Radiance Fields in St. Peter's Basilica

One of the most iconic landmarks gets hyper-real.

One of the most iconic landmarks gets hyper-real.

Michael Rubloff

Michael Rubloff

Michael is the Founder and Managing Editor of Radiancefields.com

St. Peter's Basilica Gaussian Splatting

It’s no secret that educational applications for radiance field work hold immense potential. Over the past two years, we’ve demonstrated several examples of such use cases.

Today, we’re showcasing the largest endeavor to date—one that I came across this morning from the Microsoft team, in collaboration with Iconem.

This project is a complete reconstruction of St. Peter’s Basilica in Vatican City. It represents a massive achievement, involving over 400,000 individual still images paired with other modalities like LiDAR. What’s particularly exciting is that they’ve created an interactive version of the church, available through the YouTube video description. As I clicked through the examples, it became immediately obvious what the team had used for the reconstruction: Radiance Field reconstruction method, Gaussian Splatting.

This interactive and educational use case of Radiance Field technology, specifically Gaussian Splatting, is a remarkable departure from traditional photogrammetry—using an entirely different set of technologies. It is clearly a 3DGS implementation, with its distinctive spiky Gaussians and view-dependent effects on full display. While some of the captures are better than others, the sheer level of detail packed into these representations, combined with the ability to explore them interactively on the web, is no small feat.

Take a closer look at the example within the dome. Zoom in continuously, and the details just come alive. Additionally, you can click on the. “i” icon next to the timeline to see more information about the space. The project offers countless small details and explorable sections of the church, and I highly recommend taking some time today to click through and experience this iconic structure. You can find the demo here, and additional information about the project here.

Neither Microsoft nor Iconem have commented publicly on their use of the radiance field method yet, but there’s no denying the technology on display here.

Microsoft has been notably quiet in the realm of Radiance Field research and products compared to fellow tech companies like Meta, Google, and NVIDIA. But perhaps this marks the beginning of many Radiance Field-based initiatives for the tech giant. The experience can be found here.

I expect we’ll see more and more of the world’s most iconic landmarks preserved in hyper-real 3D using Radiance Field-based methods in the coming months. If you’re interested in creating an educational experience with 3DGS, I recommend checking out StorySplat as a tool to help build it.

Thumbnail for Gaussian Splatting News episode 12

11:38

Watch · New every Monday

Splats Come to Fortnite, Nike Shoots in 4D, Splats on a Nintendo 3DS

Episode 12 · Nov 9, 2026

Epic’s UEFN 43.00 brings Gaussian splats into the Unreal Editor for Fortnite, importing PLY and SPZ files that render on every platform UEFN supports, mobile included.

Featured

Recents

Platforms

Unreal Engine 5.9 Preview Adds Experimental Gaussian Splats

Unreal Engine 5.9 MegaJam Preview lists experimental Gaussian splat import on its roadmap, bringing PLY and SPZ splats into the world with Niagara integration.

Michael Rubloff

Nov 11, 2026

Platforms

Unreal Engine 5.9 Preview Adds Experimental Gaussian Splats

Unreal Engine 5.9 MegaJam Preview lists experimental Gaussian splat import on its roadmap, bringing PLY and SPZ splats into the world with Niagara integration.

Michael Rubloff

Guest Article

Training Gaussian Splats From Renders, Not Photos

Most 3DGS pipelines start with a camera and end with a scene you look at. Mine starts with a mesh and ends with a boss you shoot apart. Here is what changes.

zakons

Nov 11, 2026

Guest Article

Training Gaussian Splats From Renders, Not Photos

Most 3DGS pipelines start with a camera and end with a scene you look at. Mine starts with a mesh and ends with a boss you shoot apart. Here is what changes.

zakons

Platforms

SpAItial Opens Its Echo-3 API to Every Developer Account

SpAItial's Echo-3 API is now open to every developer account, turning a ZIP of phone frames into a metric-scale Gaussian splat for 900 credits plus 1 per frame.

