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Automatically calculate mass based on mesh volume and material density. Includes presets, voxel-based volume estimation, and a one-click workflow. Editor-only and lightweight.
Render pipeline compatibility
The Built-in Render Pipeline is Unity’s default render pipeline. It is a general-purpose render pipeline that has limited options for customization. The Universal Render Pipeline (URP) is a Scriptable Render Pipeline that is quick and easy to customize, and lets you create optimized graphics across a wide range of platforms. The High Definition Render Pipeline (HDRP) is a Scriptable Render Pipeline that lets you create cutting-edge, high-fidelity graphics on high-end platforms.
Unity VersionBuilt-inURPHDRP
6000.0.28f1
Compatible
Compatible
Compatible
Additional compatibility information

Demo scene is designed for URP/SRP.


To render the demo scene in Built-in or HDRP, please convert the materials to your target render pipeline

Description

AutoMass – Accurate Mass from Volume & Density


AutoMass is a lightweight Unity editor extension that automatically calculates Rigidbody mass based on your GameObject’s volume and material density. Perfect for physics-based games, simulations, or any project where realistic mass matters.


View Online Documentation


Features


• Volume-based mass calculation using voxel approximation


• Built-in density presets (wood, steel, gold, etc.) or custom values


• Right-click context menu: “Add AutoMass”


• One-click aggregation and mass assignment to Rigidbody


• Customizable voxel size and density list


• No runtime overhead – editor-only tool


• Extremely fast, hardware-accelerated algorithm


• Full C# source code included


Use Cases


• Physics-based gameplay and puzzles


• Accurate Rigidbody setups in engineering or training simulations


• Educational projects or procedural level design


• Quick prototyping with physically meaningful mass


What’s Included


• Editor tools and inspectors


• AutoMass MonoBehaviour and context menu integration


• Settings window for voxel and density presets


• Lightweight, dependency-free codebase


Technical details

• Volume-based mass calculation using voxel approximation

• hardware accelerated

• leveraging the power of compute shaders

• fully customizable

• only works with meshes without holes

Created with AI

AI was used as scripting help and for image generation

AutoMass

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License type
File size
7.5 MB
Latest version
1.0
Latest release date
Apr 2, 2025
Original Unity version
6000.0.28
Quality assets
Over 11,000 five-star assets
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Rated by 85,000+ customers
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