texture.
  Texture:setFilter( min, mag, anisotropy )
  min FilterMode Filter mode to use when minifying the texture (rendering it at a smaller size on-screen than its size in pixels).
  mag (min) FilterMode Filter mode to use when magnifying the texture (rendering it at a larger size on-screen than its size in pixels).
  anisotropy (1) number Maximum amount of anisotropic filtering to use.