Polygon rendering and ray tracing methods, Computer Graphics

Polygon Rendering and Ray Tracing Methods

In previous section we had discussed various methods for visible-surface detection, although in order to produce visibility the presence of light is one of the essential needs. It is clear, without light and the interaction of light along with objects; we would never notice anything in any way. A study of the properties of light and how it interacts with the surfaces of objects is thus very important in generating realistic images in Computer Graphics. Thus before identifying the production of images to be utilized in animation or the other application it is worth studying several of the fundamental properties of light and colour and also to initiate the modeling of the interaction of light along with surfaces in Computer Graphics since attainment of realism is one of the fundamental motives of computer graphics and without identifying the effect of light similar cannot be attained.

From Principle Physics we can derive a model that termed as "illumination models", of how light reflects by surfaces and generates what we perceive as color. In common, light leaves several light sources, for instant: a lamp or the sun, and is reflected by some surfaces and so finally reflected to our eyes, or via an image plane of a camera. In generally the process of reflection, scattering by the objects in the path of light rays there is all times creation of shadows and shades along with varying levels of intensities; this idea of shading is very significant in computer graphics since it also contributes to the realism of the scene beneath preparation. Ray tracing is one of the exercises executed to attain the realism in a scene. In easy terms Ray Tracing is a global lighting based rendering method utilized for generating views of a virtual 3- dimensional scene upon a computer. Ray tracing is intimately allied to, and such is an extension of, ray casting, a general hidden-surface removal process. This tries to mimic real physical effects related with the propagation of light. Ray tracing handles shadows, multiple texture mapping and Specular reflections in a extremely simple straightforward way. In this section we have a section offered to Ray tracing where we intend to notify you how the fundamental ray tracing algorithm works. We will acquire a easy approach for the explanation of the concept, ignoring the mathematical perspective that is traditionally utilized on the subject. This is intended mainly to inform the curious, quite than to teach the ambitious.

Objectives of Polygon Rendering and Ray Tracing Methods:

After going through this section, you should be capable to:

  • Illustrate types of light sources and their effects;
  • Discuss Illumination model and various reflections covered in this model;
  • Discuss the idea of shading and its kinds and
  • Illustrate the concept of Ray tracing and algorithms utilized.
Posted Date: 4/5/2013 1:49:26 AM | Location : United States







Related Discussions:- Polygon rendering and ray tracing methods, Assignment Help, Ask Question on Polygon rendering and ray tracing methods, Get Answer, Expert's Help, Polygon rendering and ray tracing methods Discussions

Write discussion on Polygon rendering and ray tracing methods
Your posts are moderated
Related Questions
Hypermedia: it is a superset of hypertext. Hypermedia documents comprise links not only to the other pieces of text, although also to other forms of media: sounds and images and m

Types of Light Resources - illumination Model Let us discuss about the types of light resources. The light sources can not merely be natural like light from Sun or Moon or Sta

Horizontal retrace - Display Devices In a refresh CRT monitor, the time it takes for an electron beam to return to the left most point on the next horizontal line after refresh

MPEG-1 : MPEG-1 that is Moving Picture Experts Group format 1 is an industry standard encoding format that is broadly used. Its normal format is a frame size of about 352 x 240 an

Put the system of a geometric data table for a 3d rectangle. Solution : Vertex Table Edge Table Polygon Surface Table

Question 1: (a) Briefly describe how Parenting could be used in Adobe After effects CS3. (b) Explain the term Vanishing Point and specify when it can be used. Propose how

Bezier Surfaces - Modeling and Rendering Two sets of Bezier curve can be utilized to design an object surface by identifying by an input mesh of control points. The Bézier su

Consider the line segment AB in 3-Dimentional parallel to the z-axis along with end points A (- 5,4,2) and also B (5,-6,18). Carry out a perspective projection upon the X=0 plane;

1. Use the outline method to plot the following font boundaries (style should remain the same). Implement your method in C language.    ANswer: Here letter G is produced

Traditional Animation techniques as: 1) Key Frames                        2) Cel Animation Formula: Required Key frames for a film = {[Time(in seconds)]