VU Final Term Past Papers
139 solved final term past paper MCQs for CS602 (Computer Graphics) at Virtual University, each with the correct answer marked. Use them to learn the VU question style and test your recall. An independent study tool — not affiliated with VU.
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Q1. X2/a2 – y2/b2 =1 is an equation of
Q2. To modify the object shape, shearing transformation cannot be used.
Q3. Computer graphics is very helpful in producing graphical representations for scientific visualization and analysis
Q4. Save a line with both endpoints inside all clipping boundaries.
Q5. At a physical surface, our eye's perception of the color depends on the distribution of photon energies that arrive and trigger our _______ cells.
Q6. A plane is two dimensional since in order to uniquely define any point on its surface we require _______ numbers.
Q7. In perspective projection, for your view to come out correctly, you will also want the _______ to pass through the middle of the screen.
Q8. Neither floating-point nor signed integer values are clamped to the range ________ before updating the current color.
Q9. An object's _______ determine its orientation relative to the light sources. For each vertex, OpenGL uses the assigned normal to determine how much light that particular vertex receives from each light source.
Q10. Which of the following is NOT a modern application for Computer Graphics--- ----------------
Q11. Both Boundary Filling and Flood filling algorithms are non-recursive techniques,
Q12. TV series are made as simply as possible from the animation point of view. This approach is generally known as ------------------------.
Q13. An eight frame run cycle that ------------------ frame/frames to each step gives a fast and vigorous dash. At this speed the successive leg positions are quite widely separated and may need dry brush or speed lines to make the movement flow.
Q14. ----------- reflection is the effect of reflecting light toward the direction from which it came, no matter the orientation of the surface.
Q15. What makes this really challenging to model is that the index of refraction for most materials is a function of the------------------- of the light. This means that not only is there a shift in the angle of refraction, but that the shift is different for differing ---------------of light.
Q16. The reflected light wave turns out to be a ---------------------case since light is reflected at the same angle as the incident wave (when the surface is smooth and uniform, as we'll assume for now).
Q17. Tessellation can be adaptive to the _______ degree of curvature of a surface.
Q18. NURBS stands for-----------------------.
Q19. An orthogonal set of vectors--------------------------
Q20. Bezier curve is numerically the ----------------------- of all the polynomial-based curves used in these applications.
Q21. The ---------------- is most simple example that exhibits the property self- similarity.
Q22. A common mistake people make when creating three-dimensional graphics is to start thinking too soon that the final image appears on a flat, two-dimensional screen. Avoid thinking about which pixels need to be drawn, and instead try to visualize ----------------- space.
Q23. Which of the following properties of rational Bezier curves fails if the weight assigned to a control point is negative?
Q24. The Color Space tool is a handy tool that we can use to interactively add two colours together to see the effects of the various strategies for handling oversaturated colours.
Q25. A polygon is usually defined by a sequence of ------------- and Edges.
Q26. The actual filling process in boundary filling algorithm begins when a point _____________ of the figure is selected.
Q27. If a line connecting any two points within a polygon does not intersect any edge, then it will be a _________ polygon.
Q28. __________ can be defined as a mapping of point P(x, y, z) onto its image P`(x`, y`, z` ) in the view plane which constitutes the display surface.
Q29. The reflected light wave turns out to be a / an ______________ case since light is reflected at the same angle as the incident wave (when the surface is smooth and uniform, as we'll assume for now).
Q30. A space curve can be confined to a plane.
Q31. Bernstein polynomial functions are the basic functions of ______________ curves.
Q32. A parametric curve is one whose defining equations are given in terms of a --- ----------, common, independent variable called the parametric variable.
Q33. Bezier curve is tangent to the lines connecting _____________.
Q34. A space curve is not confined to a plane. It is free to twist through space. To define a space curve we must use parametric functions that are ----------------------.
Q35. Each number that makes up a matrix is called an __________ of the matrix.
Q36. Shadow mask methods can display a __________ range of colors.
Q37. __________ sets the reshape callback for the current window. The reshape callback is triggered when a window is reshaped.
