Computer Graphics and Animations Important Questions
Computer Graphics and Animations Important Questions For Exams Preparations
Chapter 1: Introduction and Display Technologies
- Define Computer, Advantages of and application areas of Computer Graphics.
- Differentiate between raster scan and vector scan displays.
- Role of the video controller in a raster scan display system.
- Explain the architecture of a random scan display system (with block diagram).
- Differentiate between the beam penetration method and the shadow mask method.
- Define pixel and resolution.
- Concepts of horizontal & vertical retrace of electron beam.
- DDA line drawing algorithm – working principle.
- Bresenham’s line drawing algorithm – working principle.
- Midpoint circle drawing algorithm – working principle.
- Symmetric property of a circle and its use.
- Differences between DDA, Bresenham, and midpoint algorithms.
Numerical Types:
- Generate intermediate points of a line using DDA for given coordinates.
- Rasterize a line using Bresenham’s algorithm for given endpoints.
- Calculate circle points using midpoint circle algorithm for given center & radius.
- Digitize a circle using symmetry.
Chapter 2: Two-Dimensional and Three-Dimensional Transformations
- 2D transformations: translation, rotation, scaling, reflection, shear.
- 3D transformations: translation, rotation, scaling, reflection, shear.
- Write transformation matrices for 3D scaling and shearing.
- Define reflection transformation and derive the 2D reflection matrix along x-axis and y-axis in homogeneous coordinates.
- Explain the need for a homogeneous coordinate system in geometric transformation.
- What is scaling transformation? Prove that two successive scalings are multiplicative.
Numerical Types:
- Apply scaling, rotation, or translation to given 2D coordinates using transformation matrices.
- Perform combined transformations in sequence using homogeneous coordinate matrices.
- Apply 3D reflection or rotation on given 3D object coordinates.
Chapter 3: Clipping and Viewing
- What is clipping? Explain its importance in computer graphics with suitable examples.
- Explain window to viewport transformation – concept and mapping process.
- Explain the 2D viewing pipeline.
- Explain Cohen–Sutherland line clipping algorithm.
- Explain Sutherland–Hodgman polygon clipping algorithm.
Numerical Types:
- Apply Cohen–Sutherland algorithm to clip a line against a given window.
- Apply Sutherland–Hodgman algorithm to clip a polygon against a clipping window.
- Solve window-to-viewport mapping problems for given coordinates.
Chapter 4: Visible Surface Determination
- What is the image space method for visible surface detection?
- Explain the depth buffer method and how depth is used to find visible surfaces.
- Differentiate between object space and image space methods.
- Explain the back-face detection algorithm.
- Explain the Z-buffer algorithm – working, advantages, disadvantages.
- Scan-line algorithm for visible surface detection.
- Different color models – RGB, CMY, YIQ.
- Applications of color models in graphics.
Chapter 5: Animation and Virtual Reality
- What is virtual reality?
- Difference between immersive and non-immersive virtual reality.
- What is animation?
- Steps to create an animation sequence.
- Architecture of a VR system with necessary components.
- Basic principles and types of animation.
- Flash interface: panels, layers, shaping objects, tweening, masking.
Note:This list is for reference purposes only to help you prepare smartly and cover all critical areas of Computer Graphics & Animations. Always review your class notes, teacher guidelines, and syllabus coverage.
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