---
title: "Ray3 Modify"
description: "Ray3 Modify is here: edit and reimagine videos with precise keyframe and character reference controls for high-fidelity, consistent results."
canonical: "https://lumalabs.ai/news/ray3-modify"
source: "https://lumalabs.ai/news/ray3-modify.md"
---

# Introducing Ray3 Modify

_December 18, 2025_

Stop guessing. Start directing. Ray3 Modify is now in Dream Machine. Edit and reimagine videos with all-new precise keyframe and character reference controls powered by Ray3's high-fidelity consistency. Your vision. Your performance, reimagined. Supercharge your production with rapid retouching, precise element swapping, and scene redesign.

[Try in Dream Machine](https://dream-machine.lumalabs.ai/)

---

## Modify Video

Modify Video is drastically improved and now better maintains the physical logic, narrative coherence, and performance authenticity of your original footage. It supports layered, scene-aware transformations that behave as though they were captured naturally in camera.

### Workflow for Modify Video

[Learn more](https://lumalabs.ai/learning-hub/ray3-modify-user-guide)

### Use Cases

#### Wardrobe Swap

#### Environment Swap

#### Relighting

#### Virtual Product Placement

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## Modify with Keyframes

Now introduces Start and End Frame control to the video-to-video workflow for the first time. This allows you to guide transitions, control character behavior, and maintain spatial continuity across longer camera movement passes, reveals, and complex scene blocking.

### Workflow for Modify with Keyframes

[Learn more](https://lumalabs.ai/learning-hub/ray3-modify-user-guide)

### Use Cases

####

#### Magic Transitions

#### Virtual Crowd

#### Editing Reality

#### Doorway Threshold

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## Character Reference

Apply any custom character identity onto your original performance: a crucial functionality for actor-led projects with AI. For the first time ever, the feature provides you the ability to lock likeness, costume, and identity continuity of a specific character across an entire modified clip.

### Workflow for Modify with Character Reference

[Learn more](https://lumalabs.ai/learning-hub/ray3-modify-user-guide)

### Use Cases

#### Mythical Creatures

#### Human Characters

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## Real Performances, Reimagined

Keep your human performance at the center of your workflow. Skip the text prompts and direct with your physical actions. Your original movement, timing, and intent become the instruction. Shoot once, then reimagine form, environment, and identity while preserving motion, emotion, and authenticity through Ray3 Modify in Dream Machine’s hybrid AI production workflow.

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## Limitations

- Experiment with the Modify Strength Levels. Depending on what your modification is, you should set the value from adhere to reimagine for the best result.
- To ensure the instruction lands properly, make sure the target of the modification is present in the Start or End Frame.
- When uploading a video that is not part of the preset aspect ratios, we will crop into one of our preset aspect ratios. Video modification might degrade during this aspect ratio process.

[Try in Dream Machine](https://dream-machine.lumalabs.ai/) · [Explore All Ray3 Features](https://lumalabs.ai/ray)