JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B. Tech III Year COMPUTER GRAPHICS Previous Question Paper (August/September - 2024 - R18)
Note: Part A is compulsory (25 marks). In Part B, Answer any one question from each unit (50 marks total).
Part A
List some application areas of computer graphics.
Answer
- Computer-Aided Design (CAD): Engineering and architectural design.
- Virtual Reality (VR): Immersive simulation environments.
- Scientific Visualization: Representing complex data sets.
- Entertainment: Video games, animation, and special effects.
- Graphical User Interfaces (GUI): Interaction design for software applications.
How do graphics monitors and workstations differ from traditional displays?
Answer
- Graphics Monitors/Workstations: Feature high-performance Graphics Processing Units (GPUs), dedicated frame buffers, and specialized hardware for rendering complex geometry and high-resolution textures. They support advanced color depths and high refresh rates.
- Traditional Displays: Designed primarily for general-purpose computing, document viewing, or video playback, lacking the dedicated hardware acceleration and precision color management required for professional graphics workflows.
What is the purpose of translation in 2-D geometrical transforms?
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What are homogeneous coordinates, and why are they used in computer graphics?
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What is spline representation?
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Briefly describe Hermite curves.
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Define reflection transformation in 3-D graphics.
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What are composite transformations, and why are they useful in 3-D graphics?
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What is key frame system?
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Can you list some general functions commonly used in computer animation systems?
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Part B
Compare and contrast video-display devices, raster-scan systems, and random scan systems.
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Write DDA algorithm for drawing line and write its disadvantages.
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Describe the significance of polygon filling algorithms in computer graphics and their role in rendering solid shapes and regions.
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Explain flood-fill algorithms for filling enclosed regions in a polygon.
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Discuss the process of applying composite transforms in computer graphics.
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Evaluate the Cohen-Sutherland line clipping algorithm.
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Explain shear transformations in detail.
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Describe window to view port coordinate transformation.
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Discuss the significance of polygon surfaces in 3-D object representation.
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Analyze the advantages and limitations of various polygon rendering methods.
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Explain Beizer curves in detail.
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Discuss the Phong illumination model and its extensions.
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Describe the matrix representations used to perform 3-D Scaling transformations.
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Discuss the concept of the view volume in 3-D viewing.
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Compare and contrast different approaches for performing composite transformations.
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Explain the stages of the 3-D viewing pipeline.
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Explain the methods for motion specification in animation.
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Give a note on back face detection algorithm.
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Explain depth-buffer algorithm in detail.
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Discuss the BSP-tree method for finding visible surface.
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