Interactive Diffraction from Biological Nanostructures

Dhillon, Daljit Singh Joginder; Teyssier, J.; Single, M.; Gaponenko, I.; Milinkovitch, M. C.; Zwicker, Matthias (2014). Interactive Diffraction from Biological Nanostructures. Computer graphics forum, 33(8), pp. 177-188. Blackwell 10.1111/cgf.12425

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We describe a technique for interactive rendering of diffraction effects produced by biological nanostructures, such as snake skin surface gratings. Our approach uses imagery from atomic force microscopy that accurately captures the geometry of the nanostructures responsible for structural colouration, that is, colouration due to wave interference, in a variety of animals. We develop a rendering technique that constructs bidirectional reflection distribution functions (BRDFs) directly from the measured data and leverages pre-computation to achieve interactive performance. We demonstrate results of our approach using various shapes of the surface grating nanostructures. Finally, we evaluate the accuracy of our pre-computation-based technique and compare to a reference BRDF construction technique.

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