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This renders a polygon surface by linearly interpolating intensity values across the surface. Intensity values for each polygon are matched with the values of adjacent polygon along the common edges, thus eliminating the intensity discontinuities that can occur in flat shading. Each polygon surface is rendered with Gourand shading by performing the following calculation: (i) Determine the average unit normal vector at each polygon vertex. (ii) Apply an illumination model to each vertex to calculate the vertex intensity. (iii) Linearly interpolate the vertex intensities over the surface of the polygon. At each polygon vertex we obtain a normal vector by averaging the surface normal of all polygons sharing that vertex. Thus for vertex position V, we obtain the unit vertex normal width the calculation. One we have the vertex normal's, we determine the intensity at the vertices from a lightning model. Incremental calculations are used to obtain successive edge intensity values between scan lines and to obtain successive intensities along a scan line.
Essential Elements for the Raster Scan Display Three elements are essential for the raster scan display. They are as: 1) The Frame Buffer that is also termed as the Refresh
2-D and 3-D Transformations Previously, we have presented approaches for the generation of polygonal regions and lines. We identified that once the objects are produced, the v
In this project, the image data set consists of 320 training images and 285 test images. Table 1 shows the image data set in details. In addition to the original images, th
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
what is ray tracing algorithm in hidden surface removal
Scan Line Algorithm A scan line algorithm determines the overlap intervals of the polygon with each scan line to obtain interior points of the polygon for assigning those point
Types of Authoring Tools Authoring tools are grouped depends on metaphor used for sequencing or organizing multimedia components and events as: Page or Card Based Tools
WHAT THAT S MEANS 0001
QUESTION 1. Describe two methods for converting 16x9 widescreen movie to 4x3. 2. Explain clearly the difference between File Format and Codec. 3. What is a video transiti
multimedia
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