Left Toolbar > Mesh Nodes >
The Mesh To Normal node generates a normal map from the input image using all neighbors around the pixel that is being processed. These neighbors include pixels in different uv islands. The input image is treated as a height map and the slope of the surface is computed from the immediate neighbors of the pixel being processed.
Input image and 3D object
The image to be processed with a mesh image To Normal.
The processed image.
Multiplies the height map difference to increase or decrease the surface slope.
Defines the size of the ring of pixels around the rendered zones, which prevents To Normaling issues when the model and textures are 3D rendered.
This video tutorial shows how to use the Mesh Cells, Mesh Filter and Mesh To Normal nodes to create a reptile skin surface texture.