Gujarat Technological UniversitySummer 2026 examination

GTU 3150712 Computer Graphics Summer 2026 Question Paper & PDF

B.E. · Computer Engineering · Semester 5 · Subject code 3150712
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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13 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 16 repeated 3150712 questions, most asked first

Q.1

14 Marks
(a)
3 marksAsked in 2 of 3 papers
List any three major applications of computer graphics.

Also asked in Winter 2025 Q1b

(b)
4 marks

Explain the difference between Vector (Random Scan) and Raster Scan display systems.

(c)
7 marks
Explain the working of CRT (Cathode Ray Tube) with a suitable diagram.

Q.2

14 Marks
(a)
3 marksAsked in 2 of 3 papers

Write DDA line drawing algorithm. Also state the limitations of DDA line drawing algorithm.

Also asked in Winter 2025 Q2c OR

(b)
4 marksAsked in 2 of 3 papers
Explain odd-even, winding number and inside-outside test for polygon filling.

Also asked in Winter 2025 Q2b

(c)
7 marks

Apply Mid-Point Circle Algorithm to find the coordinates of a circle with radius r=10 and center (0,0) for a single octant.

(c)
7 marks

Given end-point P1(1,3) and P2(8,9) find the pixels illuminated using Bresenham Line Drawing algorithm.

Q.3

14 Marks
(a)
3 marks
What is the difference between Window and ViewPort?
(b)
4 marksAsked in 2 of 3 papers

What is a need of homogeneous co-ordinates? Give homogeneous co-ordinates for translation, rotation and scaling.

Also asked in Winter 2025 Q3b OR

(c)
7 marks

Consider a triangle with vertices A(1,1), B(3,2) and C(2,4). Find out the transformation matrix which rotates given triangle about point A(1,1) by an angle 45∘ clockwise.

(a)
3 marks
List and Explain various 2D transformation.
(b)
4 marks
Explain reflection and shear with example.
(c)
7 marksAsked in 2 of 3 papers
Explain the Cohen - Sutherland line clipping algorithm in details.

Also asked in Summer 2025 Q3c

Q.4

14 Marks
(a)
3 marks
Discuss various ways to represent a polygon mesh in brief.
(b)
4 marksAsked in 2 of 3 papers
Write a short note on 3D rotation.

Also asked in Summer 2025 Q4b

(c)
7 marks
List and explain the properties of Bezier curves.
(a)
3 marksAsked in 3 of 3 papers
Write a short note on 3D translation.

Also asked in Winter 2025 Q4a, Summer 2025 Q4a OR

(b)
4 marksAsked in 2 of 3 papers
Compare between interpolation spline and approximate spline.

Also asked in Winter 2025 Q4a OR

(c)
7 marks
List and explain the properties of B-spline curves.

Q.5

14 Marks
(a)
3 marksAsked in 2 of 3 papers
Differentiate: Parallel projection vs. Perspective projection.

Also asked in Winter 2025 Q4b OR

(b)
4 marks
Explain 3D Scaling with example.
(c)
7 marksAsked in 3 of 3 papers
Explain Depth-Buffer method (Z-Buffer) for visible surface detection.

Also asked in Winter 2025 Q5c OR, Summer 2025 Q5c

(a)
3 marksAsked in 2 of 3 papers
Explain ambient light in brief.

Also asked in Winter 2025 Q5a OR

(b)
4 marksAsked in 2 of 3 papers
Compare parallel and perspective projection.

Also asked in Winter 2025 Q4b OR

(c)
7 marksAsked in 2 of 3 papers
Explain how RGB to CMY color models with proper diagram.

Also asked in Winter 2025 Q5c

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About this paper

Official Gujarat Technological University (GTU) examination paper for Computer Graphics (Summer 2026, B.E. · Computer Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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