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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.
Key Frame Systems - computer animation This method is for low-level motion control. In fact these systems comprise languages that are designed simply to produce the in-between
Determine the transformation matrix for: a) Cavalier projection with θ=45 0 , and b) Cabinet projection with θ=30 0 c) Draw the projection of unit cube for all transfor
Three-Dimensional Viewing Three dimensional objects are created using modelling coordinate system. The modelled objects are then placed in locations specified in the scene with
Methods of Animation - Computer Animation First method: in this, artist makes a succession of cartoon frames that are then combined in a film. Second method: in this,
Multimedia Applications: The term itself clarifies; this is a combination of various Medias of communication as text, graphic, audio and so on. Currently this field of multimedia i
Event Driven Devices - Polling Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is
Picture Information - Raster Graphics and Clipping Now, the picture information is accumulated in the form of bit plans on which all bit plane complete information of pictur
Describe briefly Sutherland Cohen line clipping algorithm. OR Describe Cohen Sutherland line clipping algorithm. Cohen Sutherland line clipping algorithm In this algorith
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