Q38. Bezier curve is the ideal standard for representing the ---------------------------- piecewise polynomial curves.
Q39. Keep polygon orientations consistent to make sure that when viewed from the outside, all the polygons on the surface are oriented in the same direction.
Q40. We want our scene to look more realistic, we should use _________ lights.
Q41. This is a simple example of line clipping: the display window is the canvas and also the default -------------------, thus all line segments inside the canvas are drawn.
Q42. One problem with Gouraud shading is that the ----------- intensities can never be greater than the intensities at the edges.
Q43. There is more penetration of light in case of ___________ surfaces.
Q44. _________ lights should be avoided because they are not for real time environment.
Q45. The physical range of colors a device can display is called _____________________ of the device.
Q46. ______________ is simply the calculation of color reflected by the surface.
Q47. Loosely, the alpha component of the RGBA quad represents the _______________of a surface.
Q48. An algorithm that clips a polygon must deal with many ----------------- cases. The case is particularly noteworthy in that the concave polygon is clipped into ----- ------ isolate polygons.
Q49. ___________ lighting is not dependent on any source.
Q50. In order to get a more realistic representation of lighting, we'll need to understand how light passes through a medium and how hitting the boundary layer at the ------ ----------- of two media can affect light's properties.
Q51. Lambertian shading was used mostly back when computers weren't fast enough to do ________ in real time.
Q52. In Perspective Projection the point of View (POV) must lie on the ___________________.
Q53. If we want any object to glow, we should use ________________ lights.
Q54. There are not many different ways of representing the intensity of a particular color element.
Q55. In Perspective Projection the screen plane must be parallel to the__________________.
Q56. ___________ light is reflected in all directions from surface.
Q57. To convert the information in the A matrix into that required for the P matrix, we do some simple matrix algebra, First we have UA=UNP then Simply A = ------- ------
Q58. Perspective projection is specified with the function glFrustum.
Q59. Choose a camera lens or adjust the zoom
Q60. Using a lighting model based upon the Blind Phong model means that we'll always get a uniform specular highlight based upon the color of the --------------- light and material, which means that all reflections based on this model, will be reminiscent of plastic.
Q61. Refractive index is a function of temperature, mostly due to density changes in materials with changes in temperature.
Q62. Length L depends on the angle alpha and the z coordinate of the point to be projected and L can be represented by --------------------.
Q63. The traditional approach in real-time computer graphics has been to calculate lighting at a vertex as a sum of the ________ light.
Q64. Another way to define a space curve by using intermediate points and the tangents at each end for making the curve
Q65. An independent consortium, the OpenGL Architecture Review Board, guides the OpenGL specification. With broad industry support, OpenGL is the only truly open, vendor-neutral, --------------- graphics standard.
Q66. Refractive index is a function of temperature, mostly due to changes in -------------- -------- of materials with changes in temperature. A simple correction can be applied in most circumstances to allow us to use a value given at one temperature at another.
Q67. If we assign a different value to the parametric variable for the intermediate point, then we obtain different values for the coefficients. This, in turn, means that a different curve is produced, although it passes through the -------------- three points.
Q68. The attenuation formula is f =------------------------, where C, L and Q are the constant, linear and quadratic attenuation factors and d is the distance between the vertex being lit and the light source.
Q69. _________ OpenGL function is used for aiming and positioning the camera towards the object
Q70. To ensure a smooth transition from one section of a piecewise __________ to the next, we can impose various continuity conditions at the connection points non parametric curve parametric curve
Q71. The curve is always contained within the _______ of the control points
Q72. Parity is a concept used to determine which _____________ lie within a polygon. (Choose best suitable answer)
Q73. Weiler-Atherton Polygon Clipping technique modifies the vertex-processing procedures for window boundaries so that _________ polygons are displayed correctly.
Q74. Computer Graphics Solved MCQS Feb 27,2014 From Finalterm Papers CS602- Computer Graphics
Q75. The ---------------- is simplest example that exhibits the property self-similarity.
