Any3DAny3D
6 articles

3D Model Compression & Optimization

From VRAM bottlenecks and vertex quantization to KTX2 textures and automated pipelines, master 3D model lightweighting.

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Why Are 3D Models So Big?
#01·3D Compression

Why Are 3D Models So Big?

Your GLB file is only 10MB, but on your phone it eats 200MB of VRAM and crashes. Let's take a closer look at what's really going on.

First Lesson in Model Slimming: Vertex Compression's Three Techniques
#02·3D Compression

First Lesson in Model Slimming: Vertex Compression's Three Techniques

How many bytes does vertex data actually take? Quantization, MeshOpt, and Draco - which tool fits which scenario? It's not about 'Draco is best,' but 'the right tool for the right job.'

Textures: The VRAM-Hungry Gluttons You Never Saw Coming
#03·3D Compression

Textures: The VRAM-Hungry Gluttons You Never Saw Coming

Why does a 1.5MB JPG balloon to 87MB in VRAM? What's so wrong with PNG/JPG from a GPU's perspective? And how do GPU-native texture formats, Basis Universal, and KTX2 all fit together?

KTX2 in Practice: The Right Way to Use Texture Compression
#04·3D Compression

KTX2 in Practice: The Right Way to Use Texture Compression

ETC1S or UASTC? How to use toktx and gltf-transform? How to load KTX2 in Three.js / Babylon.js? This article is full of copy-paste-ready commands and code.

Different Platforms, Different Fates: A Guide to Choosing Compression Schemes
#05·3D Compression

Different Platforms, Different Fates: A Guide to Choosing Compression Schemes

Desktop, mobile, VR, mini-programs—which compression combination should you use? This article consolidates the knowledge from the previous four articles into a decision matrix and an automation script—just follow it.

From Blender to Launch: An End-to-End Compression Pipeline
#06·3D Compression

From Blender to Launch: An End-to-End Compression Pipeline

Take a 50MB PBR model through the full pipeline—Blender export, vertex compression, KTX2 texture conversion, engine loading—and get it under 5MB. Includes a complete automation script and a series cheat sheet.

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