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

Assignment Help:

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.


Related Discussions:- Illumination model - polygon rendering & ray tracing methods

Event driven devices - polling, Event Driven Devices - Polling Pollin...

Event Driven Devices - Polling Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is

Distinguish between convex and concave polygons, Distinguish between convex...

Distinguish between convex and concave polygons? If the line joining any two points in the polygon lies totally inside the polygon then, they are called as convex polygons. If

Vecgen, explain vecgen algoritham

explain vecgen algoritham

What is jpeg, Question 1 What is JPEG? How do you change the quality of a ...

Question 1 What is JPEG? How do you change the quality of a JPEG image? Question 2 What are the advantages and challenges of virtual classroom? Question 3 What do

Transformation for 3-d scaling, As we already seen that the scaling proces...

As we already seen that the scaling process is mainly utilized to change the size of an object. The scale factors find out whether the scaling is a magnification as s>1 or a red

Transformation for 3-d rotation, Transformation for 3-D Rotation Rotat...

Transformation for 3-D Rotation Rotation in 3-dimensions is considerably more complicated then rotation in 2-dimensions. In 2-Dimentional, a rotation is prescribed via an angl

Transformation regarding to the mirror reflection to line, The transformati...

The transformation regarding to the mirror reflection to this line L comprises the subsequent basic transformations: 1) Translate the intersection point A(0,c) to the origin, it

Transformation, determine the form of the transformation matrix for a refle...

determine the form of the transformation matrix for a reflection about an arbitrary line with equation y=mx+b.

Phong specular reflection model or specular reflection, Phong Specular Refl...

Phong Specular Reflection Model or Specular Reflection This model of local illumination is frequently termed as the Phong specular reflection model. Here we discuss the matter

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