Picture effects

Color grading effect for video

Grade the picture by hand. Every parameter is optional, and one left out leaves that quality unchanged.

Shown on A woman on forest steps

Before · the same request without it
After · A warm cinematic grade: the light pulled towards gold, contrast and color lifted a little, skin left believable.

The entry

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

{
"type": "color",
"temperature": 5200,
"contrast": 1.18,
"saturation": 1.12,
"brightness": 0.04
}

Every setting and default is in the docs

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/steps.mp4"
},
start: 0,
effects: [
{
type: "color",
temperature: 5200,
contrast: 1.18,
saturation: 1.12,
brightness: 0.04
}
]
}
]
}
]
}
},
});
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/steps.mp4"},"start":0,"effects":[{"type":"color","temperature":5200,"contrast":1.18,"saturation":1.12,"brightness":0.04}]}]}]}}}'

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

Questions

What does the color effect do in compose?

Grade the picture by hand. Every parameter is optional, and one left out leaves that quality unchanged. A warm cinematic grade: the light pulled towards gold, contrast and color lifted a little, skin left believable.

How do I add color to a video with an API?

Send a compose job to the Rendobar API with this entry in the timeline: {"type":"color","temperature":5200,"contrast":1.18,"saturation":1.12,"brightness":0.04}. 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 color?

Set at least one of brightness, contrast, saturation, gamma, hue, or temperature. Any you leave out stay neutral.

Footage and sound