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From Blender to Three.js: The Complete Baking Guide (AO, PBR, High→Low Poly)

Overview

Last time we learned the basics of baking.

In this video, we’re going deeper: PBR baking, high-to-low poly workflows, and ambient occlusion.

These techniques are the difference between 3D models that just work and models that look stunning—all while staying fast and lightweight in the browser. By the end, you’ll know exactly what these terms mean and how to use them with Blender and Three.js.

Why this matters

When building 3D websites, you always face the same challenge:

• High-poly models look amazing but are too heavy for the browser.

• Lightweight models perform well but often look flat or unrealistic.

This tutorial shows you how to bridge that gap:

• PBR Baking → bring Blender materials into Three.js without losing detail.

• High → Low Poly → keep the look of a sculpt without killing performance.

• Ambient Occlusion → add natural depth and realism without heavy lighting.

These workflows are essential if you want to create games, product configurators, or 3D portfolios that run smoothly while still looking professional.

Resources/Tech Stack

• Three.js

• React Three Fiber

• SimpleBake

• Blenderkit

• Gltf Report

• PBR

Experience the project in action

• Demo

• Final Code

• Starter Code

#threejs #js #webgpu

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