🎨 RGBA Texture Merger

Merge AO, Roughness, Metallic & Emissive Maps into a single texture

Upload Grayscale Maps

Red Channel

Drag & drop or click

Green Channel

Drag & drop or click

Blue Channel

Drag & drop or click

Alpha Channel

Drag & drop or click

How It Works

This texture packing tool helps game developers optimize assets by merging grayscale maps (such as roughness, AO, or metallic) into the RGBA channels of a single texture.

About RGBA Texture Merger

RGBA Texture Merger is a free, browser-based tool designed for game developers, 3D artists, and technical creators who want to optimize their assets by combining grayscale maps into a single RGBA texture. By packing maps like ambient occlusion, roughness, metallic, or emissive into individual channels (Red, Green, Blue, and Alpha), this technique significantly reduces the number of texture fetches during rendering, improving performance in real-time engines such as Unity, Unreal Engine, and Godot.

This method is commonly used in PBR (physically based rendering) workflows to maintain high visual fidelity while minimizing GPU memory usage and draw calls. Whether you're building a mobile game or a high-end 3D experience, optimizing texture usage is a vital part of efficient asset pipelines.

Use Cases

  • 🎮 Game Developers: Merge multiple material maps into a single texture for efficient use in real-time engines.
  • 🧱 3D Artists: Prepare textures for export from Blender, Substance Painter, or other 3D tools.
  • 🚀 Mobile Performance: Reduce asset loading time and runtime memory usage.
  • 🔧 Technical Artists: Customize packing based on shader requirements or GPU limits.