Michael Rubloff

Nov 11, 2026

Platforms

SpAItial Opens Its Echo-3 API to Every Developer Account

SpAItial's Echo-3 API is now open to every developer account, turning a ZIP of phone frames into a metric-scale Gaussian splat for 900 credits plus 1 per frame.

Michael Rubloff

Platforms

Esri Adds Viewshed and Shadow Cast Analysis to Splats

ArcGIS Maps SDK for JavaScript 5.2 adds Viewshed and Shadow Cast analysis to Gaussian Splat layers, with Esri noting that splat artifacts may show in results.

Michael Rubloff

Nov 11, 2026

Platforms

Esri Adds Viewshed and Shadow Cast Analysis to Splats

ArcGIS Maps SDK for JavaScript 5.2 adds Viewshed and Shadow Cast analysis to Gaussian Splat layers, with Esri noting that splat artifacts may show in results.

Michael Rubloff

Trending Articles
  1. TRENDING
    Loading...
  2. TRENDING
    Loading...
  3. TRENDING
    Loading...
Michael Rubloff

Written by Michael Rubloff

Michael is the Founder and Managing Editor of Radiancefields.com

More from Michael Rubloff

More from Michael Rubloff

Platforms

Unreal Engine 5.9 Preview Adds Experimental Gaussian Splats

Unreal Engine 5.9 MegaJam Preview lists experimental Gaussian splat import on its roadmap, bringing PLY and SPZ splats into the world with Niagara integration.

Michael Rubloff

Nov 11, 2026

Unreal Engine 5.9

Platforms

Unreal Engine 5.9 Preview Adds Experimental Gaussian Splats

Michael Rubloff

Nov 11, 2026

Unreal Engine 5.9

Platforms

Unreal Engine 5.9 Preview Adds Experimental Gaussian Splats

Unreal Engine 5.9 MegaJam Preview lists experimental Gaussian splat import on its roadmap, bringing PLY and SPZ splats into the world with Niagara integration.

Michael Rubloff

Nov 11, 2026

Unreal Engine 5.9

Platforms

SpAItial Opens Its Echo-3 API to Every Developer Account

SpAItial's Echo-3 API is now open to every developer account, turning a ZIP of phone frames into a metric-scale Gaussian splat for 900 credits plus 1 per frame.

Michael Rubloff

Nov 11, 2026

Echo-3

Platforms

SpAItial Opens Its Echo-3 API to Every Developer Account

Michael Rubloff

Nov 11, 2026

Echo-3

Platforms

SpAItial Opens Its Echo-3 API to Every Developer Account

SpAItial's Echo-3 API is now open to every developer account, turning a ZIP of phone frames into a metric-scale Gaussian splat for 900 credits plus 1 per frame.

Michael Rubloff

Nov 11, 2026

Echo-3

Platforms

Esri Adds Viewshed and Shadow Cast Analysis to Splats

ArcGIS Maps SDK for JavaScript 5.2 adds Viewshed and Shadow Cast analysis to Gaussian Splat layers, with Esri noting that splat artifacts may show in results.

Michael Rubloff

Nov 11, 2026

Esri

Platforms

Esri Adds Viewshed and Shadow Cast Analysis to Splats

Michael Rubloff

Nov 11, 2026

Esri

Platforms

Esri Adds Viewshed and Shadow Cast Analysis to Splats

ArcGIS Maps SDK for JavaScript 5.2 adds Viewshed and Shadow Cast analysis to Gaussian Splat layers, with Esri noting that splat artifacts may show in results.

Michael Rubloff

Nov 11, 2026

Esri

New to Gaussian Splatting? Start here

Radiance fields, explained from the ground up: what a Gaussian splat is, how to capture one, and which tools and gear to start with.

Newsletter

Keep up with the field.

New research, tools and captures from the Radiance Fields newsroom, in your inbox. Free, no spam.

Gaussian Splatting News on YouTube

The week in radiance fields, every Monday.

Gaussian Splatting News on YouTube

The week in radiance fields, every Monday.

Gaussian Splatting News on YouTube

The week in radiance fields, every Monday.

Gaussian Splatting News on YouTube

The week in radiance fields, every Monday.