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Book illustration directly adopted the often dominant bright reds and blues in its miniatures, at least as far as representative opaque color paintings were concerned. The inspiration of stained glass affected the patterned ground of the miniatures in particular, while gilding contributed to the luminosity of the manuscripts.
The color of blue eyes is due to the Tyndall scattering of light by a translucent layer of turbid media in the iris containing numerous small particles of about 0.6 micrometers in diameter. These particles are finely suspended within the fibrovascular structure of the stroma or front layer of the iris. [ 9 ]
Miniature of Sinon and the Trojan Horse, from the Vergilius Romanus, a manuscript of Virgil's Aeneid, early 5th century. A miniature (from the Latin verb miniare 'to colour with minium', a red lead [1]) is a small illustration used to decorate an ancient or medieval illuminated manuscript; the simple illustrations of the early codices having been miniated or delineated with that pigment.
In computer graphics, pixels encoding the RGBA color space information must be stored in computer memory (or in files on disk). In most cases four equal-sized pieces of adjacent memory are used, one for each channel, and a 0 in a channel indicates black color or transparent alpha, while all-1 bits indicates white or fully opaque alpha.
A cutaway drawing, also called a cutaway diagram, is a 3D graphics, drawing, diagram and or illustration, in which surface elements of a three-dimensional model are selectively removed, to make internal features visible, but without sacrificing the outer context entirely.
Evidence that light and color do not mingle in air or (other) transparent bodies is (found in) the fact that, when several candles are at various distinct locations in the same area, and when they all face an aperture that opens into a dark recess, and when there is a white wall or (other white) opaque body in the dark recess facing that ...
Transparency in PDF was designed not to cause errors in PDF viewers that did not understand it – they would simply display all elements as fully opaque. However, this was a two-edged sword as users with older viewers, PDF printers, etc. could see or print something completely different from the original design.
PDF has (as of version 2.0) 25 graphics state properties, of which some of the most important are: The current transformation matrix (CTM), which determines the coordinate system; The clipping path; The color space; The alpha constant, which is a key component of transparency; Black point compensation control (introduced in PDF 2.0)