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

Assignment Help:

Ray Casting -polygon rendering and ray tracing methods

It is a method wherein the surfaces of objects visible to the camera are determined by throwing or say casting rays of light from the viewer in the scene. The concept behind this casting is to shoot rays from the eye, one per pixel and get the closest object blocking the path of such ray - think of an image as a screen-door, along with each square in the screen being a pixel.

275_Ray Casting - Polygon Rendering and Ray Tracing Methods.png

It is then the object the eye usually sees by that pixel. By using the material properties and the consequence of the lights in the view, this algorithm can find out the shading of this object. The simple assumption is made when a surface faces a light, then the light will reach such surface and not be blocked or in shadow. The shading of the surface is calculated by using traditional 3-D computer graphics shading models. This type of casting is not a synonym for ray tracing, although can be thought of as an abridged, and considerably faster, version of the ray tracing algorithm. Both images are order algorithms utilized in computer graphics to render 3-dimensional scenes to two dimensional screens by subsequent rays of light from the eye of the observer to a light source. Though ray tracing is as same to ray casting, this may be better consideration of as an extension of ray casting we will discuss such in the next topic in this section.


Related Discussions:- Ray casting - polygon rendering and ray tracing methods

What is 2d, Question 1 What is 2D? Explain method of converting 2D pattern...

Question 1 What is 2D? Explain method of converting 2D patterns into 3D images Question 2 Write about the following tools to create dart Create dart Multiply dar

Different types of parallel and perspective projection, Q.   Describe diffe...

Q.   Describe different types of parallel and perspective projection used in computer graphics.

Polygon representation methods - modeling and rendering, Polygon Representa...

Polygon Representation Methods - Modeling and Rendering Any scene to be created by computer graphics may include a variety of objects, a few of them natural and manmade. Hence

Space exploration-applications for computer animation, Space Exploration: ...

Space Exploration: now, the farthest point far away from earth which the human was on the moon, although we continually want to learn more. A trip by a human to the other planet w

Functions of hand-held pointer and tablet, The hand-held pointer and tablet...

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

Explain briefly ancillary operations, Problem: a. Explain briefly six A...

Problem: a. Explain briefly six Ancillary Operations? b. When do ancillary operations take place? c. (i) What is flexography? (ii) Provide examples of finished produ

Archeology-applications for computer animation, Archeology: along with the...

Archeology: along with the advent of the computer, the archeologist has obtained a new tool, computer animation. An object-model can be made comparatively quick and without any we

Illumination model - polygon rendering & ray tracing methods, Illumination ...

Illumination Model - Polygon rendering and ray tracing methods Theoretically illumination is exposure of a thing to the light that contributes to light reflected by an object

Determine the steps uses in cohen sutherland line clipping, Steps uses in t...

Steps uses in the Cohen Sutherland Line Clipping Algorithm are: Figure: Steps for Cohen Sutherland Line Clipping STEP 1: Input:  x L , x R , y T , y B

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd