Bulk Material Texture Swapper

Duplicate a material × N textures = N new materials — instantly.

Stop manually duplicating materials one by one. This Unity Editor tool lets you take any source material, pick a texture slot, drop in a folder of textures, and generate a complete set of new materials in seconds.

What It Does

Select a source material, scan it to detect all its texture properties, choose which slot to swap (_MainTex, _BumpMap, _Metallic, etc.), drag in your textures (or an entire folder), set an output folder, and hit Generate. Every texture gets its own fully independent material — same shader, same settings, only the chosen slot swapped.

Perfect for:

• Character skin/color variants
• Enemy or NPC material sets
• Armor, clothing, and prop texture libraries
• Rapid prototyping — generate 20 variants in seconds, delete what you don't need

Features

• ✅ Works with Standard, PBR, and custom shaders (any shader with TexEnv slots)
• ✅ Bulk folder drag-and-drop — auto-detects every texture in a folder
• ✅ 142+ texture slots supported — scan once, switch slots freely without re-scanning
• ✅ Auto-named outputs — SourceMat_TextureName.mat naming convention
• ✅ Nested output folders — type any path and it's created automatically
• ✅ Generated materials are fully independent — edit freely without touching the source
• ✅ No re-scanning needed to generate for different slots — pick a new slot and regenerate

How It Works

1. Drag your source material into the Source Material slot
2. Click Scan Material to detect all texture properties
3. Pick a texture slot to replace (highlighted in blue when selected)
4. Drag in textures — individual files or an entire folder
5. Set your output folder (or browse to one)
6. Click GENERATE — done!

Use Cases

Variant Materials for Enemies Source: EnemyBase.mat | Slot: _MainTex | Textures: EnemyGreen.png, EnemyRed.png, EnemyBlue.png → 3 materials instantly

Bulk Armor Skins Source: ArmorPBRMaterial.mat | Slot: _MainTex (albedo) | Drag entire /Textures/Armor folder → 20 armor materials in seconds

Avatar Clothing Source: Joggers.mat | Slot: _MainTex | 43 textures loaded → 43 unique pant materials, all organized in your chosen output folder

Pro Tips

• Drag whole folders — the tool auto-detects every texture inside
• Swap different slots without re-scanning — just pick a new slot and generate again
• Nested folders auto-create — type Assets/Generated/Characters/Skins/Variants and it's made for you
• Custom shaders work as long as they define TexEnv properties

Requirements

• Unity Editor (any recent version)
• Shader must expose texture properties via TexEnv for Scan to detect them