Lazy Nezumi Perspective Rulers
The sketching is not too impressive (just scribbling), but shows how Lazy Nezumi's rulers can be useful for perspective sketching. There is fisheye perspective as well.
http://lazynezumi.com/
The sketching is not too impressive (just scribbling), but shows how Lazy Nezumi's rulers can be useful for perspective sketching. There is fisheye perspective as well.
http://lazynezumi.com/