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Mathematical description of an Oblique projection onto xy-plane
In order to expand the transformation for the oblique projection, identify the Figure. This figure explains an oblique projection of the point A (0, 0, 1) to position A'(x',y',0) on the view plane (z=0 plane). The direction of projection i.e. d=(d1,d2,d3). Oblique projections to xy-plane can be identified by a number f and an angle θ. The number f, termed as foreshortening factor, specifies the ratio of projected length OA' of a line to its actual length. Any line L perpendicular to the xy-plane will be foreshortened after projection. θ is the angle that the projected line OA' of a specified line L perpendicular to xy-plane is makes along with the positive x-axis.
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
Subdivision of polygon Test to find out the visibility of a single surface are made through comparing surfaces that as polygons P along regarding a specified screen area A.
Features for good 3-Dimentional modeling software are as: Multiple windows which permit you to view your model in each dimension. Capability to drag and drop primitive
Explain window to view port transformation
Introduction of Polygon Rendering and Ray Tracing Method Different type of sources of light and the reflections generated by the object in exposure of these sources. As an obje
Illumination Model - Polygon rendering and ray tracing methods Theoretically illumination is exposure of a thing to the light that contributes to light reflected by an object
Algorithms for Basic Line Segment Plotting There are two important algorithms for basic line segment plotting-DDA algorithm and Bresenham algorithm. Both the algorithms use th
QUESTION 1. Describe two methods for converting 16x9 widescreen movie to 4x3. 2. Explain clearly the difference between File Format and Codec. 3. What is a video transiti
Define Octrees? Hierarchical tree structures called octrees, are used to show solid objects in some graphics systems. Medical imaging and other applications that needs display
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