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31. The point at which a set of projected parallel lines appear to converge is called as a
convergence point
vanishing point
point of illusion
point of delusion
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32. In displaying a clipped picture, the efficient method is
clipping against the window and then applying the window transformation
applying window transformation and then clipping against the viewport
both (A) and (B) have the same efficiency
efficiency depends on whether the window is an aligned rectangle or not.
33. A viewgraph is
an oversized slide designed for presentation on an overhead projector.
designed and created by exposing film to the output of the graphics system.
a hardcopy chart
none of the above
34. The best suited hidden surface algorithm to deal with non polygonal, non planar surface patches is
painter's algorithm
ray tracing
Z-Buffer algorithm
scan-line algorithm
35. x = at2; y = 2at, is the parametric equation of a/an
circle
rectangular hyperbola
parabola
ellipse
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