Shading is concerned with the implementation of the illumination model at the pixel points or polygon surfaces of the graphics objects. In particular, in Computer Graphics, Shading is a method used to create or enhance the illusion of depth in an image by varying the amount of darkness in the image. It can also be used to make some objects appear to be in front of or behind other objects in the image. You need to know that there are various types of shading - Flat Shading (a simple and fast method to specify the color for an object), Gouraud Shading (implemented to improve the smooth transitions of the color on round objects), and Phong Shading (an interpolation technique for surface shading). Let's discuss Shading and all its types in detail in this video.