Ordinary video in, a real 3D Gaussian splat out, trained locally on one GPU for $0. Every flythrough below is rendered FROM the splat — none of it is source footage.
Each entry says which clip it came from, because the useful finding is which sources reconstruct and which do not.
Lead
Composer EnvironmentVideo, Love Bird Birdhouse — Season 1. Two approved clips joined: “The Palm Tree (master pull-back)” + “The Palm Tree → Front Gates”.
TRIM: the last 0.208s of the gates clip was cut (kept 0→2.00s of 2.208s). From about t=2.06 the front gates begin to swing open, and that motion alone broke the solve — the same clip untrimmed registers 2 of 50 frames. Pip’s door needed no trim: it is shut and static for the whole first leg. Both doors closed in every frame, as instructed.
Left: a frame of the source video. Right: the trained splat from a camera angle that never existed in the source. Soft, because the source is 95 frames of 854×480 covering a whole tree and a jungle horizon — but the trunk, the nest cavities and the pods are all really there in 3D.
Unreal Engine 5 editor viewport capture — the first source that proved the lane end to end.
Every frame rendered from the trained splat — none of it is the source clip.
Left: the source video. Right: the reconstruction, from an angle that never existed in the source.
| Environment clip | Frames | Registered | 3D points | Verdict |
|---|---|---|---|---|
| The tree, outside (trimmed, joined) | 95 | 95 / 95 — 100% | 11,426 | TRAINED |
| The Pool · orbit | 61 | 61 / 61 — 100% | 4,588 | trained — near-planar, not shown |
| The Palm Tree (master pull-back) | 50 | 50 / 50 — 100% | 5,769 | passes (leg 1 above) |
| Pip’s Home — Orbit & Exit | 61 | 15 / 61 — 24.6% | 2,710 | below gate |
| The Palm Tree → Front Gates (untrimmed) | 50 | 2 / 50 — 4.0% | 743 | fails — the moving gates |
| Pip Home Interior → Exterior | 61 | 2 / 61 — 3.3% | 53 | fails — travels through a doorway |
| Pip’s Home Exterior → The Palm Tree | 61 | 2 / 61 — 3.3% | 20 | fails |
| Wide → Pip’s Home Exterior | 61 | 2 / 61 — 3.3% | 13 | fails — ends inside |
| Bird House · master pan | 97 | 2 / 97 — 2.1% | 2 | fails |
One honest exception: The Pool orbit registers every frame and trains to 196,843 gaussians, but the camera barely translates, so the result is a near-flat sheet rather than a volume — full marks on the solve, no real depth. It is not shown above, because a splat with no parallax is a photograph wearing a 3D costume. Registration is necessary, not sufficient; what a splat needs is BASELINE. The pattern: clips whose camera stays outside and moves through space reconstruct. Clips that pass through a doorway, or that contain a door in motion, do not — a moving door is geometry that contradicts itself between frames, and structure-from-motion has no way to reconcile it. That is why the trim mattered.