Differentiate between raster and vector graphics method. [5]
2.
What is polygon table? Explain the use of this method in 3D object representation. [5]
Illumination Models and Surface Rendering Techniques
1.
Define the term 'rendering' in computer graphics. Explain Phong Shading Method with its advantage and disadvantage. [5]
Scan Conversion Algorithm
1.
Explain the working details of Mid-point circle algorithm? Trace the points along the line path having two end points (6,9) and (2,3) using Bresenham's line drawing algorithm. [10]
Solid Modeling
1.
Explain about parametric curve. Describe the properties of Bezier curve. [5]
2.
What are blobby objects? How it is represented? Explain the wireframe representation of 3D objects. [5]
Two-Dimensional Geometric Transformations
1.
Reflect a line segment having endpoints (9,3) and (12,10) about a line Y=7. Draw initial and final result graph as well. [5]
2.
Find the composite transformation matrix for reflection about a line y=mx+c. [5]
Visible Surface Detections
1.
Differentiate between object space and image space methods of hidden surface removal. Describe the Z-buffer hidden surface removal algorithm. [10]
2.
Write the algorithm for Cohen-Sutherland Line clipping. Clip the polygon A(100,150), B(200,250) and C(300,200) with the clipping window defined by the coordinates (100,300), (300,300) and (200,100) using Sutherland Hodgeman Polygon Clipping algorithm. [10]
3.
Calculate the total memory required to store a 8 minute video in a SVGA system with 24 bit true color and 25 fps. [5]
4.
Write short notes on (any two): a. BSP Tree b. Virtual Reality c. Intensity Attenuation [5]