Collision Forge
Engine-ready collision shapes with Unreal-style naming baked in.
Boxes, spheres, capsules, convex hulls and mesh collisions — plus V-HACD multi-hull decomposition on every platform.
Instant download · free updates forever · 30-day refund policy
What it does
Boxes, spheres, capsules, convex hulls and mesh collisions — plus V-HACD multi-hull decomposition on every platform.
Every shape you need
Box, sphere, capsule, convex hull and mesh collisions, generated straight from your selection.
UBX_ / USP_ / UCP_ / UCX_
Unreal-style prefixes applied automatically — import into UE and collisions just work.
Multi-hull V-HACD
Convex decomposition for concave shapes, with bundled V-HACD binaries for Windows, macOS and Linux.
Re-tune live
Adjust sliders after generating and watch the collision update — no delete-and-redo loop.
Scene-wide management
Select, show/hide or delete every collision object in the scene from one panel.
No dependencies
Everything ships inside the add-on — nothing else to install.
How it works
Select
Pick a mesh — simple or concave.
Generate
Choose the shape; V-HACD handles the hard ones.
Export
Engine-ready names, engine-ready physics.
Part of the Game Asset Pipeline Toolkit
Six add-ons that share one set of conventions — from mirroring to export QA, each tool picks up where the last one left off.
Get all six — Pro Bundle
The four paid tools cost $70 solo. The bundle is $59 (save $11) and every future update is free.
Questions, answered
Which Blender versions?
Blender 4.2 and newer (this one needs 4.2+; the rest of the toolkit runs on 4.0+).
Does multi-hull work on Mac/Linux?
Yes — V-HACD binaries for Windows, macOS and Linux are bundled and used automatically.
Only for Unreal?
The UBX_/UCX_ convention is Unreal's, but the shapes are plain meshes — Unity and Godot workflows use them too.
What if it's not for me?
30-day refund policy — email us and you get your money back.
Stop paying the prep tax
$20 one-time · free updates · 30-day refund policy.