What does the sketch effect do in compose?
Turn the picture into a pencil drawing. The picture as a pencil drawing.
Stylize
Pencil sketch effect for video
Turn the picture into a pencil drawing.
Shown on A VW bus on a causeway
The entry
Add it to a clip's effects list. Entries run in the order you write them.
{ "type": "sketch"}Settings
| Name | Accepts | Default | What it does |
|---|---|---|---|
| amount | 0 to 1or keyframes | 1 | 0 to 1. 1 is a pure pencil drawing on white, lower lets the original colours wash back in behind the lines. |
Run it
The whole request behind the render above. Paste it as it is, or swap the file for your own.
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/road.mp4" }, start: 0, effects: [ { type: "sketch" } ] } ] } ] } },});
console.log(outputUrl(job));Install with npm i @rendobar/sdk. jobs.run() submits and waits, so it returns the finished job in one call.
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/road.mp4"},"start":0,"effects":[{"type":"sketch"}]}]}]}}}'Returns immediately with a job id. Poll GET /jobs/{id} or register a webhook rather than blocking on the request.
Questions
How do I add sketch to a video with an API?
Send a compose job to the Rendobar API with this entry in the timeline: {"type":"sketch"}. 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.
What are the default settings for sketch?
Every setting has a default, so the type on its own is enough: amount 1. Set only the ones you want to change.
Footage and sound
- Loyalty Freak Music - 04 - Sweet Sun.ogg, by Loyalty Freak Music. CC0.
- Volkswagen T2.webm, by Coverr. CC0.
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. Scan lines The dark lines of a CRT monitor.