The beauty of Goel’s book lies in its logical flow. It moves from the absolute hardware basics to advanced three-dimensional rendering.
To understand the value of this book, one must first understand the educational ecosystem it was born into. While foreign authors provide encyclopedic depth, Indian university curricula (specifically for UPTU, AKTU, RGPV, and various state technical universities) require a specific algorithmic approach. Sushil Goel identified a gap: students needed a book that stripped away the excess jargon of OpenGL red books while retaining the core logic of line drawing, polygon filling, and 3D transformations.
The Computer Graphics Book by Sushil Goel is published under the Wiley India or Dreamtech Press umbrella in various editions. It is affectionately known among students as the "Goel Book"—a reference that immediately signals clarity, solved examples, and university-exam focus.
Later editions include a section on Fractals (Mandelbrot set), Animation key-frames, and introduction to OpenGL. computer graphics book by sushil goel
A practical look at how only a portion of a drawing is rendered.
Many students find the ellipse or parabola drawing algorithms daunting. Goel often breaks down equations into tabular iterative steps. For example, the Bresenham decision parameter is presented as a loop table (k=0,1,2...), allowing students to manually calculate pixel positions by hand—a common exam requirement.
Key Concepts
Sample Problem
Derive perspective projection matrix for a point (x,y,z).
Exam Tip – Difference between parallel and perspective projection (size changes, vanishing points).
The strength of this book lies in how meticulously it follows the standard CS/IT Engineering syllabus (common to AICTE model curriculum). Below is a chapter-wise breakdown of what you can expect. The beauty of Goel’s book lies in its logical flow
Computer Graphics is the discipline that bridges the gap between raw mathematical data and the visual interfaces we interact with daily. While the field is vast, academic textbooks like those by Sushil Goel provide a structured, algorithmic approach to understanding how computers draw.
This article distills the essential teachings found in this text—moving from the mathematics of lines to the physics of light—offering a roadmap for students navigating this subject.