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Basic Ray Tracing Algorithm - Polygon Rendering
The Hidden-surface removal is the most complete and most versatile method for display of objects in a realistic fashion. The concept is simply to take one ray at a time, emanating from the viewer's eye (in perspective projection) or from the bundle of parallel lines of sight (in parallel projection) and reaching out to each and every pixel in the viewport, using the laws of optics.
Generally, to avoid wastage of effort by rays starting from sources of light going out of the viewport, the reverse procedure of starting with ray from the viewpoint and traveling to each pixel in the viewport is adopted. If the ray encounters one or more objects, the algorithm filters out all but the nearest object, or when there is an overlap or a hole, the nearest visible portion of all the objects along the line of sight.
Beam Penetration Method and Shadow Mask Method Two methods exist for displaying colors in a CRT monitor - beam penetration method and shadow mask method. Beam penetration metho
what are the methods for character generation
multimedia
all details of Graphical User interface and interactive input methods
View Volumes and General Projection Transformations You have to remember that the view volume is the volume which sets up near and far extents, top and bottom extents and left
Multimedia Tool Features General to nearly all multimedia tool platforms are various features for encapsulating the content, presenting the data, acquiring user input and cont
Camera - polygon rendering and ray tracing methods Camera presents "viewpoint" or "eye" of observer. In order to explain the fundamental working of camera we can consider this
To find out average unit normal vector at each polygon vertex At each polygon vertex as demonstrated by point V in the figure above, the normal vector is acquired by averaging
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
Question: (a) Describe the term ‘Multimedia'. (b) Briefly describe two main reasons to use ‘Compression' in Multimedia. (c) All Multimedia development teams could have
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