Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Describe briefly phong shading algorithm.
OR
Write short note on phong shading.
Phong shading Phong shading or normal vector interpolation shading is an accurate method developed by phong Bui Tuong for rendering a polygon surface. It interpolates normal vectors and then apply the illumination model to each surface point. It displays more realistic highlights on a surface and greatly reduces the Match- band effect. A polygon surface is rendered using Phong shading by carrying out the following steps: 1. Determine the average unit normal vector at each polygon vertex. 2. Linearly interpolate the vertex normal over the surface of the polygon. 3. Apply an illumination model along each scan line to calculate project pixel intensities for the surface point. Phong shading method requires considerably more calculations. Surface rending with phong shading can be speed by up using approximations in the illumination model calculations of normal vectors. Fast phong shading approximates the intensity calculations using a Taylor- series expansion and triangular surface patches. Fast phong shading takes approximation twice as long as to render a surface then with Gouraud shading. Normal phong shading using forward difference takes about six to seven times longer then Gouraud shading.
Removing Polygons Hidden through a Surrounding Polygon: The key to capable visibility calculation lies actually a polygon is not visible whether it is in back of a surrounding
Ask questionkms eey frame syst #Minimum 100 words accepted#
Design and functioning of a refresh cathode ray tube Primary components of refresh cathode ray tube are (i) electron gun used in producing electron beam (ii) heating fila
Traditional Animation techniques as: 1) Key Frames 2) Cel Animation Formula: Required Key frames for a film = {[Time(in seconds)]
What is seed fill? One way to fill a polygon is to begin from a given point (seed) known to be inside the polygon and highlight outward from this point i.e. neighboring pixel
Write short notes on active and passive transformations? In the active transformation the points x and x| show different coordinates of the similar coordinate system. Here all
QUESTION a) Once a print job is accepted by the print service provider, it will be assigned a job number and this information will become part of a printed job ticket, which wi
Multimedia Business: Even fundamental office applications as a MS word processing package or a MS Excel spreadsheet tool turns into a powerful tool along with the aid of mult
difference between vecgen algoritham and bresenham''s algori
differece between circle and eclipse
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd