From bcb05f051ed68c39e2c42a147c2b8784684d3651 Mon Sep 17 00:00:00 2001 From: monsterrobotparty Date: Thu, 16 Jul 2026 13:24:38 +1000 Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=A8=20closer:=20colourise=20the=20gray?= =?UTF-8?q?scale=20moons=20=E2=80=94=20directorial=20hue=20tint=20(opus)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit USGS has no colour equirect for Europa/Callisto/Titan/Phobos/Charon, so those mosaics shipped grayscale. Multiply each by its characteristic hue at render (bodies.js `tint`; moons.js tint-preserving loader keeps the real surface detail, adds the iconic colour — Titan orange, Europa/Charon tan, Callisto/Phobos warm). Io/Ganymede/Triton stay true USGS colour (white multiplier). Flagged in CREDITS as a directorial (non-data) choice per Part ω.2. User-directed ("colourise the moons"). Co-Authored-By: Claude Opus 4.8 --- assets/textures/CREDITS.md | 7 +++++++ js/bodies.js | 10 +++++----- js/layers/moons.js | 12 +++++++++++- 3 files changed, 23 insertions(+), 6 deletions(-) diff --git a/assets/textures/CREDITS.md b/assets/textures/CREDITS.md index cdc2d30..72dcbc6 100644 --- a/assets/textures/CREDITS.md +++ b/assets/textures/CREDITS.md @@ -53,6 +53,13 @@ under budget). Downloaded 2026-07-16. Host base URL: `https://planetarymaps.usgs.gov/mosaic/` (served from the USGS `asc-pds-services` bucket). USGS terms: . +**Directorial colourisation (PERIHELION closer).** USGS has no colour equirect for +Europa, Callisto, Titan, Phobos and Charon, so those mosaics ship grayscale. The +app multiplies each by its characteristic hue at render (`bodies.js` `tint`: +Titan orange, Europa/Charon tan, Callisto/Phobos warm-brown) — the *real surface +detail is preserved*; only the colour is an explicit directorial choice, not data. +Io, Ganymede and Triton are USGS colour mosaics and render untinted. + **Truth boundary (brief §7b):** these are the *real data* textures — real worlds get real maps. The stylized grimoire portraits in `../art/grimoire/` are the *aesthetic* layer (generated art), kept visually and directorially separate. diff --git a/js/bodies.js b/js/bodies.js index 94593aa..3aed108 100644 --- a/js/bodies.js +++ b/js/bodies.js @@ -62,18 +62,18 @@ export const BODIES = { parent: 'earth', moonOrbit: { aKm: 384400, periodDays: 27.322 } }, phobos: { name: 'Phobos', type: 'moon', radiusKm: 11.27, color: '#8a7c6e', - texture: '1k_phobos.jpg', parent: 'mars', moonOrbit: { aKm: 9378, periodDays: 0.319 } }, + texture: '1k_phobos.jpg', tint: '#a08a76', parent: 'mars', moonOrbit: { aKm: 9378, periodDays: 0.319 } }, deimos: { name: 'Deimos', type: 'moon', radiusKm: 6.2, color: '#9a8c7a', texture: null, parent: 'mars', moonOrbit: { aKm: 23459, periodDays: 1.262 } }, io: { name: 'Io', type: 'moon', radiusKm: 1821.6, color: '#e8d24b', texture: '1k_io.jpg', parent: 'jupiter', moonOrbit: { aKm: 421700, periodDays: 1.769 } }, europa: { name: 'Europa', type: 'moon', radiusKm: 1560.8, color: '#c9b79c', - texture: '1k_europa.jpg', parent: 'jupiter', moonOrbit: { aKm: 671034, periodDays: 3.551 } }, + texture: '1k_europa.jpg', tint: '#e6dcc8', parent: 'jupiter', moonOrbit: { aKm: 671034, periodDays: 3.551 } }, ganymede: { name: 'Ganymede', type: 'moon', radiusKm: 2634.1, color: '#9b8e7e', texture: '1k_ganymede.jpg', parent: 'jupiter', moonOrbit: { aKm: 1070412, periodDays: 7.155 } }, callisto: { name: 'Callisto', type: 'moon', radiusKm: 2410.3, color: '#6b5f52', - texture: '1k_callisto.jpg', parent: 'jupiter', moonOrbit: { aKm: 1882709, periodDays: 16.689 } }, + texture: '1k_callisto.jpg', tint: '#9a8778', parent: 'jupiter', moonOrbit: { aKm: 1882709, periodDays: 16.689 } }, mimas: { name: 'Mimas', type: 'moon', radiusKm: 198.2, color: '#c8c8c8', texture: null, parent: 'saturn', moonOrbit: { aKm: 185539, periodDays: 0.942 } }, @@ -86,7 +86,7 @@ export const BODIES = { rhea: { name: 'Rhea', type: 'moon', radiusKm: 763.8, color: '#c4c4c4', texture: null, parent: 'saturn', moonOrbit: { aKm: 527068, periodDays: 4.518 } }, titan: { name: 'Titan', type: 'moon', radiusKm: 2574.7, color: '#d9a441', - texture: '1k_titan.jpg', parent: 'saturn', moonOrbit: { aKm: 1221870, periodDays: 15.945 } }, + texture: '1k_titan.jpg', tint: '#e0a63f', parent: 'saturn', moonOrbit: { aKm: 1221870, periodDays: 15.945 } }, iapetus: { name: 'Iapetus', type: 'moon', radiusKm: 734.5, color: '#8a7a5e', texture: null, parent: 'saturn', moonOrbit: { aKm: 3560851, periodDays: 79.33 } }, @@ -114,7 +114,7 @@ export const BODIES = { w: 113.76329, ma: 14.86012204, epoch: 2451545.0 }, }, charon: { name: 'Charon', type: 'moon', radiusKm: 606.0, color: '#b3a894', - texture: '1k_charon.jpg', parent: 'pluto', moonOrbit: { aKm: 19591, periodDays: 6.387 } }, + texture: '1k_charon.jpg', tint: '#c4b7a4', parent: 'pluto', moonOrbit: { aKm: 19591, periodDays: 6.387 } }, }; // Ordered planet ids (draw / menu order). diff --git a/js/layers/moons.js b/js/layers/moons.js index aab958b..55793e9 100644 --- a/js/layers/moons.js +++ b/js/layers/moons.js @@ -17,7 +17,17 @@ export default function create(ctx) { const mesh = new THREE.Mesh(new THREE.SphereGeometry(1, 24, 16), mat); mesh.visible = true; scene.add(mesh); - loadTextureInto(mat, b.texture); // NASA/USGS map when present; flat color otherwise (§7 fallback) + if (b.tint) { + // Directorial colourisation: the USGS mosaics for these moons are grayscale + // (no color equirect exists), so multiply the real surface by the moon's + // characteristic hue — keeps true detail, adds the iconic colour. On a load + // error the flat b.color already set on the material stands (§7 fallback). + new THREE.TextureLoader().load(CONFIG.textures.path + b.texture, (tex) => { + tex.colorSpace = THREE.SRGBColorSpace; mat.map = tex; mat.color.set(b.tint); mat.needsUpdate = true; + }); + } else { + loadTextureInto(mat, b.texture); // NASA/USGS map when present; flat color otherwise (§7 fallback) + } registerPick(mesh, id); const lbl = makeLabel(mesh, b.name, 'body-label moon'); lbl.obj.visible = false; // CSS2DRenderer honors obj.visible (not div.style.display)