Computer Graphics
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Computer Graphics
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Section A
Answer any two questions.
1
Define orthographic, parallel, and perspective projections. Consider a region defined by the position vector P = (\begin{bmatrix}1 & 1 & 2 & 1\ 2 & 1 & 2 & 1\ 2 & 2 & 2 & 1\ 1 & 2 & 2 & 1\end{bmatrix}), relative to global XYZ axis system. It is rotated by +300 about X-axis and passes through points (1.5, 1.5, 1.5).find the final position of the region.
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2
What is the method to recognize boundary point and interior point in solid modeling? Describe how BSP recursively subdivided a space into convex sets.
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3
List some significance of vitual reality. Differntitate between virtual reality and augmented reality with example. Demonstrate how a polygon can be created using OpenGL.
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Section B
Answer any eight questions.
4
Discuss the strength and weakness of the human visual system. Describe Spline representation for the curve.
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5
Plot the 1st octant of a circle centered at origin, having the radius 10 units.
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6
Define fractal. Explain the Bezier curve and B-Spine curve.
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7
Find the new c-ordinate of the triangle ABC, with co-ordinates A(0, 0), B(1, 1) and C(5, 2) after it has been magnified to twice of its size.
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8
What is the task of a polygon table? Why do we have to remove hidden surfaces? Explain with any one methodology.
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9
Define intensity attenuation. Distinguish between Gouraud shading and Phong shading model.
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10
What is the advantage of real time rendering over offline rendering? Discuss the limitation of Z-Buffer algorithm.
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11
Describe the requirement for line clipping. Explain the scan line polygon filling algorithm.
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12
What is quadric surface? Compare between diffuse reflection and specular reflection.
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