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Q. What is a Bezier Curve? What are blending function? Write an algorithm for generating Bezier Curves.
A curve which has the following properties is called Bezier Curve: 1. A curve section which can be filled to any no. of control points. 2. The no. of control points to be approximated and their relative position to determine the degree of the Bezier polynomial. 3. As with the interpolation splines, a Bezier Curve can be specified with boundary conditions, with a characterizing matrix, or with blending function. 4. Suppose we are given N+ 1 control point position: These coordinate points can be blending to produce the following position vector p(u), which describes the path of an approximation Bezier polynomial function between p0 & pn,
Phong Specular Reflection Model or Specular Reflection This model of local illumination is frequently termed as the Phong specular reflection model. Here we discuss the matter
Describe any two methods for drawing thick lines. Two method for drawing thick lines are: (1) Using the line- width command: "setline width scale factor (iw)" Line width param
What are the advantages of Bresenham's line drawing algorithm over DDA line drawing algorithm? DDA and Bresenham algorithms both are efficient line drawing algorithm. Breaenham
Important points for Bresenham Line Generation Algorithm Note: Bresenhams algorithm is generalised to lines along with arbitrary slopes with identifying the symmetry
what is picture construction technique?explain its various technique?
Touch Panels - Input and output devices It allows displayed screen or object positions to be selected along with the touch of the finger and is also termed as Touch Sensitive
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State the Areas of use of data goggles Entertainment Used in television/films as special effects (for example "holodeck" in Star Trek: The Next Generation and Brazilian
Translation - 2-d and 3-d Transformations It is the process of changing the position of an object. Suppose an object point P(x,y)=xI+yJ be moved to P'(x',y') by the specified
Other File Formats BMP/DIB/RLE File Formats These are termed as device independent bitmap files. They exist in two various type formats: a) OS2 format and b) Windows
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