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Ray Tracing: Ray t racing is the technique to determine which objects in the scene are visible. In this to identify the visible surface for each pixel we continue to bounce the ray around the scene and collecting intensity contributions. This provides a simple and powerful rendering technique for obtaining global reflection and transmission effects. The basic ray tracing algorithm also provides for visible surface detection shadow effects transparency and multiple light source illumination. For each scan line the intensity at the interaction of the scan line with a polygon edge is linearly interpolated from the intensities at the edge end points. For example the polygon edge with end point vertices at position 1 & 2 is intersected by the scan line at point 4. A fast method for obtaining the intensity at point 4 is to interpolate lower intensities I1 & I2 using only the vertical displacement of the scan line.
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"Random Painter" uses an array to store a collection of randomly coloured shapes, either squares or circles as filled shapes or outlines. Using an array imposes severe limitati
B-spline curves - clipping and 3d primitives B-spline curves are piecewise polynomial cubes with one or more polynomial pieces with a minimum smoothness requirement. For examp
what is image precision in computer graphics
Character Generation You know that graphics displays often contain components which are text based. For example graph labels, annotations, descriptions on data flow diagrams,
Computer Animation Tools To create various types of animation discussed above, we want to have particular software and hardware as well. Here, the fundamental constraint is re
what is shearing transformation?
Polygon Filling Algorithm - Raster Graphics and Clipping In several graphics displays, this becomes essential to differentiate between different regions by filling them along
An animation demonstrates a car driving along a road that is given by a Bezier curve along with the subsequent control points: X k 0 5
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