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Add golden-hour veil driven by real sun altitude

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New #duskSky layer — purple high up through coral to deep orange at the
horizon — whose opacity is a smoothstepped triangle peaking at +1° sun
altitude and vanishing outside -6°..+8°. It rides above the day sky and
also glows over the stars right after sunset and before sunrise.
Hidden in balada/chuva.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015HtPHsTnDcLVSCiF5FGHZj
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vini 2026-07-19 22:02:37 -03:00
parent aa832727da
commit a181614e38
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@ -59,7 +59,7 @@ Pure HTML/CSS/JS, no external dependencies. All visuals are self-contained:
| Milky Way | Per-pixel sampling of `milkyway.jpg` (Gaia photo, full res): `buildMwGrid` caches viewport unit vectors + extinction/glare, `renderMilkyWay` applies only the sidereal rotation (camera azimuth folded into the equatorial→galactic matrix) and stylized "development" (deep blacks, saturation, cool shadows). Decoded texture stays resident (~75 MB) |
| Moon & planets | Astronomy Engine topocentric ephemerides: Moon with real phase texture + bright-limb angle, 7 planets with magnitude-scaled dots (labels only in constellation mode) |
| Zodiac constellations | Stellarium Modern lines (traces only, no artwork); toggled via `/tmp` file or `C` key |
| Day mode | Real sun altitude (Astronomy Engine, follows the timelapse clock) drives `--sun-bottom` (horizon → ~78% at culmination) and a `dia` body class: pink vaporwave `#daySky` with green grass below the horizon, drifting CSS clouds, bright sun disc, golden horizon, stars dimmed to ghosts (0.12), dancer replaced by a grounded gravestone (flattened-ellipse mound/shadow for perspective, no religious symbols). Balada/chuva override day visuals via `:not()` selectors |
| Day mode | Real sun altitude (Astronomy Engine, follows the timelapse clock) drives `--sun-bottom` (horizon → ~78% at culmination) and a `dia` body class: pink vaporwave `#daySky` with green grass below the horizon, drifting CSS clouds, bright sun disc, golden horizon, stars dimmed to ghosts (0.12), dancer replaced by a grounded gravestone (CC0 tileset PNG, flattened-ellipse mound/shadow for perspective, no religious symbols). A `#duskSky` golden-hour veil peaks at sun altitude +1° (zero outside −6°..+8°), JS-driven, on both dawn and dusk. Balada/chuva override day visuals via `:not()` selectors |
| Nebula blobs, grid floor, horizon | CSS animations |
| DANCEBOT-9000 robot | Pure CSS (divs + `@keyframes`) |
| Chest EQ bars & VU meter | JS-driven `requestAnimationFrame` |