Halftone Lines Gradient

After running the script, set the desired tiling/alignment/angle values and press the Create button. It will open material editor and create a new map in its first slot. The gradient is Mapped which means that after you assign a Source Map in the slot, it will switch between its subtextures depending on the color value of the map.

With shadow/light falloff map it means that light values be mapped to thin lines and dark values to thick lines. You can also assign a bitmap texture and use Render Map... to create its halftone version. With 3d object, UVW mapping matters, the rightmost teapot is mapped with a Planar Map, the other ones use default teapot mapping.