v2.2.0 — 行星大气真实化：火星蓝色日落 · 金星橙色天空

🌌 Solar Wanderer v2.2.0

核心更新：行星大气物理真实化

🔴 火星 Mars

• 蓝色日落：实现分光 Henyey-Greenstein 相位函数（mieG 分光 vec3），Fe₂O₃ 尘埃蓝光前向散射系数约为红光 1.8 倍，太阳接近地平线时形成标志性蓝色/青色光晕（Curiosity Sol-956、Perseverance Sol-257 实拍印证）
• 白昼天空：引入分离式 interiorBoost 机制，Rayleigh boost=8 使地表呈现正确的琥珀/黄褐色天空（独立于 Mie，不影响太空视角）
• 太阳可见性：mieG[2] 从 0.88 降至 0.72（物理实测 Fe₂O₃ 范围），消除前向散射过曝；太阳盘面现在清晰可见
• 太空大气光晕：Rayleigh 系数恢复物理量级，太空看火星呈现真实的极薄气雾（非厚重白色球壳）
• 正午无星：skyFade 系数调至 1.0，正午地表星星完全消失（物理正确）
• 大气纵深：fog density 与 haze 系数联动，地表 20~50km 尘霾可见度

🟡 金星 Venus

• 太空云层纹理：multiplier 从 6 降至 1.5，云层贴图（venus_atmosphere.jpg）现在清晰可见，日夜终结线明显
• 地表橙色天空：Rayleigh 重新标定为橙色偏向 [8e-6, 4.5e-6, 1.0e-6]（CO₂+H₂SO₄ 吸收蓝光），interiorBoost=5 精确控制 ACES 不过曝，地表天空呈琥珀/橙色（与 Venera 着陆器实拍一致）
• 太阳不可见：mieG=0.65 降低前向散射，地表看不到太阳盘面（正确，厚云层完全遮挡）
• 地表能见度：fogDensityMult=5，地表水平能见度约 5~20km（Venera 实测数据）

🛠️ 大气着色器基础架构

• uBetaM 从 float 升级为 vec3（分光 Mie，支持波长相关散射）
• uG 从 float 升级为 vec3（分光 Henyey-Greenstein，蓝光前向峰更尖）
• inscM 从 float 升级为 vec3（保留各波段透射率差异）
• 新增 uBoostM uniform（独立 Mie 增幅，与 Rayleigh boost 分离）
• 新增 fogDensityMult 参数（极厚大气行星专用）

质量保证

• 35/35 单元测试通过（星历精度 ≤ 0.074°）
• 所有改动通过 inAtmo 条件门控，探索模式太空视角零影响
• headless Puppeteer 截图回归验证

Solar Wanderer v2.1.0

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v2.0.0 - Full Mobile Support

Solar Wanderer v2.0.0 - Full Mobile Support

Explore the real-time positions of every planet, moon, and thousands of small bodies at true 1:1 scale, powered by NASA JPL ephemeris. No install. Opens in any modern browser.

What's New in v2.0.0

Complete Mobile Experience:

• Touch controls: pinch-to-zoom, single-finger orbit, two-finger pan
• Persistent time widget at top-right (always visible, tap to expand time/display controls)
• Bottom action drawer with contextual buttons (Land, Fly, Jump, Run, Takeoff)
• Directory bottom sheet with full celestial body catalog via menu button
• Target info panel: tap any label for distance, gravity, orbital period, educational facts
• Smart layout: UI elements avoid overlap on all screen sizes

UI Polish:

• Desktop directory repositioned below time panel to prevent overlap
• Collapsible panels now reliably hide/show
• Action buttons correctly hidden when switching between orbit, walk, and fly modes

Features

• Scale: True 1:1 km, 0.5 m surface to 100,000 AU Oort Cloud
• Ephemeris: NASA JPL - planets under 0.074 degrees, Moon about 0.12 degrees, moons under 0.22 degrees
• Bodies: 8 planets, Moon, 100+ moons, asteroid belt, comets, TNOs, 21 real stars with 3D parallax
• Terrain: Multi-scale procedural with real albedo fusion
• Atmosphere: Raymarched scattering, gas giant immersive entry
• Modes: Orbit (Google Earth-style), Free Flight (6DOF), Surface Walk, Underwater
• Time control: Adjustable warp 1s to 10yr/s reversible, pause, jump to now
• Mobile: Full touch support
• i18n: Chinese/English UI with browser language auto-detect

Try It

https://sw.icodestar.net - no install required

Tech Stack

Three.js 0.165, Vite 5, WebGL2, Logarithmic depth buffer, Native ESM

Data Credits

Ephemeris: NASA JPL (Standish planetary elements + Horizons-fitted moon orbits)
Textures: NASA/USGS, Solar System Scope CC-BY-4.0, Steve Albers SOS, JPL Photojournal

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If you find Solar Wanderer beautiful or useful, starring the repo takes 2 seconds and helps others discover it!

