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
Mathematics: There are some area like Probability, combination, permutation, etc.,that can be well explained along with the help of animation, that helps in enhancing the learning

The hand-held pointer and tablet in the form of a stylus i.e. pen or puck can function one or more of these three functions: (i)  For choosing positions on a drawing or on a men

Write the Liang B arsky line clipping algorithm. Why is Liang Barsky algorithm more efficient than the Cohen Sutherland algorithm?  Liang Barsky Line Clipping: Faster line cl

Multimedia Entertainment: The field of entertainment uses multimedia extensively. One of the earliest and the most popular applications of multimedia are for games. Multimedi

(a) Differentiate between the following compression algorithm: 1. Shannon -Fano Algorithm and 2. Huffman Encoding (b) A statistical encoding algorithm is being considered

Matrix for Orthographic Projection Orthographic projections are projections into one of the coordinate planes x=0, y=0or z=0. The matrix for orthographic projection on the z=0

Assumption for Diffuse Reflection - Polygon Rendering  i) the diffuse reflections by the surface are scattered along with equal intensity in each direction, independent of vie


short note on shading

A color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number of pixels that have colors in each of a