# Gen-2 Motion Brush

> Selective area animation tool for AI-generated video in Runway

Motion Brush is a feature in Runway Gen-2 that lets users paint over specific parts of a static image to add targeted movement. Instead of animating an entire scene unpredictably, it confines motion to selected areas like water, clouds, or vehicles.

Website: https://help.runwayml.com/hc/en-us/articles/21423169912595-Gen-2-Motion-Brush

## What it is for

- Animate specific elements in a still image like running water or rising smoke
- Add controlled motion to backgrounds while keeping subjects static
- Direct vehicle or character movement along specific paths in generated clips

## Features

- Brush tool to highlight exact regions of an image for animation
- Directional motion controls for selected areas
- Integration within Runway's Gen-2 video generation interface

## Pricing

Freemium. Included in Runway subscription tiers, which offer free credits and paid plans

## Details

- Type: Web app
- Category: [AI](https://xiry.app/topics/ai.md)
- Topic: [AI Video Generation](https://xiry.app/topics/ai/ai-video-generation.md)
- Open source: no
- Platforms: Web
- For: Video editors, animators, and digital artists
- Alternative to: Pika, Luma Dream Machine
- Tags: video generation, animation, runway, generative ai, image to video

## Why it was saved

- [@realrileybrown, 14 November 2023](https://www.instagram.com/reel/CzoO4wmgJe9/): Solves the unpredictability of AI video generation by giving creators precise control over which elements in a scene animate.

## Compare

- [Alternatives to Luma Dream Machine](https://xiry.app/alternatives/luma-dream-machine.md)
- [Alternatives to Pika](https://xiry.app/alternatives/pika.md)

## Related

- [Runway](https://xiry.app/resources/runway): AI creative suite for generating and editing video, images, and animation (Web app, Freemium)
- [Pika](https://xiry.app/resources/pika): AI platform generating and editing video, image, and synchronized audio. (Web app, Freemium)
- [Hailuo AI](https://xiry.app/resources/hailuo-ai): AI video and image generator known for cinematic motion and physics (AI model, Freemium)
- [invideo](https://xiry.app/resources/invideo): AI-assisted multitrack video editor and text-to-video generator for creators and teams. (Web app, Freemium)
- [Kling AI](https://xiry.app/resources/kling-ai): AI video and image generator with advanced motion control and physical simulation (Web app, Freemium)
- [Google DeepMind Veo](https://xiry.app/resources/google-deepmind-veo): Generative AI video model producing cinematic footage with native audio (AI model, Freemium)

Updated 3 October 2026. Page: https://xiry.app/resources/gen-2-motion-brush

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