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4DV AI – 2D to 4D Video Conversion Using Gaussian Splatting logo

4DV AI

Visit 4DV AI
Pricing: Free
Editor rating: 3.9/5
Updated: July 2026

4DV AI converts regular 2D videos into interactive 4D volumetric scenes using AI-powered Gaussian Splatting, navigable in any browser.

Editor's take: “Interesting 4D Gaussian splatting approach, early-stage tech” — Sohail Akhtar

Free tier (verified July 2026): Free browser demo, no registration — catch: Demo only — upload/production access undisclosed

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Editor-selected listing
Independent & reader-supported

Editor's Verdict

Official Review
4DV AI is one of the most technically interesting video tools to emerge in 2025 — it makes a genuinely new kind of video experience accessible in a browser tab, which matters because previous volumetric video tech required hardware that most people and studios simply don't have. It's early stage, but if you work in immersive media, spatial storytelling, or VR content, this is worth watching and experimenting with now.
3.9 / 5.0
Editor Rating

Reviewed by Sohail Akhtar

Lead Editor & Founder

Pros

What we like

  • Running the entire 4D rendering pipeline in a web browser via PlayCanvas and WebGL removes the hardware barrier that has historically made volumetric video production inaccessible — users do not need a VR headset, specialized display, or powerful local GPU to navigate a 4D scene
  • The ability to convert single-camera standard video footage into a navigable 4D spatial scene is a significant step beyond traditional volumetric capture methods that required expensive synchronized multi-camera setups, making immersive content production feasible for individual creators and smaller studios
  • Spatial audio tied to viewer position within the reconstructed scene adds a meaningful layer of immersion that most 2D-to-3D video tools do not address, moving 4DV AI beyond a visual novelty toward a more complete sensory experience

Cons

Limitations

  • 4D video files generated by Gaussian Splatting carry substantially larger data payloads than standard video formats even with compression, which creates real bandwidth and load time constraints for delivering 4D content at scale to general audiences with variable internet connections
  • At the current stage, 4DV AI operates primarily as a demonstration platform with pre-processed sample content rather than a fully self-serve pipeline where users can upload their own videos and receive navigable 4D outputs — broad creator access to the upload and processing workflow is still in development

Pricing

✓ Free tier re-verified July 2026: Free browser demo, no registration — Demo only — upload/production access undisclosed

PlanDetails
FreeFree browser-based demo access with real-time 4D Gaussian Splatting viewer. No account, download, or hardware required. Pre-processed 4D video samples are available for interactive exploration directly in the browser.

4DV AI is currently free to access. The platform provides a public browser-based demo with pre-processed 4D video samples at no cost. No account registration is required to view the demo. Pricing details for full production access or upload capabilities have not been publicly disclosed.

What is 4DV AI?

Quick Summary

4DV AI is a free browser-based platform that converts standard 2D videos into fully interactive 4D volumetric experiences using a breakthrough rendering technique called 4D Gaussian Splatting, allowing viewers to move around scenes, change camera angles, and navigate spatial depth in real time without any hardware installation or VR equipment. It is built for filmmakers, educators, game developers, VR/AR creators, and media researchers who want to produce immersive, navigable video content from footage shot with a regular camera. 4DV AI is developed by a Chinese computer vision team and positions 4D video as the next evolution of visual media beyond flat 2D playback.

4DV AI is an AI-powered video transformation platform that rebuilds ordinary 2D video footage into explorable 4D spatial environments using 4D Gaussian Splatting — a technique that represents scenes as millions of semi-transparent 3D particles called Gaussians, each carrying color, depth, motion, and positional data. The AI analyzes each frame of the source video to extract depth information, reconstructs a full 3D scene per frame using this data, then layers time across those frames to produce a dynamic 4D structure. The result is a scene that users can navigate freely during playback: shifting the camera viewpoint, zooming in on details, panning, or rotating — all while the scene continues to unfold in real time. The rendering engine is built on PlayCanvas and WebGL, meaning the entire interactive experience runs directly in a web browser with no downloads, plugins, or special hardware required. Spatial audio adjusts based on the user's position within the scene, adding another layer of immersion beyond visual perspective. See similar solutions. The platform's demo is publicly accessible, featuring pre-processed 4D video samples that demonstrate real-time volumetric rendering in a browser environment. A GitHub codebase supports developers and researchers who want to build on or contribute to the underlying technology. 4DV AI is used by filmmakers creating interactive narrative experiences where viewers control their own camera perspective, by educators building immersive spatial lessons around historical events, architectural spaces, or scientific models, by game developers integrating real-world captured environments into virtual simulations, and by VR and AR studios looking to produce lifelike volumetric content from standard camera footage rather than expensive multi-camera rigs. Unlike 360-degree video which locks the viewer into a single fixed viewpoint, 4DV AI's 4D system allows genuine spatial movement — users are not choosing between preset angles but freely positioning themselves within the reconstructed scene. The core differentiator over legacy volumetric video approaches is accessibility: traditional 3D video reconstruction required multiple synchronized cameras and days of processing time, while 4DV AI generates navigable 4D content from a single standard video input and runs the result in a browser tab Read our guide.
Read the full overview
4DV AI represents an early-stage but technically significant platform. The primary limitations at this stage are file size — 4D video data is substantially larger than standard video even with compression, which affects load times and bandwidth requirements — and the fact that high-quality source input benefits from multi-camera setups despite the single-camera capability. See similar solutions. The tool currently showcases its technology through a demo viewer rather than a full self-serve upload pipeline for general users, meaning broad public content creation workflows are still in development. For researchers, developers, and forward-looking media professionals exploring volumetric video and the next generation of immersive content, 4DV AI is one of the few accessible entry points into production-grade 4D Gaussian Splatting technology running in a browser Read our guide.

