Rendering is a photographic term for a retouching technique to re-render a clothing image or photo by adjusting parameters such as light, color, angle, etc. to achieve one's desired effect.
It will convert the three-dimensional light energy transfer processing into a two-dimensional image of the process. Scenes and entities are represented in three-dimensional form, closer to the real world, for easy manipulation and transformation, while most of the display devices for graphics are two-dimensional rasterized displays and dot-matrix printers.
From the three-dimensional entity scene representation N - dimensional raster and dot matrixized representation is the image rendering - that is, rasterization. A raster display can be thought of as a matrix of pixels, and any graphic displayed on a raster display is actually some collection of pixels with one or more colors and shades of gray.
Rendering is a photographic term that refers to a retouching technique of re-rendering a picture of clothes or a photograph by adjusting the parameters of light, color, angle, etc., in order to achieve one's desired effect.
Expanded Information
Rendering Image Process
Before rendering an image, it is necessary to prepare the 3D geometry model information, 3D animation definition information and material information. The 3D geometric model is obtained from 3D scanning, 3D interactive geometric modeling and 3D model library; the 3D animation definition is obtained from motion design, motion capture, motion calculation and dynamic deformation:
The material is obtained from scanned photographs, computer-calculated images, and drawings made by human beings. The work to be done in image rendering is to generate an image from geometric transformations, projection transformations, perspective transformations and window clipping, and then from the acquired material and lighting information. After the image rendering is finished, the image information is output to an image file or video file, or to the frame buffer of the display device to complete the graphics generation.
Source of reference? Baidu Encyclopedia - Image Rendering