Problem with interpolated shading - polygon rendering, Computer Graphics

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.

Posted Date: 4/5/2013 3:37:38 AM | Location : United States







Related Discussions:- Problem with interpolated shading - polygon rendering, Assignment Help, Ask Question on Problem with interpolated shading - polygon rendering, Get Answer, Expert's Help, Problem with interpolated shading - polygon rendering Discussions

Write discussion on Problem with interpolated shading - polygon rendering
Your posts are moderated
Related Questions
Multimedia: it is the use of different media to present a specific subject. This representation itself is a multimedia presentation implies; it brings together text and graphics.

Example1: Translate a square ABCD along with the coordinates as: A(0,0),B(5,0),C(5,5),D(0,5) via 2 units in x-direction and 3 units in y-direction. Solution: We can show the

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

Functions Available in Animation Packages Some broad functions available in animation packages are as: Object Function to manage and store the object database , where

Explain rubber-band interactive picture technique


what is the control for Why Video Game Characters Look Better Today

what is fixed point scaling? how composit transformation techniques works on it


What do you mean by emissive and non-emissive displays?  The emissive display changes electrical energy into light energy. The plasma panels, thin film electro-luminescent disp