Global illumination model -polygon rendering, Computer Graphics

Global illumination model -polygon rendering

This illumination model adds to the local model the light which is reflected from the other surfaces to the current surface. This model is more comprehensive, more physically correct and generates more realistic images. This is also more computationally expensive. In a Global Illumination Model the reflection of light from a surface is modeled as in the local model along with the addition of light incident on the surface after multiple reflections among other surfaces. Though the model is computationally additionally intensive than a local model although attainment of realism via this model is fairly possible. The two main types of graphics systems which use global illumination models are Radiosity and also Ray tracing. Radiosity and Ray tracing there the dissimilarity in the simulation is the starting point: Ray tracing obeys all rays from the eye of the viewer back to the light sources. Radiosity reproduces the diffuse propagation of light beginning at the light sources. They generate extremely realistic images although are extremely computationally intensive than scan-line rendering systems that use local illumination model.

Posted Date: 4/5/2013 2:00:24 AM | Location : United States







Related Discussions:- Global illumination model -polygon rendering, Assignment Help, Ask Question on Global illumination model -polygon rendering, Get Answer, Expert's Help, Global illumination model -polygon rendering Discussions

Write discussion on Global illumination model -polygon rendering
Your posts are moderated
Related Questions
Question 1 Describe the process of formation of image in human eye Structure of the Human Eye Image formation in the Eye Brightness Adaptation and Discrimination

Approaches to Area Filling  Some other approaches to area filling are   Scan line polygon fill algorithm Boundary fill algorithm Flood fill algorithm.

Behavioral Animation - Computer Animation It used for control the motion of several objects automatically. Objects or "actors" are specified rules about how they respond to th

Basics of Animation - Computer animation Historical and traditional methods for production of animation: As we have studied the transformations linked in computer graphics

Animation and Games - CAD and CAM In our childhood, we all have seen that the flip books of cricketers that came free with some soft drink and where some pictures of similar p

BlackJack is a popular card game played in many casinos. The player plays against the dealer aiming to reach 21 points, or a score higher than the dealer without exceeding 21. The

Question: (a) (i) Give four reasons to explain why are the bitmap images unsuitable for use in a high end print production workflow. (ii) An eps file has two main parts,

Applications that can handle Bitmap Data Hundreds of applications are there in the market which can be used to modify or make bitmap data. For illustration: Adobe Photo Shop, C

Ray Tracing:  Ray t racing is the technique to determine which objects in the scene are visible.  In this to identify the visible surface for each pixel we continue to bounce the

Question : (a) What do you understand by the term ‘contone'? (b) What are spot colours? (c) You have been asked to prepare an artwork (a magazine) to send to a printer.