Q76. Clipping technique modifies the vertex-processing procedures for window boundaries so that _________ polygons are displayed correctly.
Q77. Computer graphics and computer vision are ________ disciplines.
Q78. OpenGL has become the industry's most widely used and supported ____________ graphics application programming interface (API), bringing thousands of applications to a wide variety of computer platforms.
Q79. -------- sets the global idle callback to be ‘func’ so a GLUT program can perform background processing tasks or continuous animation when window system events are not being received.
Q80. Dark lights are nothing more than lights in which one or more of the color values are _____.
Q81. This projection technique has the direction of projection perpendicular to the viewing plane, but the viewing direction is NOT perpendicular to one of the principle faces.
Q82. Which was the oldest shading model?
Q83. The circle and ellipse are symmetric across 8 octants.
Q84. As opposed to direct memory access method, BIOS routines provide an easier and faster method of drawing pixels on screen.
Q85. When a point P(x,y) is rotated by θ the coordinates of transformed point P' are given as:
Q86. The amount of time it takes to illuminate a specific location on phosphor coated screen is called Persistence.
Q87. Incremental line drawing algorithm makes use of the equation of straight line.
Q88. In Horizontal retrace, after completion of all the pixels in a scan line, the refreshing continues from the 1st pixel of the next scan line.
Q89. Parity Rule is used to determine whether a pixel is inside a polygon or not.
Q90. When dot product of two vectors equals zero, this implies that the two vectors are:
Q91. In Pixmap exactly one bit is used to hold color value of each pixel.
Q92. To show 256 colors, the no of bits required for each pixel are
Q93. 25 * 80 resolution with 16 colors supports
Q94. Two matrices are said to be equal, if they have
Q95. Two points are said to be collinear, if they lie on the
Q96. Polygon is complex, if the line connecting:
Q97. Which one is not valid out code to perform trivial accept / reject test in line clipping:
Q98. Which one of the following is not the graphics library is use:
Q99. In video text memory, ______ are used to display a character.
Q100. In _______________ algorithm(s), old color must be read before it is invoked.
Q101. According to the architecture of raster graphics system, display processor memory will act as_________.
Q102. Global coordinate systems can be defined with respect to local coordinate system
Q103. Cross product of two vectors results in a ____________________.
Q104. Shortcoming of Sutherland-Hodgeman Algorithm is concave polygons may be displayed with extraneous lines
Q105. In 2D transformations, rotations applied to a point P can be denoted as___________________ (Where? Represents theta).
Q106. A straight line can be moved to another location by applying _________________ to each of the line endpoints and redrawingthe line between the new coordinates.
Q107. Locations can be translated or "transformed" from one coordinate system to the other.
Q108. If the value of scaling factors sx and sy is greater than 1, then size of objects will be _____________________.
Q109. A column matrix is also known as ______________________.
Q110. Dot product of two vectors results in __________________________ quantity.
Q111. Set up your tripod and pointing the camera at the scene
Q112. _________ is based on characteristic size or scale
Q113. The basic functions fi(u) in Bezier curve must be symmetric with respect to u and (u-2)
Q114. A polygon is usually defined by a sequence of vertices and ------------------
Q115. Gouraud shading is the current de jure shading standard in accelerated ------------ hardware.
Q116. Arrange the scene to be photographed into the desired composition
Q117. Which language API defines graphics operations independent of the operating system or computer hardware? Additional hardware specific libraries are used to provide an interface between API and the hardware and between the user and the platform specific windowing system.
Q118. To ensure a smooth transition from one section of a piecewise __________ to the next, we can impose various continuity conditions at the connection points on parametric curve parametric curve
Q119. Using a lighting model based upon the Blinn Phong model means that we'll always get a uniform specularhighlight based upon the color of the --------------- light and material, which means that all reflections based on this model, will be reminiscent of plastic.
Q120. glutReshapeWindow requests a change in the size of the current window. The width and height parameters aresize extents in pixels. The width and height must be ---------------- values.
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