Played around with some raster code the other day and discovered this one by accident. Thought it was nice enough that I should post it here.
This was how it started out. Nice effect I think.
Then I played around with the size of the cross-hatches and came up with this.
The script is pretty easy to work, just play around with it and you'll get the hang of it. Just make sure you have an image selected before you press the Rasterize-button.
Good luck!