Open-Sourced Fully Local, Free Pipeline Turns a Single Image into an Explorable 3D World

On August 25, @mickmumpitz posted a series of updates open-sourcing a fully local, free workflow that turns a single image into an explorable 3D world. The method builds on Skywork Matrix-3D, with the core idea of flying a virtual 360-degree drone through a scene to traverse and record the world, generating synthetic datasets for training Gaussian Splat.

Confirmed

The approach originates from Skywork's data production pipeline: a virtual 360-degree drone programmed in Unreal Engine 5 flew through 504 game environments and rendered 116,759 panoramic sequences with ground-truth depth and camera poses, used to train Matrix-3D to complete a full 3D world from a single panorama.
The workflow was shared step by step: estimate depth from a 360° panorama to build a coarse mesh; artifacts appear as soon as the camera moves, and Matrix-3D fills holes and "imagines" regions the photo never captured.
The author ported the pipeline to ComfyUI with lightx2v integration, and built a custom drone path editor for planning virtual camera trajectories inside panoramic scenes.
To fix the blur caused by Wan's 720p cap on 360 video stretched over the sphere, the author tried upscaling (too slow) and instead used known camera data and geometry to reproject the original 8K panorama directly onto the generated 360 video, preserving generated content while recovering sharp detail.

Why it matters

The entire pipeline runs locally and is free, lowering the barrier to single-image-to-3D-world generation; the synthetic-data-plus-Gaussian-Splat training paradigm and the 8K reprojection trick are valuable references for the 3D generation and panoramic video communities.

2026-08-25 ~ 2026-08-25 · 5 related posts

Primary sources

Turn a single image into an explorable 3D world — locally, for free — mickmumpitz · 2026-08-25 23:34 (UTC+08:00)
Skywork 360 pipeline ported to ComfyUI with a custom drone path editor — mickmumpitz · 2026-08-25 23:34 (UTC+08:00)
Skywork flew a virtual drone through 504 UE5 scenes, rendering 116K panoramas — mickmumpitz · 2026-08-25 23:34 (UTC+08:00)

One Panorama to an Explorable 3D World: Matrix-3D Fills the Holes — mickmumpitz · 2026-08-25
[source] Turn a single image into an explorable 3D world — locally, for free — mickmumpitz · 2026-08-25
[source] Skywork flew a virtual drone through 504 UE5 scenes, rendering 116K panoramas — mickmumpitz · 2026-08-25
[source] Skywork 360 pipeline ported to ComfyUI with a custom drone path editor — mickmumpitz · 2026-08-25
Wan 360 caps at 720p? Reproject the original 8K panorama back instead — mickmumpitz · 2026-08-25