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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.
Categorization of Light resources - Point source This is the easiest model for a light emitter. Currently rays from source obey radically diverging ways from the source positi
Advantages of the Boundary Representation (i) This format gives efficient picture generation and easy access to other geometric information. (ii) The changes produced by mos
Important points about the Surface of Revolution a) if a point on base curve is given by parametric form, that are: (x(u), y(u), z(u)) so surface of revolution regarding to th
Seed fill algorithm A seed fill algorithm starts with a known initial interior point of the polygon and spreads out to determine other interior points to fill the given closed
Poser - software to generate computer animations Poser: Poser through Curious Labs Creates 3-dimentaional complex models which you can view from any angle, distance o
List out the merits and demerits of DVST? The merits and demerits of direct view storage tubes [DVST] are as follows It has a flat screen Refreshing of screen is
Reflection and Types of Reflection Reflection and its types: Reflection: this is the phenomenon of bouncing back of light; such phenomenon obeys laws of Reflec
What is reflection? The reflection is actually the transformation that produces a mirror image of an object. For this use some angles and lines of reflection.
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
Automatic Data Capture There are numerous techniques available to collect data automatically without the need for manual entry. Manual entry is slower, more costly (need to emp
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