Object Rendering in Graphics

Object Rendering in Graphics

• This first image shows how a set of geometric objects can be displayed, or rendered, on the computer. 
• A model of the object is created to store the locations, or coordinates, of corner points. 
• Each side of an object is treated as a flat surface bordered by three or more outlined edges. 
• The computer is used to calculate how each object appears in perspective view, and then to draw the outlines on the screen.
• This image is drawn in what is called wireframe mode, as if the object had been assembled as a framework of straight wires.

• By a process called hidden line removal, only the portions of the edges visible to the viewer are drawn. 
• The effect simplifies understanding complex scenes by eliminating overlapping lines, and makes objects look solid.

• Using shading on the object surfaces visible to the viewer further improves our ability to interpret their shapes and positions.