Associated Tags

4dv ai, 4dv, 4d video, gaussian splatting, volumetric video, 2d to 4d video conversion, interactive video ai, 4d camera alternative

Key Features

2D to 4D video conversion using 4D Gaussian Splatting
Real-time camera navigation — pan, zoom, rotate, and reposition viewpoint during playback
Browser-based rendering via PlayCanvas and WebGL — no install or VR hardware needed
Spatial audio that adjusts based on viewer position within the scene
AI-based depth extraction and 3D scene reconstruction from single-camera input
Public interactive demo with pre-processed 4D video samples
Open GitHub codebase for developer and research access
Support for VR, AR, and mixed reality content workflows

Target Audience

Who should use 4DV AI?

Filmmakers and directors exploring interactive narrative formats where the audience controls camera perspectiveEducators and institutions building immersive spatial learning experiences accessible in a browserVR and AR content studios looking to produce volumetric video from standard footage without multi-camera rigsGame developers integrating real-world spatial captures into interactive simulationsComputer vision researchers and developers building on 4D Gaussian Splatting technology
Real Use Cases

How professionals leverage 4DV AI – 2D to 4D Video Conversion Using Gaussian Splatting

Discover practical workflows and real-world scenarios where 4DV AI delivers key solutions.

01

A filmmaker converting a standard video shoot into a navigable 4D scene where viewers choose their own camera angle and perspective, turning a linear film into an interactive experience

02

An educator building an immersive spatial lesson where students can move through a reconstructed historical site, architectural space, or scientific environment in a browser without VR headsets

03

A game developer using 4DV AI to capture a real-world environment on a regular camera and reconstruct it as a navigable 4D backdrop for a virtual simulation or game scene

04

A VR/AR studio using the platform to produce volumetric content from standard footage, reducing the multi-camera hardware overhead typically required for spatial video production

05

A researcher or developer exploring the 4DV AI GitHub codebase to build on 4D Gaussian Splatting technology for academic papers, prototypes, or production integrations

06

A sports or live event producer creating a 4D replay experience where viewers can replay the moment from any spatial position within the reconstructed scene

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Frequently Asked Questions

What is 4DV AI and how does it work?
4DV AI is a platform that converts standard 2D videos into interactive 4D volumetric experiences using 4D Gaussian Splatting — an AI technique that extracts depth and motion data from each video frame to reconstruct a navigable 3D scene that evolves over time. Users can move the camera freely, zoom, pan, and rotate within the scene during real-time playback directly in a browser.
Is 4DV AI free to use?
Yes — 4DV AI is currently free to access via its public browser demo, which includes pre-processed 4D video samples viewable without any account, download, or hardware. Pricing for full production access or user upload capabilities has not been publicly announced.
Do I need a VR headset or special hardware to use 4DV AI?
No — 4DV AI runs entirely in a web browser using PlayCanvas and WebGL. No VR headset, special display, GPU, or software installation is required to navigate and interact with 4D video content on the platform.
What is 4D Gaussian Splatting?
4D Gaussian Splatting is a rendering technique that represents a video scene as millions of semi-transparent 3D particles called Gaussians, each containing color, depth, and motion data. Adding time as a fourth dimension allows these particles to evolve frame by frame, producing a navigable spatial environment that users can explore from any viewpoint during playback.
What is 4DV AI best used for?
4DV AI is best suited for filmmakers building interactive narrative experiences, educators creating immersive spatial lessons, game developers capturing real-world environments, VR and AR studios producing volumetric content, and computer vision researchers working with Gaussian Splatting technology.
How is 4DV AI different from 360-degree video?
360-degree video locks the viewer into a fixed position and only allows rotation of the viewing direction. 4DV AI allows genuine spatial movement — users can physically reposition themselves within the reconstructed scene, move closer to objects, change depth, and navigate through the environment in ways that 360-degree video formats cannot support.