Gaussian Splatting and photogrammetry are complementary technologies, not competitors. The right choice depends on what you need the output for.
Head-to-Head Comparison
| Aspect | Photogrammetry | Gaussian Splatting |
|---|---|---|
| Accuracy | 1–3cm (with GCPs) | ~7.82cm mean geometric error |
| Rendering | Static mesh, slow to render | Real-time 60+ FPS |
| Complex materials | Struggles with glass, vegetation, water | Excels at transparency, reflections, foliage |
| CAD/BIM support | Full — OBJ, LAS, E57, DXF | Limited — PLY, 3DTiles |
| Processing speed | Hours to days | Minutes to hours |
| File size | Large meshes (GB) | Compact splat files (MB–low GB) |
| Standards | Mature (OGC, ISO) | Emerging (OpenUSD, glTF KHR) |
When to Choose Photogrammetry
- Engineering measurement and dimensional accuracy
- Construction coordination and as-built documentation
- Volumetric calculations and earthwork analysis
- CAD/BIM deliverables for architects and engineers
- Regulatory compliance and legal documentation
When to Choose Gaussian Splatting
- Client presentations and stakeholder engagement
- Real estate marketing with photorealistic virtual tours
- Virtual production environments for film/VFX
- Design review with realistic material appearance
- Public engagement for urban planning projects
The Professional Answer: Use Both
DJI Terra V5.0+ processes the same aerial photographs into both a photogrammetric mesh AND Gaussian Splats. THE FUTURE 3D captures a single dataset and delivers both measurement-grade data and photorealistic visualization from one site visit. GS processing is an add-on at 1.5× the standard photogrammetry rate.
See the full technical comparison at GS vs Photogrammetry or explore how 3D scanning works. Get a quote →