Guide

01. Mesh

Purpose

• Model a background or interactive object, export it as FBX, and import the mesh into Modkit to place and utilize it in-game.

Required Files

• Completed FBX file (Skeletal or Static Mesh)
• Textures such as base color, combined maps, and normal maps

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FBX Export Settings Guide

Item	Setting / Description
Scale	1 unit = 1 cm
Nanite	Enabled

⚠️ When exporting from Blender/Maya/3ds Max, even if UV2 is created, it may be omitted unless explicitly included.

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How to Import in Modkit

1. Launch Modkit
2. Import Mesh (choose based on situation) a. Click Import Static Mesh b. Click Import Skeletal Mesh
3. Select the prepared FBX file
4. Check Import Settings
   1. Import Static Mesh
      1. Enable Nanite (recommended for optimization)
      2. Material: Can be auto-generated, but manual reassignment is recommended
   2. Import Skeletal Mesh
      1. Material Curve Suffixes
      2. Index[0]
         • .mat (used to map animation curve values to material parameters)
5. Click Import → Mesh is loaded

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Post-Import Checklist

Type	Image	What to Check
Skeletal Mesh		Check Asset User Data → Index[0] → Anim Curve Meta Data
Static Mesh		- Collision 1. Use Simple Collision As Complex (recommended) 2. Use Complex Collision As Simple 3. Manually create UCX

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Common Issues & Fixes

Issue	Cause	Solution
Animation not compatible	Missing Material Curve Suffixes	Enter .mat in index[0]
Import error	Missing collision	Create manually or use Simple Collision As Complex

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Chapter Summary

Checklist	Done
Is scale set to 1cm?	✅
Is collision set properly?	✅
Is Material Curve Suffix applied?	✅
Is Nanite enabled?	✅

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02. Material

No.	Path	Texture Usage	Purpose
1	/Script/Engine.Material'/Game/BG/Material/MasterMaterial/M_Layer_BLUE.M_Layer_BLUE	- Layer Parameter Usage - R BC, N, Packed, Mask - G BC, N, Packed, Mask - BG BC, N, Packed, Mask - Detail OC, N	Default material used for most objects
2	/Script/Engine.Material'/Game/BG/citysample/Prop/Material/M_Prop_Main.M_Prop_Main	BC, N, OMR	Basic material used without layer
3	/Script/Engine.MaterialFunctionMaterialLayer'/Game/BG/Material/MasterMaterial/MasterLayer/ML_Default.ML_Default	BC, Normal, Packed(AOMRD)	Layer used alongside base material. Useful for tile maps
4	/Script/Engine.Material'/Game/BG/MSPresets/M_MS_Foliage_Material/M_MS_Foliage_Material.M_MS_Foliage_Material	BC, Normal, ORT	Used for grass, trees, etc.
5	/Script/Engine.Material'/Game/BG/Material/MasterMaterial/M_Glass_BLUE.M_Glass_BLUE	Not required	Used for translucent glass
6	/Script/Engine.Material'/Game/BG/Material/MasterMaterial/M_GlassThin_BLUE.M_GlassThin_BLUE	Not required	Used for thin glass
7	/Script/Engine.Material'/Game/BG/Material/MasterMaterial/M_Layer_BLUE_Clock.M_Layer_BLUE_Clock	- Layer Parameter Usage - R BC, N, Packed, Mask - G BC, N, Packed, Mask - BG BC, N, Packed, Mask - No detail layer	Used for clocks

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03. Texture

Name	Description
BC	Base color (Albedo)
N	Normal Map
OMR	R: AO / G: Metallic / B: Roughness
OC	R: AO / G: Curvature / B: Emissive
ORT	R: Opacity / G: Roughness / B: Translucency
Packed (AOMRD)	R: AO / G: Metallic / B: Roughness / A: D (Unused)

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Texture Settings Checklist

No.	Texture	Compression Settings	sRGB	Virtual Texture Streaming
1	Albedo / Base Color / Color Map	Default(DXT1/5, BC1/3 on DX11)	✅	✅
2	Normal Map	Normal Map (DXT5, BC5 on DX11)	❌	✅
3	OMR	Masks(no sRGB)	❌	✅
4	OC	Masks(no sRGB)	❌	✅
5	ORT	Masks(no sRGB)	❌	✅
6	Packed(AOMRD)	Masks(no sRGB)	❌	✅