Problem with interpolated shading - polygon rendering, Computer Graphics

Assignment Help:

Problem with Interpolated Shading

There are several more shading models that intermediate in complication among Gouraud and Phong shading, linking the liner interpolation of the dot products utilized in the illumination models. Since in Phong shading, the illumination model is estimated at each pixel, although the interpolated dot products are utilized to ignore the expense of calculating and normalizing any of the direction vectors. Such model can generate more satisfactory effects than Gouraud shading when utilized along with specular-reflection illumination models, as the specular term is computed separately and has power-law, quite than linear, falloff. However in Gouraud shading, highlights are missed if they do not fall at a vertex, as no intensity value calculated for a set of interpolated dot products can exceed those calculated for the set of dot products at either end of the span.

There are several problems common to all these interpolated-shading models, some of that we listed this time. Polygonal silhouette:   No matter how excellent an approximation an interpolated shading model gives to the real shading of a curved surface, the silhouette edge of the mesh is now clearly polygonal. We can enhance this situation by breaking the surface in a superior number of smaller polygons, although at a corresponding raise in expense.


Related Discussions:- Problem with interpolated shading - polygon rendering

Cases of clip a line segment-pq, Cases of clip a line segment-pq Case...

Cases of clip a line segment-pq Case 1: As we determine a new value of t E that is value of parameter t for any potentially entering (PE) point we select t max as:  t max

Overview of hardware primitives, Overview of Hardware Primitives With t...

Overview of Hardware Primitives With the advancement of computer technology, computer graphics has become a practical tool used in real life applications in diverse areas such

Determine general graphics system designed for a programmer, Explain the di...

Explain the differences among a general graphics system designed for a programmer and one designed for a specific application, such as architectural design? Basically, package

Differences, difference between vecgen and breshnam algorithm

difference between vecgen and breshnam algorithm

What is translation, What is translation?  Translation is the process o...

What is translation?  Translation is the process of changing the position of an object in a straight-line path from one coordinate location to another. Each point (x, y) in the

Input and output devices - computer aided design, Input and Output Devices ...

Input and Output Devices - computer aided design Output and Input devices are quite significant for any software since an unsuitable selection of the concerned hardware may tu

Polygon representation methods - space partitioning, Polygon representation...

Polygon representation methods - Space Partitioning Representations Space partitioning representations: this type of representation is used for explain the interior pr

Application areas of computer graphics, Explain application areas of comput...

Explain application areas of computer graphics in different areas.    Early computer graphics has only certain special capabilities such as straight lines circles and ellipses

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd