Capturing Building Exteriors and Gardens for a Gaussian Splat
Sky, moving leaves and changing sun all work against an exterior capture. Here is how outdoor Gaussian splatting holds up on a facade and a garden, and the choices that decide it.
Outdoor Gaussian splatting turns photos or video of a building and its grounds into a scene you can walk around in a browser. It works well on facades. It struggles with the parts of a garden that move. Most of the difference between a clean result and a smeared one is settled before the first frame is recorded.
An exterior is a harder subject than a room. There is no ceiling to hold the light steady, the sky is a bright blank, and the sun keeps moving while you work. This guide covers the choices that matter: when to shoot, how to fly or walk the path, and what to expect from foliage.
How is outdoor Gaussian splatting different from an interior capture?
Three things change the moment you step outside. The sky has no texture, so the reconstruction has nothing to lock onto above the roofline. Light changes while you capture. And much of what you are pointing at is alive and moving.
Inside, a splat is built from frames that agree with each other. Outside, a frame taken at the start of a twenty-minute walk and one taken at the end may disagree about where the shadows fall, and the solver has to reconcile them. Every decision below is about reducing that disagreement.
When is the best time to capture a building exterior?
Shoot under an even overcast sky, or in open shade, when you can choose. Flat light means a wall looks the same from every angle, so frames taken from different positions agree. Hard sun does the opposite: a shadow that sweeps across a facade during the capture gets baked in as texture, and the splat shows two different buildings stitched at the seam.
If the sun is out, work fast and keep it behind you or high overhead. Finish the whole path inside one short window instead of returning after lunch. Avoid the hour around sunrise and sunset, when the light changes quickly and shadows lengthen with every pass.
Wind matters as much as light. A still day gives you crisp hedges and standing flowers. A breezy one gives you a garden that moves between frames, which the reconstruction cannot place.
How should the drone orbit path be flown?
A drone orbit path is a loop around the building at a fixed radius with the camera pointed at the centre. Fly it as several loops at different heights instead of one. A single ring gives each wall one viewing angle, and the splat looks fine from the ring and falls apart anywhere off it.
A workable layout is a low orbit near eaves height, a second at roughly double that, and a third higher and farther out, with the camera tilted down. Keep the building roughly the same size in frame on each loop. Overlap between neighbouring frames should be generous, because a splat is only as sharp as the number of views that saw a given surface. Our guide on how many photos a splat needs goes into the counts.
Fly slowly. Motion blur on a fast pass costs you the fine detail that makes brickwork and window frames read as real. Hold the camera shutter fast enough to freeze the image, and lock exposure so brightness does not pump as the drone swings from the sunlit side to the shaded one.
In the United States, FAA Part 107 caps small drone flights at 400 feet above ground level, and allows more only when you stay within 400 feet of a structure (FAA, Part 107, 2026). Rules differ by country and by airspace, so confirm local limits before you plan loops.
Flying is optional. A house with a clear approach can be walked with a phone or camera at head height, then the drone adds only the roof and upper storeys. Either source goes in as ordinary photos or video; the video to 3D route accepts drone footage as is, and photo input accepts stills from a phone, DSLR or drone.
How do you capture a facade from the ground?
Walk a line parallel to the wall, never a fan from one spot. Standing still and rotating gives the solver almost no change in viewpoint, and the depth it recovers is a guess. Sideways movement is what lets it triangulate the wall.
Do two passes along the facade, one with the camera square to the wall and one angled slightly up and slightly down. Then step back far enough to get the whole front in a single frame, and repeat. Close passes give texture, and distant ones give geometry that holds together.
Windows and glass are the weak point. A pane that reflects the street shows a different reflection from every position, so the splat renders a smeared version of it. Do not fight it. Capture the glass from several angles, accept that it will shimmer, and keep the reflection of yourself out of the frame by moving your body position between passes.
Why do gardens and foliage come out soft?
