✔ 最佳答案
3D "is an acronym for three-dimensional, is three dimensional graphics. Display 3D graphics in the computer, which means that plane in three-dimensional graphic display. Unlike the real world, real three dimensional space and real space. Computer just looks a lot like the real world, so that in the 3D graphics of the computer display is to make people look like the real thing. The human eye has a characteristic is far from small, will form the icing on the cake. Computer screens are two-dimensional, we could enjoy, as a kind of three-dimensional images, because different gray color to display on the computer screen and makes the human eye visual illusion and the two-dimensional computer screen-aware as a three-dimensional image. Based on knowledge about the chromatics, protrusion on the edge of three dimensional objects generally display high brightness color, shrunken partly due to obscuration of light and dark. This recognition is widely used in the Web page or other application buttons, 3D line drawing. For example to draw 3D text, where the original to display high brightness color, while in the lower-left or upper-right position with low brightness color outlines its contour, so visually it will have 3D text effect. When exactly the same fonts available separately in a different location to draw 2D text of two different colors, as long as the two coordinates of the text fit, could have produced different results in Visual 3D text