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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.
Architecture: One of the purposes for the development of virtual reality (that is in fact a form of computer animation) was which it was going to be very helpful to architects. He
Question: Is CAD only helpful for design drawings? No. When true-scale, structurally valid drawings are the purpose for CAD's existence; it utilizes is as diverse as imagination
De Casteljeau algorithm: The control points P 0 , P 1 , P 2 and P 3 are combined with line segments termed as 'control polygon', even if they are not actually a polygon although
MPEG-2 : MPEG-2 that is Moving Picture Experts Group format 2 is the standard used through DVD and is of a much higher quality than MPEG- 1. This format gives for 720 x 480 resolu
How many 128 x 8 RAM chips are needed to provide a memory capacity of 4096 16 bits?
How many key frames does a one-minute animation film order along with no duplications need? Solution : One minute = 60 seconds Number of frames needed per second=24 Numbe
Light Sources - polygon rendering and ray tracing methods Light Sources are key parts in any ray traced scene, since without them; there would be no rays to trace. Light sour
Define Affine transformation? A coordinate transformation of the form X= axxx +axyy+bx, y 'ayxx+ayy y+by is known as a two-dimensional affine transformation. Every of the tra
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
Important points for Bresenham Line Generation Algorithm Note: Bresenhams algorithm is generalised to lines along with arbitrary slopes with identifying the symmetry
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