Because leaves move and the algorithm assumes they do not. Each frame that sees a branch in a slightly different place votes for a different position, and the result is a fuzzy cloud where you saw a crisp shrub. Fine, thin things such as grass blades, wire fences and bare winter twigs suffer most.
Hard structure survives. Paving, walls, steps, garden furniture and mature trunks reconstruct cleanly. For outdoor Gaussian splatting, treat the planting as atmosphere and the hard landscaping as the subject, and the outcome will match your expectations.
Three habits help. Shoot on a calm day. Pass each plant quickly instead of lingering. And do not move anything mid-capture, including a hose or a gate, because an object that changes position between frames becomes a ghost. If floaters do appear around hedges or at the edge of the sky, removing floaters from a splat covers the clean-up.
Where does the sky go wrong?
The sky has no features, so it has no reliable depth. Reconstructions typically fill it with a loose shell of floaters or a hard dome, and either one can wash over the top of the building when you look up from below.
The cleanest fix is to keep the camera pointed at the subject rather than at the horizon. Angle the drone down, and do not record long stretches of empty sky between objects. A solid grey overcast helps here too, since a uniform sky is easier to cap than a patchy blue one with clouds drifting across it.
Which settings and kit decisions matter most?
| Decision | Hold up well | Cause trouble |
|---|---|---|
| Light | Even overcast, open shade | Hard sun with moving shadows |
| Orbit | Several loops at different heights | One ring at one height |
| Movement | Sideways, parallel to the wall | Standing and rotating |
| Camera | Locked exposure, fast shutter | Auto exposure, slow shutter |
| Subject | Brick, stone, paving, trunks | Glass, grass, wire, thin twigs |
Resolution matters less than consistency in outdoor Gaussian splatting. A sharp, evenly exposed set at a modest resolution beats a mixed set of 4K frames that disagree on brightness.
What happens after the capture?
Upload the photos or video and the cloud reconstruction runs without a local GPU. On Captures Studio, processing takes from 10 to 120 minutes depending on the size of the scene. You open the result in the browser, trim stray floaters in the Splat Editor, and share it as a link, an embed or a QR code that opens on a phone with no app.
Once a scene exists, a reference of known length in the frame, such as a door or a marker, lets you scale it to real-world size and measure distances directly in the scene. Plan one into the shot list if you expect anyone to measure a facade later. Do not rely on a figure for accuracy: how close a reading gets depends on the reference and on the quality of the capture.
Outdoor Gaussian splatting also records change, because an exterior shifts with the seasons. Capture the same garden again in winter and Multi Splat aligns the two scenes so you can compare them and render a timelapse to MP4.
FAQ
Can you capture a house exterior with just a phone?
Yes, for a facade, a front garden or a courtyard you can walk around. Move sideways along each wall, keep the exposure locked, and shoot on an overcast day. A phone struggles with tall buildings, where a drone is needed to see the upper storeys and the roof.
What is the best time of day to capture a building exterior?
Overcast midday, or the open shade side of a building. Flat light keeps colour and shadow consistent from frame to frame. Avoid sunrise and sunset, when light shifts quickly, and avoid hard midday sun if a shadow will cross the facade during your capture.
Why does my garden look blurry in a splat?
Moving foliage. Leaves and grass shift between frames, so the solver cannot agree on one position and averages them into a soft cloud. Capture on a calm day, pass each plant quickly, and treat the planting as background to the hard landscaping.
How many orbits does a drone capture need?
More than one. Fly at least two loops at different heights, ideally three, with the camera aimed at the building each time. A single ring gives each wall only one angle, so the splat looks right from that ring and breaks anywhere else.
Why does the sky look strange in my splat?
It has no texture, so the reconstruction cannot place it. You get floaters or a hard dome around the top of the scene. Angle the camera down, avoid long shots of empty sky, and clean up what remains in the editor.
A facade is a patient subject, a garden is not, and the sky is neither. If you plan around those three facts, light, path and movement are the only variables left to control, and you control all of them before you press record. The reconstruction is the easy part.