3D Lighting: History, Concepts, and Techniques (With CD-ROM) by Arnold Gallardo PDF

By Arnold Gallardo

ISBN-10: 1584500387

ISBN-13: 9781584500384

Книга для 3D-визуализаторов из разряда «маст хэв» - прекрасно иллюстрированное справочное пособие по созданию освещения сцены: теория, общие принципы, конкретные примеры.

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Extra info for 3D Lighting: History, Concepts, and Techniques (With CD-ROM) (Graphics Series

Sample text

This kind of spectral sensitivity filtration, together with dye coupling and eventual bleaching, is the basis for all color negative films, slide films, and color prints. Not all films generate color through dye coupling, however. Kodachrome’s color is introduced during film development rather than being present in the emulsion itself. , long lasting) than regular film. No matter what kind of film is used, photography is still about the capture and control of light as it falls on a scene or subject.

The latent image is then visible but is not permanent. If the film were exposed to light at this stage, the entire image would blacken, since the shadow areas would then react to the light. This is the classic Wedgwood image-fading problem. To resolve it, the film needs to be fixed. The fixer is generally sodium hyposulphite, or hypo for short. It dissolves the milky silver halides that did not react with light and makes those areas transparent. Now we have black exposed areas as well as a light transparent area, which together form a negative.

The problem with this method of “photography” is that gradually, the protected areas darken when exposed to ambient light. Numerous attempts in the early 1700s to make the exposed image permanent failed. It was not until 1839 that Sir John Herschel found that sodium hyposulphite can make the images permanent. He is also credited with inventing the word photography. ” Reading this appendix will help you understand the physical and chemical basis for the premier art form of the 20th century, which is cinema.

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3D Lighting: History, Concepts, and Techniques (With CD-ROM) (Graphics Series by Arnold Gallardo

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