computer graphics exam questions and answers latest 2022 Graded A+

computer graphics exam questions and answers latest 2022 Graded A+ what are world coordinate system the main frame in the computer graphics in which all others are related to it The primary frame is the world coordinate system (WCS), also known as the universe or global or sometimes model coordinate system. This is the base reference system for the overall model (generally in 3D), to which all other model coordinates relate. what are the object coordinate system When each object is created in a modelling program, a point must be picked to be the origin of that particular object, and the orientation of the object to a set of model axes the most related coordinate system to word coordinate system define viewing transformation and projection transformation The viewing transformation is the operation that maps a perspective view of an object in world coordinates into a physical device's display space Projection. Projection in computer graphics means the transformation of a three-dimensional (3D) area into a two-dimensional (2D) area. The plane in the area into which we transform (project) objects is called the 'Table'. projection transformation have two main types which are parallel projection perspectve projection which type of projection are suitable for the following scale architectural diagram we use the parallel projection but in realistic rendering of indoor scene we use the perspective projection what method used in clipping in computer graphics cohenen surtherland method are used what does cohonen sutherland method depend on? inside outside window code inwhich the code that not have the 0000 will be not accpeted and which have the 0000 will be accepted coheone sutherland main points 1-'inside-outside window codes'. To determine whether endpoints are inside or outside a window 2-As you proceed around the window, nine regions are created - the eight outside regions and the one inside region 3-. Each of the nine regions associated with the window is assigned a 4-bit code to identify the region 4-Each bit in the code is set to either a 1(true) or a 0(false): rules in the Cohen-Sutherland line-clipping algorithm