Stylize

Scan lines effect for video

The dark horizontal lines of a CRT monitor.

Shown on Ban Jelačić square in Zagreb at blue hour

Before · the same request without it
After · The dark lines of a CRT monitor.

The entry

Add it to a clip's effects list. Entries run in the order you write them.

{
  "type": "scanLines"
}

Run it

The whole request behind the render above. Paste it as it is, or swap the file for your own.

job.ts
import { createClient, outputUrl } from "@rendobar/sdk";


const rb = createClient({ apiKey: process.env.RENDOBAR_API_KEY });


const job = await rb.jobs.run({
  type: "compose",
  params: {
    schemaVersion: 1,
    output: {
      format: "mp4",
      resolution: {
        width: 960,
        height: 540
      }
    },
    timeline: {
      tracks: [
        {
          clips: [
            {
              asset: {
                type: "video",
                src: "https://cdn.rendobar.com/compose/showcase/media/night.mp4"
              },
              start: 0,
              effects: [
                {
                  type: "scanLines"
                }
              ]
            }
          ]
        }
      ]
    }
  },
});


console.log(outputUrl(job));

Install with npm i @rendobar/sdk. jobs.run() submits and waits, so it returns the finished job in one call.

terminal
curl https://api.rendobar.com/jobs \
  -H "Authorization: Bearer $RENDOBAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"type":"compose","params":{"schemaVersion":1,"output":{"format":"mp4","resolution":{"width":960,"height":540}},"timeline":{"tracks":[{"clips":[{"asset":{"type":"video","src":"https://cdn.rendobar.com/compose/showcase/media/night.mp4"},"start":0,"effects":[{"type":"scanLines"}]}]}]}}}'

Returns immediately with a job id. Poll GET /jobs/{id} or register a webhook rather than blocking on the request.

Questions

What does the scanLines effect do in compose?

The dark horizontal lines of a CRT monitor. The dark lines of a CRT monitor.

How do I add scan lines to a video with an API?

Send a compose job to the Rendobar API with this entry in the timeline: {"type":"scanLines"}. Add it to a clip's effects list. Entries run in the order you write them. The request on this page is complete and renders as shown.

Footage and sound

More in the reference

Camera shake Handheld energy on a steady shot. The frame's edges never show. Glitch Digital break-up for a beat or a scene change, kept light enough that the shot underneath still reads. Pixelate Large square pixels over the whole picture. Posterize Flatten the picture into a few steps of each color, like a screen print. RGB shift Red and blue pulled apart sideways for an analog edge, kept to a fringe so the shot underneath still reads. Sketch The picture as a pencil drawing.

See all 77 in the effects reference →