// Tech

DRACOLoader in Three.js — Compressed glTF Meshes

DRACOLoader unpacks Draco-compressed glTF meshes 50-80% smaller than uncompressed — essential for production 3D web.

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DRACOLoader is a Three.js loader that decodes Draco-compressed mesh data inside glTF files. Draco is Google's open mesh compression library that achieves 50-80% size reduction on typical 3D models with minimal quality loss. Setup: import DRACOLoader, attach to your GLTFLoader instance, host the Draco decoder WASM (~150KB) on your CDN. The decoder runs once per page load, decoding subsequent meshes is fast. For a portfolio site with 5 glTF models totaling 8MB uncompressed, Draco brings the bundle down to 1.5-2MB. I run Draco on every production glTF, almost always — the decode cost is negligible compared to download time savings.

When this is overkill

If the goal is a simple e-commerce listing or content blog, a full dracoloader three js setup is overkill — a CSS-driven hero plus static images does the job with far less work. dracoloader three js earns its keep when the brand needs a memorable visual moment or when 3D actually clarifies the product (configurators, tours, demos).

// Need it on a live site? Three.js website development: 3D heroes, product viewers and scroll scenes from your models

What you get hands-off

After delivery: the complete source handed over, commented code, and the asset pipeline documented. Hosting, SSL, nightly backups and maintenance can be part of the written offer if you need them.

What this delivers

Concrete output: a working dracoloader three js integration on a real production site, not a demo. The integration includes device-tier detection so weak phones get a lighter version automatically. Source files are handed over in their original formats — Blender, GLSL, glTF — so any future developer can continue where I stopped.

How I work with it

On a typical project, dracoloader three js ships as a self-contained module: one entry-point JS file, one CSS file, asset bundle below 1.5MB total. I keep the integration sandboxed so the rest of the site stays SEO-friendly classical HTML. Frame budget targets 60 FPS on a mid-range Android, with a measurable fallback below.

Frequently asked questions

Why pick this technology over alternatives?
It has the largest production-quality ecosystem, the most documentation, and the largest pool of developers who know it. For a site you want to maintain for 3+ years, ecosystem maturity matters more than feature peak.
What if a newer tool comes out next year?
I track new tooling and migrate when it makes sense, but only after the new tool ships stable production releases for at least 6-9 months. I don't rebuild client sites on bleeding-edge tools — that's the path to broken sites.
How long does this take?
It depends on scope. A simple site usually takes 1–2 weeks, larger projects take longer, and the exact timeline is in the written offer.
What does it cost?
Every project is quoted per scope — scene count, asset complexity and interactivity drive the effort. Send a short brief and you get a written fixed quote, with source code included.
What if my visitors are on weak phones?
The site detects device tier before the first scene loads and serves a lighter version on weak hardware (fewer particles, simpler shaders). Devices without WebGL get a static fallback that preserves the visual language and conversion path.

Related services

// Tech Three.js GLTFLoader — Loading 3D Models Right

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Last updated: 2 November 2026.

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// Legal

Terms of Service

Last updated: 1 November 2026.

These terms describe how we work together. They're written in plain language — if anything is unclear, just ask.

Who provides the service

The service is provided by me, D. Svilenković, and I build the sites and apps myself. Contact: dimitrije@svilenkovic.com, +381 61 224 8989.

What I do

I build websites, web and desktop apps, online stores, Excel automation, appointment booking, system integrations, hosting and maintenance. I also make videos for social media, run Instagram, Facebook, TikTok and LinkedIn profiles, write posts and create AI images for them.

How we agree on work

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  3. When you confirm the quote, I start development.

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The price is fixed and agreed upfront. You get the payment terms and the timeline in the quote before work starts. If the scope changes significantly, we agree on the new price before continuing.

Timelines

I give a deadline in the quote and stick to it. If I need material from you (images, text, access), please send it on time, because the deadline depends on it.

Revisions

Small revisions are included and done at no charge. Larger changes that go beyond the original scope are agreed separately.

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Once paid, everything I built is yours. You can use it, change it or move it to another developer without involving me.

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I can host the site on my server and maintain it after it is built, and the quote states what that covers. You can move the site to another host at any time.

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I do my best to make everything work as it should, but bugs happen. As soon as you report one, I fix it as fast as possible. My liability is limited to the amount paid for the project.

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Changes to these terms

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