How to visualize a Gaussian Splat (3DGS) assets in Nira

3D Gaussian Splat (3DGS) is an innovative technique for capturing and rendering real world objects and environments. It provides the most realistic visualizations of reconstructed reality data from photos or laser scans using tools like Postshot, gsplat, or LCCStudio.  All applications that generate 3DGS data can export to the PLY format.  Nira supports PLY, SPZ, and SPLAT formats, but we recommend using PLY for the best visual quality.  PLY supports spherical harmonics and can be stored uncompressed. For optimal results, we suggest uploading uncompressed PLY files.

We’ll continue to update this help article with a more comprehensive list of tools and techniques as the 3DGS ecosystem evolves. Follow this page to stay informed about future updates.

Settings:

Adjust the Splat Size setting to visualize the points that make up each splat.

Modify the Max Spherical Harmonic Degree setting to reveal the reflective details of each splat.

Coordinate System:

• Postshot: Z-Up
• Postshot: Y-Up via Metashape Colmap
• XGRIDS: Y-Up for 3DGS splat, Z-Up for mesh
• Pix4D: Y-Up for 3DGS splat, Z-Up for mesh

Note for Pix4D and XGRIDS LccStudio: When uploading a 3DGS generated by Pix4D or LccStudio along with the 3D OBJ model, the two won't align correctly. Please reach out to Pix4D or LccStudio for a fix, or manually adjust the rotation of the 3DGS PLY or Mesh OBJ before uploading to Nira.

Supported Plans:

3DGS is supported on all current plans (Individual, Professional, and Enterprise), however, 3DGS is not supported on legacy plans such as Core or Business (Learn more).