--- title: Building an Endless Interactive Glass Xylophone with... description: A deep technical walkthrough of building an interactive glass xylophone in Three.js where cursor sweeps trigger notes, swing animations, and colour reveals.... canonical: https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building an Endless Interactive Glass Xylophone with Three.js | daily.dev og:description: A deep technical walkthrough of building an interactive glass xylophone in Three.js where cursor sweeps trigger notes, swing animations, and colour reveals.... og:url: https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep og:image: https://api.daily.dev/og/posts/tv6of1Cep.png og:image:alt: Building an Endless Interactive Glass Xylophone with Three.js og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building an Endless Interactive Glass Xylophone with Three.js **[Codrops](https://daily.dev/sources/codrops)** · 15 min read · 1 upvotes · 0 comments ## Summary A deep technical walkthrough of building an interactive glass xylophone in Three.js where cursor sweeps trigger notes, swing animations, and colour reveals. Covers: endless scroll via a single phase value recycling 64 instanced bars up a helix; a fluid simulation used as a reveal mask over a per-bar gradient; frosted glass faked entirely in shaders (blurred backdrop, screen-space refraction, Fresnel, iridescence, SSAO contact shadows) because MeshPhysicalMaterial can't depth-sort instances; GPU-side damped pendulum swing animation driven by a single strike timestamp per bar; pitch-shifted audio across a pentatonic scale; and performance tiers for mobile including idle-gating the fluid solver and halving resolution buffers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Volatile Nexus: Tinkering with Glass, Caustics, Cubes and Sound in Three.js](https://daily.dev/posts/volatile-nexus-tinkering-with-glass-caustics-cubes-and-sound-in-three-js-14fgkjvp6) · Codrops · 0 upvotes · 0 comments - [Building an Endless Procedural Snake with Three.js and WebGL](https://daily.dev/posts/building-an-endless-procedural-snake-with-three-js-and-webgl-1l0q79k9x) · Codrops · 2 upvotes · 0 comments - [The Mechanics Behind a Scroll-Driven Circular 3D Carousel with Three.js and Post-Processing](https://daily.dev/posts/the-mechanics-behind-a-scroll-driven-circular-3d-carousel-with-three-js-and-post-processing-swyrrjrsw) · Codrops · 7 upvotes · 1 comments --- Tags: [#threejs](https://daily.dev/tags/threejs), [#creative-coding](https://daily.dev/tags/creative-coding) [View this post on daily.dev](https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building an Endless Interactive Glass Xylophone with Three.js","url":"https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep"},"datePublished":"2026-08-04T11:03:07.326Z","dateModified":"2026-08-04T11:03:33.618Z","description":"A deep technical walkthrough of building an interactive glass xylophone in Three.js where cursor sweeps trigger notes, swing animations, and colour reveals....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f4023d7b74795f754dc4ffeba4bcf73e?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f4023d7b74795f754dc4ffeba4bcf73e?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Codrops","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Codrops","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/codrops","url":"https://daily.dev/sources/codrops"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/building-an-endless-interactive-glass-xylophone-with-three-js-tv6of1cep","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"threejs,creative-coding","timeRequired":"PT15M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Codrops","item":"https://daily.dev/sources/codrops"},{"@type":"ListItem","position":3,"name":"Building an Endless Interactive Glass Xylophone with Three.js"}]} ```