Illumination model - polygon rendering & ray tracing methods, Computer Graphics

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 to our eyes and such phenomenon in turn fins out the color perceived by a thing. Hence, if white light is incident on an object then if such object absorbs blue and green light so we shall perceive this as being red. The colour of the light incident on the surface will find out the colour perceived via the viewer, for illustration, if you notice red rose in blue light so this will appear black since all blue rays are absorbed through the object and nothing is reflected consequently it appears black. As the same, it is the reflectance of the object surface which determines such an object will appear shining or dull; whether the object absorbs a high percentage of the light incident on it so it will show dull whereas if it reflects a huge percentage of the light falls on it so it will show as shiny or glossy. For instance, the surface would be perceived as black because a red surface absorbs green and blue, if green light were to shine on a red surface.

Thus, to produce realistic computer-generated images of solid opaque objects the diverse interactions of light along with a surface have to be accounted for, in several form of reflected light and for such the Illumination Model is the gift to Computer Graphics from Physics, that will us assist to attain realism in any graphic scene. An illumination model is also termed as lighting model and sometimes considered to as shading model that is utilized to compute the intensity of the light i.e. reflected at a specified point on surface of an object.

Posted Date: 4/5/2013 1:57:57 AM | Location : United States







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

Write discussion on Illumination model - polygon rendering & ray tracing methods
Your posts are moderated
Related Questions
Define the term Avatars- Animation Avatars are another instance of animation. These are frequently used to represent people either in 3-D (as used in computer games) and in 2-D

Derive the common transformation of parallel projection into the xy-plane in the direction of projection d=aI+bJ+cK. Solution: The common transformation of parallel projection

Medicine: this is very tough for a doctor to get inside a living human body and to observe what is occurrence. Computer animation once again comes in very helpful. Every particula

need help in coding


Q. Why are all resolutions in ratio of 4:3? The bad news is that almost every monitor can only display upto a maximum of 262,144 colours (i.e.  18 bits/pixel Colour Depth). The

There are mostly two kinds of Video Tele Conference systems: 1) Desktop systems are add-ons to normal PC's, transforming them in Video Tele Conference devices. A range of variou

3Dstudio - Softwares for computer animation 3DStudio is a 3-D computer graphics programmed. 3DStudio runs on personal computers. This is relatively simple to use. Several schoo

Camera - polygon rendering and ray tracing methods Camera presents "viewpoint" or "eye" of observer. In order to explain the fundamental working of camera we can consider this

List out the various Text clipping?  All-or-none string clipping -if all of the string is inside a clip window, keep it or else discards. All-or-none character clipping - disca