Requirements & running

Just open it

Proto Previewer is live at inspect.drivestate.gg. No install, no account, no download — it loads a preset car and you can start dropping files on it straight away.

The rest of this page is for the requirements, and for running your own copy.

Requirements

• A modern browser with WebGL2 — Chrome, Edge, Firefox, or Safari, all current versions.
• A discrete GPU helps with the post-processing stack but isn't required; the heavy passes turn themselves off on mobile.
• No account, no plugin, no install.

Phones and tablets work. The interface restacks for a narrow screen, and the two most expensive effects start off — see mobile defaults.

Running it locally

Proto Previewer is a static site built with Vite, so it runs from any web server — or straight from your machine.

npm install
npm run dev       # dev server with hot reload
npm run build     # production build into dist/
npm run preview   # serve the built site

Three batch files wrap the same commands for double-clicking: run-dev.bat, build.bat, and run-preview.bat.

The production build is a plain folder of static files. Drop dist/ on any host — no server-side anything.

Your data

Everything lives in your browser's local database:

Stored	What
Settings and metadata	Viewport settings, camera presets, which model is active
Assets	The mesh, background image, and every channel texture you loaded

Two consequences worth knowing. Your work survives a reload and a restart, so you can come back to exactly what you were looking at. And clearing site data — or opening it in a private window — starts you fresh, since there is no account and nothing on a server.

Nothing is uploaded

Files never leave your machine. Conversion, texture loading, and rendering all run client-side. That's worth knowing when the model is under NDA.

Next: getting started.