Конференции ИВТ СО РАН

Abstracts

Problem of photorealistic visualization of the scenes containing crystals is one of topical problems of computer graphics. This problem cannot be solved using conventional algorithms because of some optical properties peculiar to the crystals which distinguish them from other transparent and semitransparent objects, e.g. birefringence, dichroizm, light polarization and chromatic dispersion. When rendering scenes with crystals it is very important to visualize correctly the effects related to the light polarization and chromatic dispersion. That’s why it is necessary to review the RGB color model, and also to take into account such an important light characteristic as polarization.

In conventional algorithms light polarization is ignored, and chromatic dispersion is simulated rather than modeled. Besides, to render optical properties of crystals it is necessary to be able to assign these properties in scene description. Thus it is necessary to extend scene definition language.

This report is devoted to the analysis of known rendering algorithms that exploit global illumination model to find out whether it is possible to modify them for rendering crystal optics effects and to apply them for the problem of photorealistic visualization of the scenes containing crystals. Specifically, it is substantiated that it is impossible to use backwards ray tracing for photorealistic rendering of the scenes that include more than one crystal.

Note. Abstracts are published in author's edition

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