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feat: give the boards a horizon, a sea that reflects, and a state worth flying over

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The wide shot, which is what an anonymous visitor actually lands on.

**The sea was `MeshLambertMaterial`** — a material with no specular term at all,
by construction — on a board where water is half the frame. It is now a
low-roughness dielectric that reads `scene.environment`, with a runtime-generated
tiling swell normal map sampled twice per fragment at two scales and two
headings, so the sun breaks into a moving glitter path instead of a mirror point.
An `onBeforeCompile` patch takes the body colour toward the deep value looking
straight down and leaves it to the reflection at grazing, and walks roughness up
past 1.6 board spans so the far water cannot shimmer.

The swell spectrum is 1/k^2 and not 1/k because the first attempt was
photographed: at 1/k every component carries the same slope, the shortest wave
wins, and the sea renders as hard diagonal corduroy. A test holds it now.

**The board no longer ends in a diamond.** The sea plane went from 1.8 board
spans to 18, past the fog's far plane from anywhere the orbit reaches, and the
sky is a world-space dome rather than a screen-space gradient. That gradient was
wrong in a way dusk made obvious: the sunset band was painted along the *bottom*
of the picture, under the board, while the true horizon at the top of frame stayed
zenith blue. `daylight.ts` pinning the horizon stop to the fog colour to hide the
seam was a symptom of it.

**Terrain casts shadows.** Left off before because double-sided terrain against a
~16 m-per-texel shadow map gives acne; `shadowSide = BackSide` is the cure, shot
at four sun elevations down to +0.0 degrees to confirm no stippling. The caster is
a stride-2 decimation appended to the same index buffer and swapped in by
`onBeforeShadow`/`onAfterShadow` via `drawRange`: no extra draw call, a quarter of
the depth cost, and indistinguishable from the full-resolution caster in a
side-by-side crop. Stride 1 was measured at +65,566 triangles and would have
missed the budget by ~47,000, so it was not shipped.

**California reads as California.** It was a beige kite: the eastern edge one
ruled line for five degrees of latitude, the south closing in a diagonal V, the
whole south-east a featureless tan wedge. Now the coast runs to the Mexican
border with San Diego on it, the eastern edge follows the Colorado and the Nevada
diagonal, and the south-east is the Basin and Range — forty parallel desert ridges
throwing shadows east, Death Valley as a white pan between the Panamints and the
Black Mountains, the Salton Sea the one cool value for two hundred kilometres.
The opening pose is retuned to the bigger board; the old 452/392 stand-off left a
slab of empty ocean where the state should be.

**The aircraft were six pixels.** Measured, by enlarging a screenshot 200% to
find one at all — indistinguishable from a dead pixel, on a board whose entire
claim is that the sky is live. They are airliners now, with planform and trail,
and clicking one raises its card for a signed-out visitor.

**The Model X is off the wall.** It stood at floor level outside a studio 188 m up
a Transbay tower, reading as a car balanced on a parapet. The apron is now chosen
from `site.elevation`, which the pack already carries — not from an office id,
which is the bug class this repo already hit once when a door marker gated on
`id === "sf"` and would have pinned the Los Angeles building to San Francisco.

Also fixed, and nearly shipped: sea z-fighting dithered every flat piece of ground
on the Bay Area and SoCal boards. And one test asserted an exact source line for
the water material, so the better multi-line implementation failed it — it now
asserts the property (dielectric, metalness 0, low roughness) rather than the
author's first guess at formatting.

Tests 964 -> 1015. California desktop 562/650 draw calls and 728,744/750,000
triangles — 2.8% of triangle headroom left, which is the number the next person
should check first. No budget was raised.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Kartios
2026-08-21 23:43:14 -07:00
parent 655848746d
commit 8fb85cd2e5
30 changed files with 4781 additions and 257 deletions
Download Patch File Download Diff File Expand all files Collapse all files
index.html
+38 -9
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@@ -686,9 +686,22 @@
four fifths of which was irrelevant to whatever you were doing.
It is at most two chips now, chosen for the mode you are actually in by
`railHints()` in `src/ui/shortcuts.ts`, with no card around them: keycaps
over the scene, a text shadow instead of a fill, and the full reference
one press of `?` away. */
`railHints()` in `src/ui/shortcuts.ts`, and the full reference is one
press of `?` away.
**The fill came back, and the text shadow went.** The card was dropped
for a text shadow over the bare scene, which was measured against the
wrong background: on the deployed build the rail sits in the corner of a
sky, and the sky at its brightest is `skyHorizon` — 0xe9d8bb on the
California board, a pale cream. Fifty-six per cent white on that is
about 1.3:1 and a shadow does not save it; what you saw was grey text
you had to hunt for. This is now the same glass, hairline and shadow the
honesty line in the opposite corner has always carried, which is the
part of the original argument that was right — the rail is a corner
caption and it should look like the other one — and the ink is at full
strength, which puts it past 4.5:1 against the whitest sky the
atmosphere can render. It is still two chips and it is still not a
paragraph. */
.hint {
display: flex;
flex-wrap: wrap;
@@ -704,8 +717,14 @@
/* The rail is a corner, not a column. Without a ceiling it grew to meet
the mode pill in the middle of the screen. */
max-width: min(30rem, 42vw);
color: var(--ink-2);
text-shadow: 0 1px 3px rgba(3, 6, 10, 0.8);
color: var(--ink);
padding: var(--s1) var(--s2);
border: 1px solid var(--hairline);
border-radius: var(--r-sm);
background: var(--glass);
backdrop-filter: var(--blur);
-webkit-backdrop-filter: var(--blur);
box-shadow: var(--shadow);
}
/* One chip is one line. Wrapping happens *between* chips, which the flex
container already does; a chip that wraps inside itself is the thing
@@ -716,15 +735,22 @@
gap: 5px;
white-space: nowrap;
}
.hint__label { color: var(--ink-3); }
/* One step down from the keycap it labels, not three. `--ink-3` is 40%
white, which is a quiet grey on a panel and invisible in a corner of
sky; on the fill above, `--ink-2` is still clearly the subordinate half
of the chip and still legible on its own. */
.hint__label { color: var(--ink-2); }
kbd {
font: inherit;
font-size: 9px;
padding: 1px 4px;
border: 1px solid var(--hairline);
border-radius: 3px;
background: rgba(8, 12, 17, 0.7);
color: var(--ink-2);
/* Opaque, because a keycap on the rail is now a dark chip on a dark
chip: at 0.7 the glass behind it showed through and the two washed
into one another over a bright sky. */
background: rgb(8, 12, 17);
color: var(--ink);
}
.rail-buttons { display: flex; align-items: center; gap: var(--s1); }
@@ -740,7 +766,10 @@
background: var(--glass);
backdrop-filter: var(--blur);
-webkit-backdrop-filter: var(--blur);
color: var(--ink-2);
/* Full ink. This is the one control on the screen that has to be found
by somebody who does not yet know what any of this is, and it spends
most of its life over sky. */
color: var(--ink);
transition: background var(--t), color var(--t);
}
@media (hover: hover) {