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Disadvantages:
1) Doubles memory needs, one for at least z-buffer and one for refreshes- buffer.
2) Dependency of device and memory intensive.
3) Wasted calculation upon drawing distant points such are drawn over along with closer points which occupy the similar pixel.
4) Spends time when rendering polygons such are not visible.
5) Needs re-calculations while changing the scale.
Categories of Line Segments It categorizes line segments into three categories (i) trivially rejected (ii) trivially selected (iii) may be partially visible or totally invisibl
Describe briefly Sutherland Cohen line clipping algorithm. OR Describe Cohen Sutherland line clipping algorithm. Cohen Sutherland line clipping algorithm In this algorith
Composite Transformations - 2-d and 3-d Transformations We can build complicated transformations as rotation regarding to an arbitrary point, mirror reflection about a line, a
what is character genration
What is scan line algorithm? One way to fill the polygon is to apply the inside test. I.e. to check whether the pixel is inside the polygon or outside the polygon and then hig
what are the methods for character generation
1. Distinguish among Scan line polygon fill and Seed fill or Flood fill algorithm? Scan Line Polygon Flood Fill Algorithms ?1. This
Basic Transformations - 2-d and 3-d Transformations Consider the xy-coordinate system upon a plane. An object or Obj in a plane can be identified as a set of points. All objec
Orthographic and Oblique Projection - Viewing Transformation Orthographic projection is the easiest form of parallel projection that is commonly utilized for engineering drawi
Distinguish between uniform scaling and differential scaling? When the scaling factors sx and sy are assigned to the similar value, a uniform scaling is produced that maintain
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