Normal Map Combiner

Easily blend multiple normal maps into a single texture file with the RenderHub Normal Map Combiner. Perfect for adding micro-details to baked geometry, our free browser tool ensures mathematically correct blending for flawless 3D materials.

PBR Texture Generator PBR Channel Packer PBR Material Previewer PBR Albedo & Reflectance Picker Normal Map Combiner Normal Map Channel Inverter UV Checker Map Generator Texel Density Calculator Seamless Texture Generator sRGB to Linear Color Space Converter UOM Converter Model Inspector

3D TOOLS/NORMAL MAP COMBINER

Lit preview

Move the mouse over it to move the light

Open a base normal map to start.

Combined normal map

Each map's convention is detected when it is opened; mixed OpenGL and DirectX maps are combined correctly. Details repeat across the base, so they should be tileable. Everything runs in your browser; nothing is uploaded.

Blend 3D Surface Details with Mathematical Precision

Layering surface details—like adding micro-scratches, fabric weaves, or pores to a base normal map—requires more than just simple image overlays. Simply setting a normal map layer to "overlay" or "multiply" in Photoshop destroys the delicate blue channel math, resulting in broken lighting and black artifacts. Our Normal Map Combiner is built specifically to solve this problem for 3D texture artists.

The Correct Way to Blend Normal Maps

Using industry-standard mathematical blending algorithms (such as Reoriented Normal Mapping or RNM), this tool allows you to merge a base normal map with a detail normal map seamlessly. Preserve the precise vector data of both textures, ensuring your light behaves realistically as it travels across complex surfaces. Whether you are detailing character skin, distressing metal, or adding grain to leather, our normal map blender ensures flawless, high-fidelity texture merging.