Proof Engine Lab · live in your browser · free
Spin a sneaker. Make it yours.
Every pair in O'BLOCK is a 48 by 24 side drawing, built out into a voxel shell and lit as it turns. Pick any of the 176 models, choose a colourway or mix your own three colours, and save what you made.
Live engine loads in a moment (301 KB). This is a still from it.
Drag to turn · arrow keys work too · 0 resets
Your pair
Colourway Or mix your ownModel and colourway names are O'BLOCK's parody names, not real products.
How to use it: drag the shoe to turn it (pinch or the + button to zoom). Pick a model and a colourway on the right, or set the upper, panel and sole colours yourself. Download PNG saves exactly what you see; Copy link saves your design.
How it works
- It is the real engine. Proof Engine is the Rust renderer O'BLOCK ships with. For the web I compiled it to WebAssembly (301 KB gzipped) and swapped its desktop OpenGL window for a WebGL2 canvas. Same glyph-particle renderer, same HDR bloom and colour grade as the game.
- A shoe is a drawing first. Each model is a 48 x 24 pixel side view with its own collar, sole, toe box and mark. The engine extrudes it, narrow at the toe and widest at the ball of the foot, opens the collar, and keeps only the voxels with an open face.
- Lit per voxel, every frame. Each visible voxel is shaded by its normal against one key light, with a fill and a rim so even a black pair reads on black, then drawn as a chunky pixel through the bloom pass.
- 1,043 model and colourway pairs ship in the game's catalogue, and the three colour pickers make any other one you want.
- Nothing leaves your device. Everything is computed in your browser tab. No account, no upload, no tracking of what you make.
Where to next
More live demos
One-of-one painting
Type your name and get a painting nobody else gets. The same name always paints the same picture.
Money pile
Any amount in $100 bills at real scale, stacked beside a 1.8 m person.
One-off objects
A one-off car, watch, sculpture or piece of jewelry built voxel by voxel from a number, plus all 37 things the game sells.
Up next
Every engine demo on one pageProof Engine LabLive game-engine demos: spin sneakers, paint from your name, stack cash next to you.Read it next →