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Vexel
Vexel is a neologism for an entirely pixel-based form of raster art that imitates the visual appearance of vector graphics technique (i.e. sharp-edged lines and areas of flat colour or smooth gradient fills). The word itself is a portmanteau derived from a combination of "vector" and "pixel."〔http://www.smashingmagazine.com/2009/07/03/50-beautiful-examples-of-vexel-artworks-and-tutorials/〕
== Technique ==
There is no one defined way to create a vexel,〔(News: Vexed over Vexels )〕〔(Seth Woolley's Blog - Occasional Musings )〕 however, one archetypal way to create a vexel〔(Photoshop, Illustrator, Vector Art and Vexel Tutorials - Vexels.net - Vexel and Vector Art Community )〕 follows. Instead of using vector-based lines, shapes, and polygons to create an image, a vexel is typically created using a raster program's support for transparent layers. Each transparent layer is given a solid (or sometimes gradient〔(Seth Woolley's Blog - Occasional Musings )〕) shape and a display ordering that when displayed together with other near shape layers appears to create a stepped-but-gradual color transition. In some cases, for more realism, gradients are used that remove the stepping in the color transitions to create a smoother, photo-realistic image.
The different nature of raster programs over a vector-plotted approach gives some vexel images a unique appearance when compared with traditional rasterized vector graphics. However, the increased flexibility comes with a loss of image scalability for print media, which vector artwork retains. To compensate for this, most vexels are created at very high resolution.
A vexel may even be composed using vector graphic techniques, however it becomes a vexel when the vector elements are rasterized and further manipulations to the image are done in raster. Sometimes true raster images are placed behind and/or in front of the original vector elements to emphasize the surrealism that the vector elements produce. A vexel is not essentially created with paintbrushes, airbrushes or a freehand tool such as pencil, although some may include these elements if they are not the primary medium. Ben Woolley says "()exels were originally meant to involve a vector technique, not any particular aesthetic style."〔(【引用サイトリンク】title=Vexel )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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