Roll No. Total No. of Pages : 02
Total No. of Questions : 18
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B.Tech (CSE) (Sem.-5)COMPUTER GRAPHICS
Subject Code : BTCS-515-18
M.Code : 78325
Time : 3 Hrs. Max. Marks : 60
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INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
SECTION-A
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Write briefly :
- What is aspect ratio of display devices? What is its importance?
- What is the Phong’s shading?
- What are the limitations of Z-buffer algorithm for hidden surface removal?
- Why are transformations required?
- What is importance of homogeneous co-ordinates?
- What do you mean by viewing?
- What are Cartesian and homogeneous coordinate systems?
- What is meant by the image resolution and image’s aspect ratio?
- What do you mean by clipping?
- Why homogeneous co-ordinates are used in the graphics transformations?
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SECTION-B
- What is the basic architecture of Cathode ray tube? Discuss in detail the random and raster scan displays.
- Write Bresenham’s circle drawing algorithm with example.
- Write the Cohen-Sutherland outcode algorithm.
- What are properties of light? Explain intuitive color and chromaticity concepts.
- What are fractals? How are they represented? What are their applications? Explain.
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SECTION-C
- Derive the transformation matrices for the following transformations :
- Reflection about X-axis.
- Reflection about Y-axis.
- Reflection about origin.
- Reflection about line Y = X.
- Reflection about line Y =-X.
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- Explain Z-buffer algorithm in detail.
- How the 3D images are represented on 2D plane in computer graphics? Explain.
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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