Transitioning from 2D to 3D, the book covers:

Stack-based fill, scan-line seed fill, and solved numerical problems for practical understanding.

In conclusion, Sushil Goel's book on computer graphics is an excellent resource for anyone interested in this dynamic and rapidly evolving field. The book's comprehensive coverage, clear writing style, and emphasis on practical applications make it an invaluable guide for students, professionals, and enthusiasts. As computer graphics continues to play a vital role in shaping our digital world, Sushil Goel's book is an essential read for anyone looking to explore, learn, or master this fascinating field.