CS602-Midterm
1 / 50
Silhouette edges occur when dot product of surface normal vector and the view vector is __________.
2 / 50
Using Cohen-Sutherland line clipping, it is impossible for a vertex to be labeled 1111.
3 / 50
Various curve functions are useful in ______.
4 / 50
In __________ algorithm(s), old color must be read before it is invoked.
5 / 50
Sutherland-Hodgeman clipping algorithm clips any polygon against a concave clip polygon
6 / 50
Shortcoming of Sutherland-Hodgeman Algorithm is concave polygons may be displayed with extensors lines
7 / 50
Orthographic projections that show more than one side of an object are called __________ projections.
8 / 50
It is safe to assume that all raster-type monitors can accept the same input
9 / 50
If the polygons are _______, line-clipping techniques are sufficient for clipping.
10 / 50
Which one is not valid out code to perform trivial accept / reject test in line clipping:
11 / 50
Polygons are basically concave polygons that may have self-intersecting edges
12 / 50
The given primitives are clipped to the boundaries of _______ and primitives lying outside are not drawn.
13 / 50
By preserving the original shape of an object with a scaling is called _______ scaling.
14 / 50
Perspective projection is specified with the function glFrustum().
15 / 50
16 / 50
Boundary Filling Algorithm can work for complex polygons.
17 / 50
In Trivial acceptance/reject test there are four bits of nine regions, Bit 4 represents condition_____.
18 / 50
Which of the following is not true about matrices?
19 / 50
A scaling transformation alters the ______ of an object.
20 / 50
________is used to move a point, or a set of points, linearly in space
21 / 50
Vectors can be multiplied in a way
22 / 50
A * B = |A| * |B| * cos(?) Where ? is the angle between the two vectors
23 / 50
Each hyperbola consists of two __________ .
24 / 50
__________ is the process of describing an object or scene so that we can construct an image of it
25 / 50
In Trimetric the direction of projection makes unequal angle with the three principal axes
26 / 50
If the value of scaling factors sx and sy is greater than 1, then size of objects will be ____________.
27 / 50
In Trivial acceptance/reject test there are four bits of nine regions, Bit 3 represents condition_____.
28 / 50
Both Boundary Filling and Flood filling algorithms are ____ as compared to scan line filling algorithm.
29 / 50
Two points are said to be collinear, if they lie on the
30 / 50
In video text memory, ________ are used to display a character.
31 / 50
There are _______ basic types of polygon.
32 / 50
A fractal is generally a property called ___________.
33 / 50
In video text memory, ______ are used to display a character.
34 / 50
35 / 50
actual filling process in boundary filling algorithm begins when a point ____ of the figure is selected.
36 / 50
__________transformation produces shape distortions as if objects were composed of layers that are caused to slide over each other.
37 / 50
We can take transpose of any matrix.
38 / 50
A * B = |A| * |B| * cos(?) where ? is the angle between the two vectors
39 / 50
Both Boundary Filling and Flood filling algorithms are non-recursive techniques.
40 / 50
The process of subdivision an entity or surface into one or more non-overlapping primitives.
41 / 50
Computer graphics is very helpful in producing graphical representations for scientific visualization.
42 / 50
In Trivial acceptance/reject test there are four bits of nine regions, Bit 1 represents condition_____.
43 / 50
Bezier curve can represent the more complex piecewise ___________ curve.
44 / 50
45 / 50
The axonometric projection is ___________ where the direction of projection makes same angle with all axes.
46 / 50
47 / 50
The circle and ellipse are symmetric across 1 octants.
48 / 50
Set up your tripod and pointing the camera at the scene
49 / 50
Discard a line with both endpoints outside clipping boundaries is called as
50 / 50
We can draw the circle using _________
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