Hello 
Light Pattern is a small tool, it add light + texture plane by 1 click.
- Add Light + texture plane , the plane is set parent to light,
when you move and rotate the light, the plane follows. - Add cycles material to plane, it has default wave texture node, noise, image texture, texture coord, mapping, color ramp, all connected.
It is convenient for creating light pattern. Just set any image to the image texture node and make some good lighting.
It is free 
