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prism dash

A free endless runner game — play it in your browser, no install. Neon synthwave endless runner for YouTube Playables — TypeScript, raw WebGL2 (instancing, HDR bloom, curved world) + Canvas 2D fallback

by @gujingchao · gujingchao/prism-dash on GitHubLANG TypeScriptHOSTED ON GUJINGCHAO.GITHUB.IOUPDATED 9 Oct 2026

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From the README

一款为 YouTube Playables 打造的霓虹合成波(Synthwave)风格 3D 无尽跑酷小游戏。 纯 TypeScript + 原生 WebGL2 + Canvas 2D 实现,零运行时依赖,gzip 后约 23 KB。

**▶ 在线试玩: (加 ?debug 显示性能面板,加 ?renderer=2d 强制使用 Canvas 2D 渲染器)

计分 = 距离分 + 宝石分(10 × 连击倍率,最高 ×10)+ 擦身而过奖励。

src/render/canvas2d/canvas-renderer.ts:和 WebGL 共用相机矩阵、弯曲公式和绘制列表,自己实现了 3D 投影、画家算法排序、屏幕空间背面剔除、平面光照、距离雾和 lighter 加法混合粒子。按 R 键可以在两套渲染器之间实时切换,对比效果。

DOM + CSS 负责菜单层(标题页、结算面板、暂停),Canvas 负责游戏内 HUD,各司其职。用到了 CSS 渐变文字 + 多层 drop-shadow 霓虹灯效、闪烁/脉冲关键帧动画、backdrop-filter 毛玻璃、env(safe-area-inset-*)、(pointer: coarse) 区分触屏和桌面的操作提示,以及 prefers-reduced-motion 无障碍适配。

Read the full README on GitHub →

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