Create motion graphic videos using Codex + Remotion

This method turns text into videos using AI agents. You describe the video, the system writes code, and the video renders automatically.

1. Understand the setup

You are using:

→ Codex
↳ OpenAI’s all in one AI workspace

→ Remotion plugin
↳ converts code into motion graphics

→ GPT-5 level reasoning inside Codex
↳ handles complex instructions

You are not editing videos.
You are directing a system.

2. Install Codex and create a project

1. Download Codex desktop
2. Open it
3. Create a new project folder

→ Example: “remotion project”

Why this matters:

→ keeps all videos organized
→ lets you create multiple videos in one workspace

3. Install the Remotion plugin

Inside Codex:

→ Go to Plugins
→ Search “Remotion”
→ Install

After this:

→ Codex can generate videos
→ You can trigger it using prompts

4. Create your first video

Start simple.

Type:

@remotion-video create a simple hello world animation with black text on white background

What happens:

→ AI writes code
→ Runs locally
→ Gives a preview link

Open the localhost preview.

You now have your first video.

5. Understand core concepts

You need to know 4 things:

1. Composition

→ a full video or scene

2. Timeline

→ duration of video

3. Sequences

→ multiple scenes inside one video

4. Assets

→ images, logos, audio files

Everything you build uses these.

6. Add assets to your video

Example:

1. Download logos or images
2. Drag into your project folder

Then prompt:

@remotion use codeex.png and remotion.png
place them on screen with animation

What happens:

→ AI detects assets
→ inserts them into video
→ animates them

7. Build scenes step by step

Instead of one big prompt, iterate.

Example flow:

→ Add logos
→ Add text
→ Add animation
→ Adjust timing

Example prompt:

extend scene by 2 seconds
animate logos off screen
change text to “full guide”

Key rule:

Be specific.

Better input = better output.

8. Control animations precisely

You can go deeper:

→ reference frames
→ change transitions
→ modify motion style

Example:

at frame 417
replace text with typing animation
instead of fade

Also:

Use screenshots to guide AI.

→ circle what you want changed
→ upload
→ explain clearly

This removes confusion.

9. Create multiple scenes

You can build full videos.

Example prompt:

create 3 new scenes:

scene 1: typing interface
scene 2: loading animation
scene 3: show final rendered video

keep background consistent

Result:

→ AI adds sequences
→ builds full storyline

10. Add music

1. Download audio (mp3)
2. Drag into project folder

Prompt:

@audio.mp3
add this at 75% volume across entire video

Now your video has sound.

11. Create reusable brand assets

Create a “brand assets” composition.

Include:

→ gradients
→ background patterns
→ logos
→ UI elements

Then reuse:

use red gradient from brand assets

This keeps videos consistent.

12. Refine with iteration

You will not get perfect output in one prompt.

Fix things like:

→ wrong animation
→ bad transitions
→ timing issues

Example:

remove this line
keep the animation ball
make transition smoother

This is normal.

13. Final rendering

When ready:

→ Click Render
→ Choose format (MP4 H.264)

Output:

→ export video
→ upload to social platforms

14. What makes this powerful

This is not a video tool.

This is a system:

→ AI agents write code
→ automation builds video
→ you guide outcomes

Speed difference:

→ manual editing: hours
→ this workflow: minutes

15. When to use this

Best use cases:

→ social media videos
→ product launches
→ explainer clips
→ UI demos
→ quick content production

Not ideal yet for:

→ high end cinematic work
→ complex VFX

Final takeaway

You are not learning editing.

You are learning:

→ how to think in scenes
→ how to describe motion
→ how to guide AI systems

That is the real skill.

Once you understand this:

You can create any video.