What is the grating? Definition also called raster grating grating film, usually refers to the grating material. It refers to have been squeezed into a cylindrical side lines one side of a plane full of plastic materials, and line spacing is equal to that of a cylindrical grating, the grating plane as the use of printing, using raster drawing visual synthesis software, the use of different output device files and raster fit or printed directly on the grating plate is an essential material produced three-dimensional painting. There are several ways cylindrical lens Lenticular stereoscopic imaging principle now obtain three-dimensional, three-dimensional method which parallax observer through a special device does not have to be directly observed with the naked eye. The method uses a cylindrical lens Lenticular stereoscopic imaging principle use cylindrical lenses Lenticular stereoscopic imaging to achieve since the original stereoscopic parallax method, namely the use of human binocular disparity sense of depth and achieve convergence composed of three-dimensional human consciousness. So in theory, only slightly more than from two different points of view to obtain a set of images of the scene before the synthesis of a three-dimensional picture. Lenticular lenses column by many structural parameters and performance identical small cylindrical lenses, this feature makes it an image with "compress" and the "isolation" effect. Many of cylindrical lenticular images can be captured from different angles to fringe status recorded on the same picture. When watching, but also use the same kind of cylindrical lenticular, people's eyes to see two different like the same scene, so people can generate ideas in depth stereoscopic image with parallax effect. Due to the cylindrical lens Lenticular by plane linear arrangement of cylindrical lenses. So cylindrical lens Lenticular stereoscopic image should be called one-way auto-stereoscopic images, its significance is felt only horizontal parallax information. Lenticular classified material from a 3D lenticular material can be divided into three-dimensional material from the material PVC, PP-dimensional material, PET-dimensional material, PS-dimensional material, PMMA-dimensional material is soft PVC Lenticular, made out of three-dimensional finished product can be rolled into a roll mainly used in the product label and product packaging. PP Lenticular is hard, but there are certain softness. Material is not stable, affected by temperature, appearance will shrink, do not fit three-dimensional paintings, mainly for stationery, product decoration. PET is a hard-dimensional grating, usually between 0.3-1 mm thickness, suitable for the small screen, a close look behind the grating can be directly used for the production of three-dimensional picture, the effect is very delicate. PS no PET strong hardness, material properties no PET stable, unstable data so thin, generally made of 2-4 mm thickness, but also the thickness of 5-6 mm. Such a thick grating, a small figure does not have the advantage of PET for bigger maps, ordinary do 50 * 40 cm to 2 m. Stereoscopic than PET. 3D Lenticular material PMMA is very stable material, a very large area to ensure the data is also very stable, than the PS is more suitable for the production of three-dimensional paintings. Ordinary stereo for outdoor advertising, but its high cost of materials, expensive, very few people in the country use. Animation \ Magic \ Mural flat grating placed between the eyes, two pairs of lined note angle parallel to the grating, so his eyes see the same image, if the image is animated by a continuous row of the composition, then when moving or flip up and down up and down the grating eyes, the eyes and the grating angle will change, we will also see one by one continuous image, that see an animation or change drawing effect.