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UELTX2: Unreal to LTX-2 Curated Video Generation
Generate cinematic placeholders, animated textures, and dynamic VFX locally inside Unreal Engine 5. A native bridge for Lightricks’ open-source LTX-2 model via ComfyUI. No cloud fees. 100% Private.

1. The Dynamic Asset Pipeline (VFX & Textures)
The Problem: Creating high-quality animated textures (Flipbooks/SubUVs) for fire, water, magic portals, or sci-fi screens requires complex simulations in Houdini or EmberGen, which take hours to set up and render.
The LTX-2 Solution:
Workflow: You prompt LTX-2: "Seamless looping video of green toxic smoke, top down view, 4k."
Result: You get a video file.
UE5 Integration: You automatically convert that video into a Flipbook Texture and plug it immediately into a Niagara Particle System.
Rationale: You can generate unique, specific VFX assets in 2 minutes inside the editor, rather than spending 4 hours in simulation software.


2. Rapid Pre-Visualization (Animatics)
The Problem: During the "Greyboxing" or layout phase, level designers usually put static mannequins in the scene. To visualize a cutscene or a complex event (e.g., a building collapsing), animators must create a "blocking" animation, which takes days.
The LTX-2 Solution:
Workflow: Place a 2D Plane in the level. Select it, type "Cyberpunk building collapsing into dust," and hit Generate.
Result: The plane plays the generated video.
Rationale: Directors and Level Designers can visualize timing, mood, and lighting of dynamic events zero animator hours. It allows for "Disposable Ideation": generating 20 variations of a cutscene idea before committing to the expensive 3D production.


3. In-World Screens and Moving Backgrounds
The Problem: Creating content for TVs, holograms, or distant dynamic backdrops (like a busy city outside a window) in a game world is tedious. Rendering them in real-time 3D wastes performance (Draw Calls).
The LTX-2 Solution:
Workflow: Use Image-to-Video. Take a screenshot of your game assets, prompt LTX-2 to "animate traffic," or "add tv static and glitch effects."
Result: A video file you map to a MediaTexture.
Rationale: You get high-fidelity, "3D-looking" motion on a cheap 2D surface. This saves massive amounts of GPU frame time compared to rendering actual 3D cars in the distance or simulating complex UI glitches.


Summary: The "Hybrid" Workflow
The ultimate point of this integration is the Hybrid Workflow.
Instead of:
Model -- Rig -- Animate -- Render -- Import
The workflow becomes:
Block out rough scene in UE5 -- Screenshot -- LTX-2 (Image-to-Video) -- Final Polish.
You use UE5 for structure and perspective (which it is perfect at) and use LTX-2 for detail, texture, and complex movement (which is hard to animate manually).


Additional stuff:

This plugin acts as a native bridge between Unreal Engine 5 and your local ComfyUI instance, allowing you to generate 4K-ready video assets, moving textures, and pre-vis animatics without ever leaving the Viewport.


⚡ Use Cases

Dynamic Textures (I2V): Right-click any static texture in your Content Browser and use Image-to-Video to bring it to life. Turn a static photo of smoke into a looping flipbook source, or animate a TV screen texture in seconds.

Rapid Greyboxing: Need a cinematic of a building collapsing for a level mock-up? Generate it in 60 seconds with Text-to-Video instead of spending 3 days animating blocks.

VFX Elements: Generate "magical aura" or "fluid simulation" video files to plug directly into Niagara Media Plates.


🔒 Enterprise-Grade Privacy

Your prompt data and game assets never leave your local network. UELTX2 runs on localhost, making it safe for NDA-bound projects where uploading concept art to external cloud servers is prohibited.


🛠 Core Features

Native Editor Panel: A dockable Editor Utility Widget for streamlined prompting.

Context Menu Integration: Right-click Actions for "Animate this Texture" (I2V).

Auto-Import Pipeline: Generated .mp4 files are automatically imported as FileMediaSource assets, ready to play.

Hybrid Workflow: Uses UE5 for the UI and ComfyUI for the heavy lifting (VRAM management).

Open Architecture: Fully customizable JSON templates. Change samplers, steps, or resolutions by editing the included JSON files.


⚠️ Technical Requirements (Read Before Using)

This plugin requires external software setup. It does not contain the AI model itself (which is 8GB+).
Hardware: NVIDIA GPU with 16GB VRAM (Minimum for Quantized GGUF) or 24GB+ VRAM (Recommended for Full Precision).
Backend: You must have ComfyUI installed locally.
Model: You must download the LTX-2 weights (free via HuggingFace).
OS: Windows 10/11 (Linux not supported in v1.0).



(c) Andras Gregori @ GregOrigin 2026
AI videos in this teaser are not LTX-2-generated due to my current VRAM / RAM insufficiency. Please note that you need a high-end rig for the simultaneous UE5 / LTX-2 workflow required by this plugin.