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Intersection Test - Visible Surface Detection
Test: It called Intersection Test also: we go for intersection test, if Min-max test fails. Now we take each edge individually and notice if it is intersecting. For illustration, as in the figure 12 there for each edge of P1 the intersection of all edges of P2 that we determined.
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
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
Radiosity - Polygon Rendering & Ray Tracing Methods Radiosity simulates the diffuse propagation of light begin at the light sources. Because global illumination is an extremel
boundary-fill algorithm or flood-fill algorithm As you saw the implementation of scan line polygon fill requires that boundaries should be straight line segments. The seed fi
What are the features found in CAD Features generally found in a CAD package involve: - 2D and 3D modelling - Wire frame - Library of parts that can be used in new dra
What is resolution? Ans. The maximum number of points that can be shown without an overlap on a CRT is known as resolution.
what is frame buffer
Non Trivial Case of cohen sutherland line clippings Case: assume for the line segment PQ, both the trivial rejection and acceptance tests failed (that is, Case 1 and Case 2
Characteristics of vector drawings: Vector drawings are generally pretty small files as they include only data about the Bezier curves which form the drawing. The EPS-file format
Film Recorders - graphics hardware It is a graphical output device for transferring digital images to photographic films. The easiest film recorders classically work through
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