Unreal Engine 5 · Editor Plugin · Free

Mesh conditioning,
on every import.

Quadify Base for Unreal Engine 5 intercepts every static mesh you import and runs a 17-point QA report automatically — scoring, fixing, and flagging issues before the asset reaches your scene.

✓ Free on Fab — no purchase required. Full C++ source included.

Get free on Fab → See how it works

SM_VehicleDoor_01 · LOD0 ✓ Good

82 Good · 2 warnings

Naming conventionPass

ScalePass

NormalsPass

CollisionPass

Nanite readinessPass

Lightmap UVsWarn

LODsFail

Cull distanceWarn

How It Works

Import. Score. Ship.

No setup required. Quadify Base hooks into Unreal's import pipeline and runs automatically every time a static mesh lands in your project.

Import your FBX or glTF

Drag a file into the Content Browser as normal. Quadify Base intercepts both the legacy FBX importer and the Interchange pipeline — nothing changes in your workflow.

17-point QA runs automatically

Scale is fixed, degenerate geometry removed, and all 17 checks fire instantly. The full report is ready before the import dialog closes.

Score is stamped to the asset

A 0–100 composite score, fail count, and warn count are written as asset tags. The Quadify column in the Content Browser shows the score for every mesh in your library.

Fix, generate, ship

Right-click any mesh to generate LODs, build collision, fix normals, or run the full conditioning pass — directly from the Content Browser, no panel needed.

QA Checks

17 checks, zero configuration

Every check runs on import. Results are grouped into Fail / Warn / Pass rows with a plain-English fix hint for every issue found.

Naming convention

Verifies the SM_, MI_, T_ prefix is present and correct for the asset type. Renames automatically if the setting is enabled.

Poly count

Flags meshes that exceed recommended counts for their intended use — prop, character, environment — with a suggested target.

LODs

Checks whether a LOD chain exists. Fails if LOD0 is the only level. One-click generation available in the panel and context menu.

Collision

Detects whether custom collision geometry (UCX) is present. If not, flags as a fail and offers convex hull generation.

Lightmap UVs

Validates channel 1 for overlapping faces and out-of-bounds UVs. Generates and packs a lightmap UV if channel 1 is missing.

Scale

Detects unapplied transforms and non-uniform scale. Fixes automatically on import when auto-conditioning is enabled.

Materials

Checks for null material slots, unused slots, and excessive slot count on simple meshes. Lists each null slot by name.

Normals

Counts faces whose normals point inward. Reports flipped face percentage and offers one-click normal rebuild.

Smoothing

Checks smoothing group assignment and flags meshes with no smoothing data, which can cause rendering artefacts.

Pivot position

Flags meshes whose origin is far from world centre — a common cause of physics and placement issues in large scenes.

Thin triangles

Counts triangles with an aspect ratio above 20:1. High thin-tri counts cause shadow and lightmap bake artefacts.

Overlapping faces

Detects faces that share identical vertex positions — a sign of duplicate geometry from boolean operations or bad exports.

Cull distance

Recommends a per-mesh cull distance based on bounding radius and poly count. Warns when no cull distance is set on dense meshes.

Shadow cost

Evaluates dynamic shadow cost and recommends static shadow baking for movable high-poly meshes.

Nanite readiness

Checks open edges, translucent materials, and poly count to determine Nanite eligibility. Outputs a clear recommendation.

Material slot audit

Full audit of every material slot: null assignments, unused slots, and excessive slot count relative to mesh complexity.

Bounding box

Detects zero-extent or corrupt bounding boxes — which cause invisible meshes and broken culling in large scenes.

Quadify Ultra
Blender 5.0

→

.fbx + sidecar.json

→

Quadify Base
Unreal Engine 5

Automatic on import — no manual steps

SIDECAR DATA READ ON IMPORT

algorithm QuadWild · Hard Edge Preserving

quad_coverage 96.4%

ultra_score 91 · Good

blender_version 5.0.0

Blender → Unreal Traceability

Works with Quadify Ultra

When a mesh is processed by Quadify Ultra in Blender, it writes a small sidecar JSON alongside the exported FBX. Quadify Base reads this automatically on import.

The Unreal QA report shows the Blender algorithm used, the quad coverage achieved, and the Ultra score — giving you full provenance for every asset from first retopology pass to final scene placement.

Quadify Ultra for Blender is a separate purchase available on Superhive and Gumroad.

Technical Details

What's in the package

Editor-only plugin — nothing ships with your game build. Full C++ source included, no compiled-only restrictions.

Compatibility

Plugin type	Editor only — not included in game builds
Engine versions	UE 5.5 · UE 5.6 · UE 5.7
Platforms	Win64 · macOS · Linux
Dependencies	EditorScriptingUtilities (ships with UE5)
Third-party	None
Source	Full C++ source included
Price	Free — no purchase required
Available on	fab.com — quadify3d.com/unreal.html

C++ source files

QuadifyBaseModule.h / .cpp

QuadifyBaseQA.h / .cpp

QuadifyBaseAnalyser.h / .cpp

QuadifyBaseScorer.h / .cpp

QuadifyBaseLOD.h / .cpp

QuadifyBaseCollision.h / .cpp

QuadifyBaseLightmap.h / .cpp

QuadifyBaseRenamer.h / .cpp

QuadifyBaseBatchQA.h / .cpp

QuadifyBaseImportHook.h / .cpp

QuadifyBaseContentBrowserExt.h / .cpp

QuadifyBaseTypes.h

Mesh conditioning,
on every import.

Using Blender to create your assets?

Watch the overview

Import. Score. Ship.

17 checks, zero configuration

Works with Quadify Ultra

What's in the package

Compatibility

C++ source files

Get Quadify Base for Unreal Engine 5

Mesh conditioning,on every import.

Using Blender to create your assets?

Watch the overview

Import. Score. Ship.

17 checks, zero configuration

Works with Quadify Ultra

What's in the package

Compatibility

C++ source files

Get Quadify Base for Unreal Engine 5

Mesh conditioning,
on every import.