GLB Texture Resizer – Batch Downscale Embedded Textures for Retro PSX & Game Optimization

GLB / GLTF Texture Resizer & Optimizer (Python Script)

This Python tool automatically extracts, rescales, and re-embeds textures inside GLB files, allowing you to quickly reduce texture resolution for:

• Better game performance

• Smaller file sizes

• Retro / PS1 / PSX / low-poly aesthetics

• Faster loading times

• Asset optimization for real-time engines

The script processes GLB / GLTF files, rescales all embedded textures to a target resolution, and exports optimized versions to a separate output directory — leaving your original files untouched. File names remain the same.

Perfect for indie game developers, 3D artists, VR/AR developers, and anyone looking to optimize or stylize 3D assets.

✅ Key Features

• Automatically rescale embedded textures in GLB files

• Batch processing support

• Preserve original files (exports to output folder)

• Keep original filenames

• Ideal for PSX / retro / low-res texture styles

• Reduce file size for better performance

• Simple Python script — easy to customize

• Works with embedded textures

• Great for Unity, Unreal, Godot, Blender pipelines

Use Cases

• Retro / PS1 / PSX-style games

• Low-poly & stylized projects

• Mobile game optimization

• WebGL & browser-based 3D

• Asset store cleanup

• Reducing texture memory usage

• Faster builds & loading times

📦 What’s Included

• 1 Python script file

• Ready to run & modify

• Lightweight and easy to integrate into your pipeline

⚙️ Requirements

• Python 3.x

• GLB files with embedded textures

💡 Why Use This Tool?

Manually resizing textures in dozens or hundreds of 3D files is slow and error-prone. This tool automates the entire process so you can:

• Save time

• Maintain consistent texture resolution

• Instantly achieve retro aesthetics

• Optimize assets for performance-critical projects