The LTX 2.3 Video Outpainting Workflow (Easy) is a user-friendly ComfyUI pipeline designed to expand the canvas of any input video by intelligently generating new content around it. Whether you want to extend the frame horizontally, vertically, or in all directions, this workflow fills empty regions with visuals that remain consistent in style, lighting, and motion with the original footage.With a simple setup, you can transform formats effortlessly—such as converting a portrait (9:16) video into a cinematic landscape (16:9)—while maintaining natural continuity across frames.
Key Features:
🖼️ Video Canvas Expansion (Outpainting)
Extend your video on the sides, top, bottom, or any combination, with seamless visual integration.
🎬 Temporal & Visual Consistency
Generated regions match the original footage in motion, lighting, and scene coherence.
📐 Flexible Aspect Ratio Control
Easily define output using W:H ratios such as 16:9, 1:1, 4:3, making resizing intuitive and fast.
⚡ Simple & Easy Workflow
Just upload your video, provide a prompt, and run—no complex setup required.
🧠 Prompt-Guided Generation
Adding a clear prompt helps guide the model to produce accurate and coherent expansions, reducing unwanted artifacts or hallucinations.
✨ Runs on FREE LTX API key
This workflow integrates a free LTX text encoder API, which removes the heavy computational load normally associated with local text encoders. By offloading this step: Get free api key here : https://console.ltx.video
How to Use:
1️⃣ Upload your input video
2️⃣ Upload a placeholder image (required to bypass FF option)
3️⃣ Set your desired aspect ratio (W:H)
4️⃣ Add a prompt describing the extended scene
5️⃣ Click Queue to generate the outpainted video
Performance Notes:
- Outpainting is computationally intensive and may take longer than standard video generation
- ULTRA PRO GPU is recommended for best performance and stability
- Results improve significantly with clear, descriptive prompts
Ideal Use Cases:
- Converting vertical videos to landscape format
- Expanding cinematic frames
- Social media content adaptation
- Creative video enhancement and reframing
The LTX 2.3 Video Outpainting Workflow makes it effortless to resize, expand, and enhance your videos—delivering smooth, coherent results with minimal effort inside ComfyUI.