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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.
Variation of Intensity - Modeling and Rendering According to the phong model the variation of Intensity (I) along with α (since I α cos n α) is: i) for shiny surface (
Single Point Perspective Transformation - Viewing Transformations In order to derive the particular point perspective transformations beside the x and y-axes, we construct fi
Vecgen algorithm
Raster Scan Display Device - types of refresh monitors Now day screen display is also based on Cathode ray Tube technology, except that in place of displaying the picture tra
Parallel source and Distributed light source a) Parallel source: this is to be noted that while point source is at an infinite distance then light rays are parallel and func
Important Points for Designing the Animation Sequence There are several applications which do not follow this sequence as, real time computer animations generated by vehicle dr
Hardware For Computer Animation It comes in many shapes, sizes and abilities. Much hardware is specialized to do only specific tasks. Other types of hardware do a variety of t
For orthographic parallel projection: glOrtho(left, right, bottom, top, near, far); glOrtho2D(left, right, bottom, top); Here left, right define the x-direction ex
Advantage and Disadvantage of Plasma panel - Graphics Hardware Advantage 1. Slim design as Wall mountable 2. Larger than LCD screens Disadvantage
What is seed fill? One way to fill a polygon is to begin from a given point (seed) known to be inside the polygon and highlight outward from this point i.e. neighboring pixel
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