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One Click Normal Map Generator

by Blender Procedural·Workflow

Illustrative cover generated by AnyPlugins — no product screenshot available.

Why we like it

Earns its place in the superhive library for turning grayscale images into normal maps without leaving Blender, handling both DirectX and OpenGL formats from a single panel.

What is One Click Normal Map Generator?

One Click Normal Map Generator converts grayscale mask images into normal maps inside Blender. An interactive panel lets you import an image, adjust settings, and generate a map in seconds, with a file browser for selecting the source and a live thumbnail of the imported image.

Edge detection uses Sobel and diagonal filters to capture fine surface detail. You can set the radius, which controls the edge blur for slope simulation, and the strength, which adjusts the intensity of the result. Invert Mask flips black and white values before processing, and Disable Blurring skips the slope blur to use the raw mask as a height map. Output can be written in DirectX (Y+) or OpenGL (Y-) format.

Required Python modules are installed automatically, and each map is saved next to the source image with a _normal suffix. The addon runs in the background and refreshes the UI after generation, and it suits logos, decals, masks, and PBR workflows.

Who is One Click Normal Map Generator best for?

One Click Normal Map Generator is best for generating normal maps from logos, decals, masks, and grayscale images for PBR workflows in Blender.

How much does One Click Normal Map Generator cost?

One Click Normal Map Generator is completely free to download and use.

Key features

  • One-click normal map generation from an imported grayscale image
  • Edge detection using Sobel and diagonal filters
  • Adjustable radius (edge blur for slope simulation) and strength
  • DirectX (Y+) and OpenGL (Y-) normal map formats
  • Invert Mask and Disable Blurring options
  • Auto-saves output beside the source image with a _normal suffix, plus live UI refresh and preview thumbnails
  • Post-processing to open the map in Blender's image editor or import it into an image datablock

Tags

#normal maps#texturing#Blender addon#PBR#surface detail#Sobel edge detection#automation#material tools

Frequently asked questions

Does One Click Normal Map Generator need extra Python modules to run?

One Click Normal Map Generator relies on a few Python modules — numpy, opencv-python, Pillow, and requests — and installs them into Blender's environment automatically. A dependency check verifies whether the modules are present and shows a confirmation message when installation succeeds. Windows users should run Blender as Administrator the first time they install. Once the dependencies are in place, the addon runs fully in the background while it processes your image.

Does One Click Normal Map Generator support DirectX and OpenGL normal maps?

One Click Normal Map Generator supports both DirectX and OpenGL normal map formats, so you can match the convention your engine expects. The DirectX option produces a Y+ axis style used in engines like Unreal Engine, while the OpenGL option produces a Y- axis style used in Unity and Blender by default. You choose the format in the panel before generating, alongside settings for radius and strength, and the addon writes the map in the style you selected.

Where does One Click Normal Map Generator save the generated normal map?

One Click Normal Map Generator saves each generated map in the same directory as the source image, adding a _normal.png suffix to the file name. The panel displays the output path so you can see exactly where the file landed, and a live thumbnail previews the result. From there you can open the map in Blender's image editor or import it directly into an image datablock for use in materials or texture slots.

Is One Click Normal Map Generator free?

One Click Normal Map Generator is listed as free in this catalog. For current licensing terms and any usage conditions, check the developer's page, since details can change over time. The addon is published by Blender Procedural, who also offer a range of other Blender addons. A demo video is available if you want to see more before installing, and the developer's page carries the full documentation covering setup, dependencies, and settings.

Alternatives to One Click Normal Map Generator

Also in Workflow for Blender.

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