Solar Wanderer v1.2.0

What's New

• 启动页整体重设计：星际之门风格玻璃态首页，星云/粒子背景、中文标题青色辉光、进度条融入进入按钮
• 加载中/完成态 UI 视觉统一：按钮位置、亮度、边框、发光始终一致，仅文字与底部进度填充变化
• 修复大气层遮挡 bug：卫星/天体现在正确遮挡行星大气（土卫一遮挡土星等）
• 完整保留中英文 i18n，中文游戏名始终固定显示在上方

Links

• Live: https://sw.icodestar.net
• Full changelog: v1.1.0...v1.2.0

v1.1.0 — Now the entire solar system, in a browser tab

🚀 Solar Wanderer v1.1.0 — Now the entire solar system, in a browser tab

What's new in v1.1.0: the simulation now spans the whole solar system out to ~2 light-years — 28 real trans-Neptunian objects (Eris, Sedna, Makemake, Haumea, Quaoar…) on true JPL orbits, the Oort Cloud as a statistical particle shell, real 3D stellar parallax for 21 bright stars, and light-year distance units.

A 1:1 real-time solar system explorer that runs entirely in your browser. The planets are computed from NASA JPL ephemerides against your system clock — so when you open it, everything is where it actually is right now.

▶ Try it instantly: https://sw.icodestar.net — zero install, zero account, ~180 kB gzipped.

What you can do

• 🌍 Scroll from Earth orbit down to walking on the Moon — no loading screen, no cut. Look up: Earth hangs full and blue in the black lunar sky.
• 🚶 Land and walk on 19 solid worlds with real surface gravity. Jump 6× higher on the Moon. Dive underwater on Earth.
• 🌅 Ray-marched atmospheres — blue limb from space, red sunsets, butterscotch Martian sky. Fly into Jupiter's cloud deck.
• 🪐 Saturn's rings with ice-particle scatter and a shadow cast onto the planet body.
• ☄️ The full solar system — asteroid belt, Kuiper belt, 28 real trans-Neptunian objects (Eris, Sedna, Makemake…), the Oort Cloud, out to ~2 light-years.
• 🚀 6DOF free flight 1 m/s → 2 AU/s, time-warp ×10 years/s, freeze anywhere.
• 🔭 21 real bright stars at true 3D positions — you see real parallax as you move through the solar system.

Why it's different

Scale	True 1:1 km — floating-origin + log depth renders 0.5 m to 100,000 AU seamlessly
Accuracy	JPL Horizons verified — ≤0.074° for planets, 21 moons fitted from state vectors. Run npm run verify yourself.
Immersion	Continuous orbit → atmosphere → surface → walking → underwater, no cuts
Footprint	Pure Three.js + Vite, no backend, no account, MIT

Under the hood

Floating-origin scene graph (Float64 positions, downcast to Float32 only after camera subtraction), logarithmic depth buffer, ray-marched Rayleigh+Mie atmospheres, GPU auto-tiering. All ephemeris code is pure functions, Node-testable, cross-checked against the live NASA JPL Horizons API.

Get started

git clone https://github.com/hyqzz/Solar-Wanderer.git
cd Solar-Wanderer && npm install && npm run dev

Or just open https://sw.icodestar.net.

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Contributions welcome — translations, real DEM terrain, eclipse shadows, sound, mobile touch. See CONTRIBUTING.md and the good first issue label.

⭐ Star it if it made you feel small in a good way.

v1.0.0 — Full Heliosphere Release

Solar Wanderer v1.0.0

▶ Live Demo — open in any modern browser, zero install.

What is this?

A 1:1 real-time solar system explorer running entirely in your browser. Planet positions are computed from NASA JPL ephemerides against your system clock — the solar system you see is the solar system as it is right now.

Highlights

• 🌍 Seamless landing — scroll from Earth orbit continuously down to walking on the Moon surface. No cuts, no loading screens.
• 📏 True 1:1 scale — floating-origin + logarithmic depth renders 0.5 m to 120 AU without z-fighting
• 🌅 Ray-marched atmospheres — Rayleigh+Mie scattering per planet; dive into Jupiter's cloud deck
• 🚶 Land and walk on 19 solid worlds with real surface gravity; dive underwater on Earth
• 🪐 Saturn's rings — NASA gold-brown tint, ice-particle scatter, shadow cast on planet body
• ☄️ Full heliosphere — asteroid belt, Kuiper belt, zodiacal light, termination shock, heliopause, Voyager 1 & 2
• 🔭 21 real bright stars (Hipparcos catalog)
• ⏱ Time machine — pause, rewind, 10 years/second, one key back to now
• 🔬 Verifiable — npm run verify cross-checks live against NASA JPL Horizons API

Accuracy (vs NASA JPL Horizons)

Body	Error
Planets (9)	0.0007° – 0.074°
Moon	0.12°
Moons (21)	0° at epoch · ≤0.22° after 10 days

Quick Start

git clone https://github.com/hyqzz/Solar-Wanderer.git
cd Solar-Wanderer
npm install
npm run dev

Or just open https://sw.icodestar.net — nothing to install.

Tech

Three.js 0.165 · Vite 5 · native ESM · WebGL2 · ~170 kB gzipped · no backend · MIT license