Ray tracing {ray tracing and sensations} tests light-source and surface-reflection light rays, to see where they land on object-depth-indexed two-dimensional-surface displays. Ray tracing indexes object locations, directions, and distances, as well as shapes, overlaps, shadows, light sources (emissions), absorptions, reflections, refractions, opaqueness, translucency, transparency, and color variations [Glassner, 1989].
Vector graphics {vector graphics and sensations} [Foley et al., 1994] represents scenes using geometric-figure descriptors, such as "circle", which have parameters, such as "color", "radius", and "center", which have values, such as "black" or "2". Descriptors have positions relative to other descriptors or to the display.
Vector graphics represents images using mathematical formulas for volumes, surfaces, and curves (including boundaries) that have parameters, coordinates, orientations, colors, opacities, shading, and surface textures. For example, circle information includes radius, center point, line style, line color, fill style, and fill color. Vector graphics includes translation, rotation, reflection, inversion, scaling, stretching, and skewing. Vector graphics uses logical and set operations and so can extrapolate and interpolate, including filling in.
1-Consciousness-Speculations-Sensation-Computer Science
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Date Modified: 2022.0225