---
title: Occlusion with Spline
description: Technical article and creative exploration from Kffein's research and development lab.
url: "https://kffein.com/en/lab/occlusion-avec-spline"
date_modified: "2026-11-09T10:38:44-05:00"
---

 *Version française : [Occlusion avec Spline](https://kffein.com/fr/lab/occlusion-avec-spline)*

# Occlusion with Spline

**Author:** 3D

**Role:** 2023

[Spline](https://spline.design/) lets you build 3D scenes for the web from a simple online editor. Our test: simulating an occlusion effect between a sphere and a 3D model.

Spline is a no-code, online 3D tool built on the same WebGL libraries we use. You control the camera, materials and the entire scene right in the browser. We had looked at it in the very early days of the Claude prototype, thinking it could make our lives easier on more complex 3D projects.

During our R&D sessions, Gab drew on an occlusion example: an invisible sphere you move over a filmed statue, which seems to carve into it in real time. Coding an effect like that from scratch in WebGL would take ages. With Spline, the community and ready-to-use examples do a good part of the work.

We concluded that, since Spline is a paid tool, its exports use a proprietary format that has to be imported with their own library. Gab found a way around that, but you lose the materials and textures, which then have to be redone by hand.