MCQ Bank
Normalized cross product of two vectors on that surface provides normal vector
- A) Yes
- B) No
- C)
- D)
_________________ sets the global idle call back to be 'func' so a GLUT program can perform background processing tasks or continuous animation when window system events are not being received.
- A) glutMainLoop
- B) glutDisplayFunc
- C) glutReshapeFunc
- D) glutIdleFunc
While building polygonal model of surfaces, we should use T-intersections.
- A) Yes
- B) No
- C)
- D)
NURBS stands for -----------------------.
- A) Non Universal Rational Binary Spline
- B) Non Universal Rational Beta Splines
- C) Non Uniform Rational Binary Splines
- D) Non Uniform Rational Beta Splines
Brenstien polynomial functions are the basic functions of ______________ curves.
- A) NURBS
- B) Both NURBS and Bazier
- C) Bezier
- D) None of the given
A tangent vector certainly defines the slope at one end of the curve, but a vector has characteristics of......
- A) direction
- B) both direction and magnitude
- C) None of the given
- D) magnitude
the French mathematician who made significant contributions to our understanding of cubic and quadratic polynomials.
- A) Leonhard Euler
- B) None of above
- C) Bezier
- D) Hermit
The degree of a Bezier curve is equal to n-1, where n is the number of control points
- A) No
- B) Yes
- C)
- D)
With similar expressions for y(u) and z(u). Again the a, b, c and d terms are constant coefficients. As we did with Equation for a plane curve, we combine the x(u), y(u) , and z(u) expressions into a single vector equation P(u) = ---------------------------------------.
- A) Au2+bu1+cu+d
- B) Au4+bu3+cu2+d1
- C) Au3+bu2+cu2+d
- D) Au3+bu2+cu+d
To ensure a smooth transition from one section of a piecewise __________ to the next, we can impose various continuity conditions at the connection points
- A) parametric curve
- B) polygon vector
- C) Non of the these
- D) non parametric curve
The glClearColor function specifies the red, green, blue, and alpha values used by glClear to clear the color buffers. Values specified by glClearColor are clamped to the range ------------------.
- A) [-1,1]
- B) [.5,1]
- C) [0,-1]
- D) [0,1]
Calculating the normalized cross product of two vectors on that surface provides ----------- vector.
- A) Plane
- B) Space curve
- C) Unit
- D) Normal
Another way to define a space curve by using intermediate points and the tangents at each end for making the curve
- A) No
- B) Yes
- C)
- D)
Bezier curve is tangent to the lines connecting _____________.
- A) Fist two points and last two point
- B) None of the given
- C) First two points
- D) Last two points
Silhouette edges occur when dot product of surface normal vector and the view vector is __________.
- A) One
- B) None of the given
- C) Both zero and one
- D) Zero
OpenGL is well structured with an intuitive design and logical commands. Efficient OpenGL routines typically result in applications with fewer lines of code than those that make up programs generated using other graphics libraries or packages. In addition, OpenGL drivers --------------- information about the underlying hardware, freeing the application developer from having to design for specific hardware features.
- A) None of the given
- B) Shows
- C) Encapsulate
- D) Hibernates
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.
- A) Different
- B) Isolate
- C) None of the given
- D) Same
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 ----------------------.
- A) Quadratic polynomials
- B) Mono polynomials
- C) Binary polynomials
- D) Cubic polynomials
To convert the information in the A matrix into that required for the P matrix, we do some simple matrix algebra. First we have
GP = ------------------------------
- A) NP
- B) NU
- C) UNP
- D) UP
Every point on a curve has a straight line associated with it called the __________
- A) State line
- B) tangent line
- C) curved line
- D) None of the given