# Height Map to Normal Map Converter

URL: https://polyscann.com/studio/height-to-normal

Convert a grayscale height or displacement map to an OpenGL normal map. The converter calculates surface gradients with a Sobel filter and lets you adjust normal intensity. It is for height data, not photos, albedo maps, or color textures.

## Input and output

- Input: 8-bit or 16-bit height map
- Maximum input size: 4096 by 4096 pixels
- Output: OpenGL normal map as 8-bit or 16-bit PNG

Conversion runs locally in the browser.