--- title: How Grabbit 2 Simulates Physics Inside the Unity Editor description: Grabbit 2 is a Unity Editor plugin that enables physics-based level design and set dressing without requiring runtime Rigidbodies or colliders. The developer... canonical: https://daily.dev/posts/how-grabbit-2-simulates-physics-inside-the-unity-editor-nfreesepy twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How Grabbit 2 Simulates Physics Inside the Unity Editor | daily.dev og:description: Grabbit 2 is a Unity Editor plugin that enables physics-based level design and set dressing without requiring runtime Rigidbodies or colliders. The developer... og:url: https://daily.dev/posts/how-grabbit-2-simulates-physics-inside-the-unity-editor-nfreesepy og:image: https://api.daily.dev/og/posts/NfREESepY.png og:image:alt: How Grabbit 2 Simulates Physics Inside the Unity Editor og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How Grabbit 2 Simulates Physics Inside the Unity Editor **[80 LEVEL](https://daily.dev/sources/80lv)** · 7 min read · 0 upvotes · 0 comments ## Summary Grabbit 2 is a Unity Editor plugin that enables physics-based level design and set dressing without requiring runtime Rigidbodies or colliders. The developer details how it runs an isolated physics simulation in edit mode using Unity's manual physics stepping, handles on-the-fly convex decomposition for arbitrary meshes (with three strategies: Balance, Precision, and Performance), and writes results back non-destructively. Key improvements over Grabbit 1 include spatial caching for large scenes, reliable Undo integration, persistent collider baking for runtime use, crash recovery for interrupted sessions, and a scene toolbar integration. The tool offers five interaction modes (Select, Create, Place, Arrange, Scatter) and an optional MCP hook for AI assistant integration. Requires Unity 6. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Unity Editor Tool For Physics-Assisted Prop Placement](https://daily.dev/posts/unity-editor-tool-for-physics-assisted-prop-placement-hzcebd6ah) · 80 LEVEL · 0 upvotes · 0 comments - [This Unity Tool Handles Projectile Simulation & Ballistics](https://daily.dev/posts/this-unity-tool-handles-projectile-simulation-ballistics-xh5zjhn9x) · 80 LEVEL · 0 upvotes · 0 comments - [A Physics Engine with Incremental Rollback • Easel](https://daily.dev/posts/a-physics-engine-with-incremental-rollback-easel-smqrkuh1s) · Hacker News · 1 upvotes · 0 comments --- Tags: [#game-development](https://daily.dev/tags/game-development), [#game-design](https://daily.dev/tags/game-design), [#unity](https://daily.dev/tags/unity), [#physics](https://daily.dev/tags/physics) [View this post on daily.dev](https://daily.dev/posts/how-grabbit-2-simulates-physics-inside-the-unity-editor-nfreesepy) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How Grabbit 2 Simulates Physics Inside the Unity Editor","url":"https://daily.dev/posts/how-grabbit-2-simulates-physics-inside-the-unity-editor-nfreesepy","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-grabbit-2-simulates-physics-inside-the-unity-editor-nfreesepy"},"datePublished":"2026-08-03T18:03:07.230Z","dateModified":"2026-08-03T18:03:28.606Z","description":"Grabbit 2 is a Unity Editor plugin that enables physics-based level design and set dressing without requiring runtime Rigidbodies or colliders. 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