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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.
2-DIMENSIONAL TRANSFORMATION Modeling transformation is the mechanism to compose an image from modeling primitives. The modeling primitives are defined in their own coordinate
Question: (a) Name two visual effects you would use to communicate: i. Good old days ii. Rebellion iii. Fear (b) Explain each of your answers given in section (a).
Global illumination model -polygon rendering This illumination model adds to the local model the light which is reflected from the other surfaces to the current surface. This
Important Points about the Frame Buffers 1) Within a frame buffer, information storage starts from top left corner and goes until the bottom right corner. 2) By using this
1. What do you understood by the term graphic primitives? Ans. Graphic primitives are the basic graphic objects that can be united in any number and method to produce a new i
How does the Cyrus Beck line clipping algorithm, clip a line segment whether the window is non convex? Solution : see the following figure 13, now the window is non-convex in s
Three Dimensional Concepts and Display Methods Imagine yourself taking a picture by a camera. What do you normally do? You specify a viewpoint and view direction and then s
Role in Education and Training:- A multimedia presentation is an important way to introduce new concepts or described a new technology. Individuals determine it easy to understand
Disadvantages of CAD - Risk of deskilling - High training costs to use packages - Can move work overseas One CAD operator can do work of 5 manual draftsmen
Explain the advantage and disadvantage of Raster CRT Advantages Allows solids, not just wireframes Leverages low-cost CRT technology (i.e., TVs) Bright, i.e.
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