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Liang Barsky line clipping algorithm:
The algorithm uses parametric form of the line segment. Four inequalities are created using the parametric form of the line segments. These inequalities are used for processing the line segment in an efficient way.
What is the need of homogeneous coordinates? To perform more than one transformation at a time, use homogeneous coordinates or matrixes. They decrease unwanted calculations in
Q. What are Bezier cubic curves? Derive their properties. OR What are Bezier cubic curves? Derive these properties. Also show that the sum of the blending functions is identical
Differentiate among interpolation spline and approximation spline? When the spline curve passes by all the control points then it is known as interpolate. When the curve is
Define B-Spline curve? A B-Spline curve is a set of piecewise (usually cubic) polynomial segments that pass close to a set of control points. Though the curve does not pass by
What is meant by Addressability? Ans. Addressability is the number of individual dots per inch (d.p.i.) that can be formed. If the address of the current dot is (x, y) then the
Explain window to view port transformation
Use of Interactive Multimedia in Education Virtual reality, where 3-D experimental training can simulate real situations. Computer simulations of things too expensive,
1. Do we have need of to generate the full circumference of the circle utilizing the algorithm or can we can produces it in a quadrant or octant only and after that utilization
Flat Panel Displays - Hardware Primitives 1. Flat panel displays have now become more common. These include liquid crystal displays (LCD) and thin film electroluminescent disp
explain the registers used in video controller
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