Virtual Tours & Interactive 3D – Alec Schweiger

Interactive 3D Experiences

Virtual tours, browser-based 3D, digital twins, and game-ready assets

app downloads required: 0
on desktop and smartphone: Browser
the foundation for digital twins: 3D Scan
game-ready assets: LOD · PBR

Spaces you can explore yourself

I develop spatial 3D applications that let users control the camera and move through a building or site — smoothly, directly in the browser, on desktop and smartphone, with no app download.

For the Akademie Deutscher Genossenschaften, I created a virtual tour of Schloss Montabaur featuring 3D scans, narration, historical overlays, and a fully navigable Knights’ Hall.

Services

Virtual Tours
Explorable 3D environments for real estate, historic buildings, and exhibitions — including areas that are otherwise inaccessible.
Digital Twins
Detailed models of historic buildings for academies, foundations, and museums, based on 3D scans created with tools such as Polycam.
Browser-Based 3D
WebGL applications built with Spline that run without installation, and Unreal Engine with Blueprints for demanding real-time projects.
Game-Ready Assets
Optimized 3D models for games, VR/AR, and real-time configurators — with defined polygon budgets, clean LOD levels, two UV channels, and PBR textures from Substance 3D Painter.

Process

01Concept
023D Scanning & Modeling
03Interaction
04Desktop & Smartphone Testing
05Deployment on the Web, as an App, or On-Site

Software: Unreal Engine (Blueprints), Spline, Autodesk Maya, Substance 3D Painter, Polycam

Berlin and across Germany

I am a freelancer based in Berlin, working with companies, agencies, and institutions across Germany — from Berlin and Brandenburg to Rheinland-Pfalz, Baden-Württemberg, and Schleswig-Holstein.