Illumination-Guided Example-Based Stylization of 3D Renderings

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I think that can simulate this effect using marked and sintesis of the the textures



release: GitHub - jamriska/ebsynth: Fast Example-based Image Synthesis and Style Transfer

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This is cool, because it doesn’t rely on neural networks.

This process is very fast and the results are better especially in HQ

Note the license:

The code is released into the public domain. You can do anything you want with it.

However, you should be aware that the code implements the PatchMatch algorithm, which is patented by Adobe (U.S. Patent 8,861,869). Other techniques might be patented as well. It is your responsibility to make sure you’re not infringing any patent holders’ rights by using this code.

I think that the patents of tecnicas only apply to commercial software, if you do not sell it the code is free software, by that this rewrite.