Experiment 02 A day, told in ink Local —

Hours, dissolving.

Now playing — your local clock

The paper, the ink and the light on this glass follow the hour where you are. Drag the meridian to borrow another one.

Click drop
Hold pour
Drag glass
Space burst

Field: —
Sun: —
Light from: —

Scroll — the day moves on

I.06:24 — DawnSun rising in the east

First light

Peach · rose · lilac

Before the city wakes, colour arrives as a rumour. Warm ink pools in the low places, and the glass catches its first highlight from the left — where the sun comes up.

Keyframe: 06:00
Mix: OKLab
Light: 090° · low

II.12:30 — NoonSun on the meridian

High noon

Cobalt · paper white

The sun stands on the meridian and every shadow shrinks to a full stop. Cobalt on paper — the most legible hour. Pour slowly; at noon nothing hides.

Keyframe: 12:00
Type: wght ↑ at noon
Light: 180° · overhead

III.19:12 — DuskSun just under the horizon

Going violet

Tangerine · violet

Light turns horizontal and every edge goes soft. Tangerine runs into violet, the ink starts to glow instead of stain, and the glass is lit from the right.

Keyframes: 17:00 → 19:12
Ink: edge glow on
Light: 270° · grazing

IV.23:12 — NightColophon

And then the ink dries.

Simulation

Stable fluids — Stam, 1999
GPU Gems, ch. 38
11 WGSL compute kernels
32 Jacobi iterations / frame

Fields

WebGPU storage buffers
velocity —
dye —
manual bilinear sampling

Glass

Liquid-glass refraction shader
rounded-rect SDF · bevel normals
chromatic rim · frost
specular follows the sun

Colour & type

Six keyframes in OKLab
driven by your local clock
Fraunces · Geist · Geist Mono