Ray tracing - polygon rendering and ray tracing methods, Computer Graphics

Ray Tracing - Polygon Rendering and Ray Tracing Methods

Basically Ray tracing is an exercise that is performed to attain the realism in a scene. In easy way Ray Tracing is a worldwide illumination based rendering technique used for generating views of a virtual 3-D scene on a computer. Ray tracing is nearly allied to, and is an extension of ray-casting, a general hidden-surface erased technique. It tries to mimic actual physical effects related with the propagation of light. Ray tracing handles shadows, multiple specular reflections, and texture mapping in an extremely simple straight-forward manner. So, the crux is "Ray tracing is a method of generating realistic images through computer, in which the paths of individual rays of light are followed from the viewer to their points of origin". Any program which implements these techniques of ray tracing is ray tracer. One of the prime benefits of method of Ray tracing is, it makes use of the actual physics and mathematics behind light. Therefore the images generates can be strikingly, life-like, or "photo-realistic".

In this topic we will discuss the basic ray-tracing algorithm. This will also illustrate the concept behind anti-aliasing, a process for enhancing the realism of an image through smoothing the jagged edges caused through the digital nature of computer-displays. This section will not consider any discussions of the more advanced characteristics of today's ray- tracers, as motion blur, depth of field, penumbras as soft shadows, radiosity or texture mapping.

Consequently to precede the journey of ray tracing we will start along with basics as idea of scene and explain its basic elements. Along with this as a foundation, this will then introduce ray casting, and then ray tracing as an extension of ray casting. At last, the section will discuss the fundamental concepts behind anti-aliasing like a meaning of enhancing the realism of an image and will then decide with an overview of how and where actually ray tracing is utilized.

Posted Date: 4/5/2013 3:56:02 AM | Location : United States







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

Write discussion on Ray tracing - polygon rendering and ray tracing methods
Your posts are moderated
Related Questions
Question 1: (a) Explain the term ‘Corporate Identity'. (b) Give four examples of what a Corporate Identity comprises of and briefly explain their uses. (c) You are an employe

Soft Image and Strata Studio - Computer Animation SoftImage It is the one of most well known computer animation software packages. It is used in several top production

Flash - software to generate computer animations Flash: Learning Macro-Media's Flash can quite complicated, although you can do almost anything along with it. You can devel

Find out the matrix of projection for cavalier projection Answer: Cavalier projection corresponds to tan α = 1, leading to the following matrix.

Projections - Viewing Transformation Specified 3-D object in a space, Projection can be explained as a mapping of 3-D object into 2-D viewing screen. Now, 2-D screen is termed


Rotation about z-axis - Transformation for 3-d rotation Rotation about z-axis is explained by the xy-plane. Suppose a 3-D point P(x,y,z) be rotated to P'(x',y',z') along with

Non Trivial Case of cohen sutherland line clippings Case: assume for the line segment PQ, both the trivial rejection and acceptance tests failed (that is, Case 1 and Case 2

Web-based Services: Commonly utilized software is: Protected Area Archive characteristics: Image display, roam, zoom and Image enhancement. Simple image processing.

Time Based and Presentation Tools In such authoring systems, components and events are organized beside a timeline, along with resolutions as high as 1/30 second. Time based to