Preflight Export - Blender → Unreal / Unity / Godot
Every broken asset you've ever sent to a game engine had a reason — you just found out too late. Unapplied scale, flipped normals, a stray n-gon, collision that didn't get recognised because the UCX_ name was one character off. Preflight Export catches all of it in Blender, fixes what's safe with one click, and won't let you export until the blocking problems are gone.ONE PANEL, THREE STEPS1. Validate — scan the selection (or whole scene) against 18 game-asset checks: transforms, normals, topology, collision, UVs, materials, naming, and more.2. Fix — one click applies every safe fix. Opinionated fixes stay opt-in.3. Export — batch export one engine-ready file per mesh, collision bundled in. Unreal & Unity (FBX) and Godot (glTF) presets. Disabled until the asset is actually clean.BUILT FOR THE PIPELINE• Generate collision, don't hand-build it — one click makes a convex UCX_ hull or a UBX_ box from your selection, correctly named, guaranteed convex.• Jump straight to the problem — click an issue and the viewport drops into edit mode with the exact bad faces selected.• It explains itself — every issue has a "why this breaks in-engine" note.• It won't corrupt your mesh — transform fixes safely skip shape-keyed, multi-user and linked data; mirrored (negative) scale gets its flipped normals fixed automatically.• Fix All + Export does the whole chain in one click.THE 18 CHECKSUnapplied scale · unapplied rotation · duplicate vertices · degenerate faces/edges · loose geometry · flipped normals · non-manifold edges · n-gons · engine-unsafe names · collision naming (UCX_Name_##) · orphan collision · non-convex UCX · missing UVs · no material · empty material slots · triangle budget · shape-key conflicts · multi-user data.REQUIREMENTSBlender 4.2 or newer. Windows, macOS, Linux.WHAT YOU GETThe addon (.zip), install via Preferences ▸ Get Extensions ▸ Install from Disk. Free updates. Ask me anything — I read every message.Note: like every Blender add-on that uses bpy, this is GPL-licensed.
Get it → feishudigi.gumroad.com