Speed Lines: What It Is and How to Prompt It

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Speed Lines

  • motion lines
  • action lines
  • drawn motion

Speed drawn as straight lines behind the subject, rather than blurred by a camera.

Draw this style

Opens an image model with the prompt in it. The price is on the page before you sign in.

What it is for

A camera blurs what moves, so a drawing has no equivalent and had to invent one. Straight lines behind a sharp figure say fast without sacrificing the drawing, which is why they read better than blur in a still picture.

How it works

Parallel straight lines fill the background, running along the direction of travel and often converging on a point behind the subject. The figure stays entirely sharp. A few lines cross the trailing edge of the body so the two layers connect.

When to use it

Use it whenever something has to look fast in a still frame. Avoid it in a picture that also wants atmosphere, because the lines replace the background completely.

Told apart from its neighbours

Impact Frame throws the drawing away for a moment. Shonen Ink is the page these usually appear on. Motion Blur in the cinema catalogue is the photographic answer to the same problem.

Where it is used

It carries a sports graphic, an advertisement, a comic panel and any thumbnail that has to convey speed at a glance.

  • Manga and comics of every genre
  • Advertising and sports graphics

The prompt

Replace the blanks with your own character, keep the rest. Then run it on an image model.

<character>, drawn with speed lines, dense straight parallel lines filling the whole background and running in the direction of travel, the lines converging toward a point behind the figure, the character itself drawn sharp and completely in focus, a few lines overlapping the trailing edge of the body, black ink lines on white, no photographic blur anywhere

Run it

What goes wrong

A blurred photograph of a moving figure comes back. Ban motion blur by name and ask for the character to stay completely in focus.

Leave out

motion blur, a blurred subject, a photographic background, soft edges, curved decorative lines

Watch for

The figure stays sharp. Motion blur and speed lines are two different answers to the same problem, and a model will add blur unless it is banned by name.

Questions

Blur destroys the drawing. Speed lines say fast while leaving the character completely readable, which matters more in a single picture than photographic accuracy does.

Draw it

Pay for the one run. No subscription, and the price is on the model page before you sign in.

Draw this style

Next to it in shape and motion