THEORY EXAMINATION (SEM–IV) 2016-17 COMPUTER GRAPHICS
Subject: Computer Graphics (NCS403)
Exam Type: Theory
Semester: IV (4th Semester)
Duration: 3 Hours
Maximum Marks: 100
Section A — Short Questions (10 × 2 = 20 Marks)
These are basic conceptual and definition-based questions testing core knowledge of computer graphics.
Topics covered:
Purpose and working of a video controller DDA algorithm — tracing a line from (0,0) to (-6, -6)
Definition of refresh buffer Transformation matrix for rotation about an arbitrary point in space
Proof of commutative property of successive rotations Function of shear transformation
Properties of B-spline curves Difference between specular reflection and diffuse reflection
Difference between viewport and window Explanation and examples of aliasing and antialiasing
Section B — Descriptive / Numerical Questions (5 × 10 = 50 Marks)
These are analytical and calculation-based questions involving algorithms and geometry.
Key questions:
Bresenham’s Line Drawing Algorithm: Derivation and comparison with DDA.
Display parameter problem: Calculation of Pixel aspect ratio
Frame buffer size Data transfer rate (KB/sec)
Window-to-Viewport transformation: Mapping coordinates with accurate diagrams.
Hidden surface removal algorithms: Scan-line vs. Depth buffer technique.
Cohen–Sutherland line clipping algorithm — step-by-step explanation.
Explanation of quadratic and polygonal surfaces.
Description of Warn model (lighting or shading model)
Section C — Long Analytical / Derivation Questions (2 × 15 = 30 Marks)
Transformation Composition:
Given figures A(-2,0), B(0,-2), C(-2,-4), D(-4,-2) transformed to A'(1,-1), B'(3,3), C'(6,3), D'(4,-1) using a composite transform (T₂ × H₁ × S₁ × R₁ × T₁).
Write all transformation matrices Reduce to a single scale, rotation, and translation matrix
Area Subdivision Algorithm:
Explanation with suitable diagram Advantages and disadvantages
Visible Surface Detection Methods:
Detailed discussion on all visibility determination algorithms used in 3D rendering
Major Topics Covered
Line drawing algorithms (DDA, Bresenham)
2D and 3D geometric transformations (rotation, scaling, translation, shearing)
Window-to-viewport mapping Hidden surface removal
Surface modeling (quadratic, polygonal) Shading models (specular, diffuse, Warn)
Line clipping (Cohen–Sutherland) Area subdivision and visible surface detection
Purpose of the Paper
This exam checks both theoretical and practical understanding of 2D/3D graphics, including transformation algorithms, rendering concepts, and visualization principles.
Students must be comfortable with matrices, coordinate geometry, and algorithms for drawing, clipping, and transforming objects on a computer screen.
Related Notes
BASIC ELECTRICAL ENGINEERING
ENGINEERING PHYSICS THEORY EXAMINATION 2024-25
(SEM I) ENGINEERING CHEMISTRY THEORY EXAMINATION...
THEORY EXAMINATION 2024-25 ENGINEERING MATHEMATICS...
(SEM I) THEORY EXAMINATION 2024-25 ENGINEERING CHE...
(SEM I) THEORY EXAMINATION 2024-25 ENVIRONMENT AND...
Need more notes?
Return to the notes store to keep exploring curated study material.
Back to Notes StoreLatest Blog Posts
Best Home Tutors for Class 12 Science in Dwarka, Delhi
Top Universities in Chennai for Postgraduate Courses with Complete Guide
Best Home Tuition for Competitive Exams in Dwarka, Delhi
Best Online Tutors for Maths in Noida 2026
Best Coaching Centers for UPSC in Rajender Place, Delhi 2026
How to Apply for NEET in Gurugram, Haryana for 2026
Admission Process for BTech at NIT Warangal 2026
Best Home Tutors for JEE in Maharashtra 2026
Meet Our Exceptional Teachers
Discover passionate educators who inspire, motivate, and transform learning experiences with their expertise and dedication
Explore Tutors In Your Location
Discover expert tutors in popular areas across India
Discover Elite Educational Institutes
Connect with top-tier educational institutions offering world-class learning experiences, expert faculty, and innovative teaching methodologies