This is a filter that processes an image to have craquelure similar to "Italian" pattern craquelure, for that distinct renaissance "Louvresque" feel. :)
You can see it applied at Sketchfab
Also, this is a great way to upscale small sized images intended for 3D environment production, since it adds a bit of depth and detail to the overall processed image as it generates Normal, Height, Roughness, and AO map as well.
To use it you would need Substance Player, freely available at Allegorithmic.
Included in the package is .sbsar used within Substance Player, test image, and a small how-to readme file.
Feel free to use this in your personal and commercial projects, and if you find it useful any donation would be greatly appreciated!
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