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Proceedings Paper

Photo-real rendering of bioluminescence and iridescence in creatures from the abyss
Author(s): Mark Prusten
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Paper Abstract

The generation of photo-real renderings of bioluminescence is developed for creatures from the abyss. Bioluminescence results from a chemical reaction with examples found in deep-sea marine environments including: algae, copepods, jellyfish, squid, and fish. In bioluminescence, the excitation energy is supplied by a chemical reaction, not by a source of light. The greatest transparency window in seawater is in the blue region of the visible spectrum. From small creatures like single-cell algae, to large species of siphonophore Praya dubia (40m), luminescent phenomena can be produced by mechanical excitement from disturbances of objects passing by. Deep sea fish, like the Pacific Black Dragonfish are covered with photophores along the upper and lower surfaces which emits light when disturbed. Other animals like small squids have several different types of light organs oscillating at different rates. Custom shaders and material phenomena incorporate indirect lighting like: global illumination, final gathering, ambient occlusion and subsurface scattering to provide photo real images. Species like the Hydomedusae jellyfish, produce colors that are also generated by iridescence of thin tissues. The modeling and rendering of these tissues requires thin film multilayer stacks. These phenomena are simulated by semi-rigid body dynamics in a procedural animation environment. These techniques have been applied to develop spectral rendering of scenes outside the normal visible window in typical computer animation render engines.

Paper Details

Date Published: 11 August 2008
PDF: 9 pages
Proc. SPIE 7057, The Nature of Light: Light in Nature II, 70570D (11 August 2008); doi: 10.1117/12.802178
Show Author Affiliations
Mark Prusten, Optical Design Labs. (United States)
Silicon Arts (United States)

Published in SPIE Proceedings Vol. 7057:
The Nature of Light: Light in Nature II
Katherine Creath, Editor(s)

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