Adam Hewgill and Brian J Ross.
"Procedural 3D Texture Synthesis Using Genetic Programming".
Computers and Graphics Journal, vol.28, n.4, 2004, pp.569-584.
Preprint (PDF).
Journal web site.
Example A. The following images show procedural textures trained from a model consisting of mountains with white peaks, grey cliffs, and green valley. After extracting sample points from the model, the gradient and blue channels were swapped. The results exhibit a variety of interesting mineral-like effects. The first 2 terrain images in the top row of each solution set are training results. All the solutions use the same experiment parameters, except for different random number seeds.
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Example B. These images are trained from a blue cube with coloured 'ribbons' around each orthogonal direction. Vertex normals are shared (interpolated for surrounding faces). This will give a warping effect to results.
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