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Gourand shading OR Intensity interpolation scheme
Now there polygon is rendered through linearly interpolating intensity values across the surface. Intensity values for all polygons are matched along with the values of adjacent polygons beside the general edges, hence eliminating the intensity discontinuities which can arise in flat shading.
Computations to be performed for all polygon surfaces rendered along with Gourand shading as:
1. Find out average unit normal vector at each polygon vertex.
2. Apply illumination model to all vertex to compute the vertex intensity.
3. Linearly interpolate the vertex intensities over the surface of the polygon.
State the Areas of use of data goggles Entertainment Used in television/films as special effects (for example "holodeck" in Star Trek: The Next Generation and Brazilian
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For good understanding of the application of the rules specified above see the following figure, where the shaded region demonstrates the clipped polygon. Fi
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