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Scan conversion:
For display of a continuously defined object, a method to map a continuous abstract object or shape into a discrete plane of computer display is needed. This process is called rasterization or scan conversion.
Algorithm (scan-line): For each scan line perform from step (1) to (3). 1) For all pixels on a scan-line, arrange depth [x]=1.0 i.e. max value and Intensity [x] = background
explain vecgen algorithem for line drawing in computer graphics
1. Compare Bresenham line generation with Digital Differential Analyzer line generation. Ans. Bresenham line generation algorithm is better than Digital Differential Analyze
What does refreshing of the screen mean? Some method is required for maintaining the picture on the screen. Refreshing of screen is completed by keeping the phosphorus glowing
what is the numerical numbers
Polygon Rendering and Ray Tracing Methods In previous section we had discussed various methods for visible-surface detection, although in order to produce visibility the prese
To prove: P (u = 0) = p0 Solution : = p 0 B n,0 (u) + p 1 B n, 1 (u) +...... + p n B n, n (u)...............(1) B n,i (u) = n c i u i (1 - u) n-i B n,0
Important points about the bezier curves - modeling and rendering 1) Generalizing the idea of Bezier curve of degree at n based upon n+1 control point p0,.....pn P(0)= P 0
Types of Bitmap Images Bitmap images can include any number of colours but we distinguish among four main categories as: 1) Line-art: These are images that include
Advantages of Scan line Algorithm: This time and always we are working along with one-dimensional array as: x[0...x_max] for color not a 2D-array like in Z-buffer algorithm.
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