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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.
Perspective Projection 1. Perspective projection gives more realistic appearance and uses the same principle as used in camera. 2. Perspective projection is not an affine tr
Example 1: Draw line segment from point (2, 4) to (9, 9) by using Digital Differential Analyzer algorithm. Solution: We know usual equation of line is specified via y = mx
Main objectives: To test to micro-controller I2C protocol bus functionality Setting and displaying accurate time and date on the LCD GENERAL DESCRIPTION The D
Important Points for Windowing Transformations 1. Window explains what is to be viewed and viewpoint describes where it is to be displayed. 2. Frequently window and viewpoi
Differentiate among interpolation spline and approximation spline? When the spline curve passes by all the control points then it is known as interpolate. When the curve is
Graphics Tablet - CAD and CAM We need to know what we mean via tablet in computer terminology, before going into details on the graphic tablet, since in the other disciplines
what is image precision in computer graphics
Assumptions for Area Subdivision Method a) ¾ Plane of projection is z=0 plane b) ¾ Orthographic parallel projections c) ¾ Direction of projection as d= (0,0,-1) d
Stochastic Animation - Computer Animation This utilizes stochastic processes that are a stochastic process can be identified as a random function. Such randomness could be in
Types of Animation Systems - Computer Animation We have discussed above about the sequencing of animation is helpful in developing any animation. Such sequencing is more or le
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