ABSTRACT
The previous several chapters have established the mathematical scaffolding we need to look at the second major approach to rendering: drawing objects one by one onto the screen, or object-order rendering. Unlike in ray tracing, where we consider each pixel in turn and find the objects that influence its color, we’ll now instead consider each geometric object in turn and find the pixels that it could have an effect on. The process of finding all the pixels in an image that are occupied by
be called rendering by rasterization. The sequence of operations that is required, Rasterization-based systems are also called scanline renderers.starting with objects and ending by updating pixels in the image, is known as the
graphics pipeline. Object-order rendering has enjoyed great success because of its efficiency.
