Four interactive tools

3D Studio

Four simulations of the parts of the process that are hardest to learn from text: loading film in the dark, running a tank through the chemistry, focusing and exposing an enlarger, and placing tones on the zone scale.

These are teaching simulationsEverything in the 3D Studio is an educational model. It is designed to show the sequence, the relationships between variables and the mistakes people make. It is not a substitute for the data sheet supplied with your film, developer, paper and equipment, and it is not a prediction of any particular result. Always follow the manufacturer's safety instructions, wear nitrile gloves and eye protection, and ventilate your workspace.

Interactive 5–8 min

Film Loading Simulator

Load film onto a reel inside a changing bag, step by step, in 3D.

3D / interactive

Interactive 10–20 min

Developing Tank Simulator

Pour, agitate, drain and fix — with real chemistry colours and timings.

3D / interactive

Interactive 8–15 min

Enlarger Simulator

Focus, stop down, filter for contrast and expose — see the print appear.

3D / interactive

Interactive 6–12 min

Zone System Visualizer

Analyse a photograph, place it on eleven zones, and get a suggested EI.

3D / interactive

How it is built

Loaded only when you need it

The 3D Studio uses Three.js for rendering and GSAP for timing, both served as local static files — no CDN, no third-party requests, no tracking. Neither library is loaded on the home page or in the reference sections; they are imported on demand when you open one of these four pages.

Fallbacks

Every tool detects WebGL and Canvas support. If either is unavailable, the tool falls back to a written procedure or a static illustration and the interactive controls continue to work where they can.

Reduced motion

All idle animation — rotation, liquid flow, floating droplets — is disabled when your operating system reports a reduced-motion preference. The tools remain fully usable.

Mobile behaviour

The home page 3D preview is replaced with a static illustration below 640 px, and the studio pages detect small screens and reduce render resolution rather than dropping frames.

Privacy

The Zone System Visualizer reads a photograph you choose entirely in your browser's memory. Nothing is uploaded, nothing is stored, and the file disappears when you close the page.