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**B.E/B.TECH. DEGREE EXAMINATION, MAY/JUNE 2013**

**Seventh Semester**

**Computer Science and Engineering**

**080230030-Computer Graphics**

**(Regulation 2008)**

**ANNA UNIVERSITY SYLLABUS - Click Here**

**Download PDF File - Click Here**

**PART A-(10*2=20 marks)**

1.Mention any four representative uses of computer graphics.

2.What is refresh rate of a display device?

3.Define translation and scaling.

4.Define window-to-viewport transformation.

5.Distinguish between Perspective and Parallel Projections.

6.Define vanishing points.

7.Define primitive instancing.

8.What is constructive solid Geometry?

9.What is Ambient light?

10.Define Depth Cueing.

**PART B (5*16=80 marks)**

11. (a) Discuss about DDA algorithm and the Midpoint Line Algorithm.

Or

(b) With an example, explain the Cohen-Sutherland Line-clipping algorithm.

12. (a) Discuss about the Homogeneous co-ordinates and Matrix Representation of 2D

Transformations.

Or

(b) Explain about solid body transformations. Also discuss about rotating an arbitrary point

and Reflection through an arbitrary line.

13. (a) Discuss about the basic Three- Dimensional Transformations. [Scaling, Shearing, Reflection,

Rotation].

Or

(b) Discuss about Orthographic Projections, Axonometric Projections, Oblique Projections.

14. (a) Explain the Z-Buffer Algorithm, with example.

Or

(b) Discuss about the Spatial Partitioning Representations and Octree Representations.

15. (a) Explain about specular and Diffuse reflections.

Or

(b) Explain the features and operations of Open GL.

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