Decimatrix - High-quality mesh optimization tool for Unity
Product Description
Simplify your 3D models without losing what matters.
Decimatrix is a Unity tool that helps you reduce the complexity of 3D meshes in your scenes — making your projects run smoother and load faster, all without leaving the editor.
What it does
Decimatrix scans your scene, finds every 3D model, and lets you slim them down by removing unnecessary detail. A model with 50,000 triangles can become 25,000 — or whatever target you choose — while still looking great.
Key Features
- One-Click Scene Scan — Instantly finds every mesh in your scene and shows you exactly how many triangles and vertices each one has, sorted by heaviest first.
- Adjustable Quality — Use a simple percentage slider to control how much detail to keep, or fine-tune targets per mesh for full control.
- Built-In 3D Preview — See the before and after side by side, right inside Unity, so you can make sure everything still looks right before committing.
- Blend Shape Support — Facial expressions, morph targets, and other blend shapes are preserved during simplification — essential for characters and avatars.
- Works with Everything — Handles both static meshes and skinned meshes (animated characters, clothing, etc.).
- Apply & Revert — Try out your changes in the scene instantly. Don't like the result? Revert back to the original with one click.
- FBX Export — Export your optimized meshes as clean FBX files with all the original import settings carried over.
- Multi-Language — Available in English and French.
Who it's for
Anyone working in Unity who needs their scenes to perform better: game developers, VRChat world and avatar creators, XR developers, or anyone dealing with heavy 3D content that needs to run in real time.
How to use it
1. Open Tools > Decimatrix
2. Click Scan Scene
3. Select the meshes you want to optimize
4. Set your target reduction
5. Hit Decimate, preview the results, and apply
That's it. Lighter scenes, better performance, same look.