Lamberts cosine law - diffuse reflection, Computer Graphics

Assignment Help:

Lamberts Cosine Law - Diffuse Reflection

"LAMBERTS COSINE LAW" specify that the radiant energy from any minute surface area dA in any direction θ relative to the surface usual is proportional to Cos θ.

In condition of diffused reflection the source is directional although reflection is uniform. As, Id → Intensity of incident as diffused light

After that as per the Lambert's law the intensity of reflected light (I) will be a cos θ. Here, θ = Angle among unit direction of incident light vector and unit standard to the surface as or angle of incidence.

 

1927_Lamberts Cosine Law - Diffuse Reflection.png

 

I a cos θ  ⇒ less θ leads to more reflection and more θ leads to less reflection

Dot product of N and L vectors

811_Lamberts Cosine Law - Diffuse Reflection 1.png

cos θ = cos θ (∴Q | N¯ | and | L¯ | are)


Related Discussions:- Lamberts cosine law - diffuse reflection

Define clipping, Define clipping and covering (exterior clipping)? Clip...

Define clipping and covering (exterior clipping)? Clipping is the process of cutting a graphics display to neatly fit a predefined graphics region or the view port.  This is

Write c program which takes points as input from mouse click, Write a C pro...

Write a C program which takes points as input from mouse clicks (left button) and then performs an action.  Apply your program to generate a closed polygon as follows: Every time a

Important points about the diffuse reflection, Important Points About the D...

Important Points About the Diffuse Reflection An extremely rough surface appears uniformly bright from each viewing direction Q the intensity of reflected light is identical i

Why Video Game Characters Look Better Today, what is the control for Why Vi...

what is the control for Why Video Game Characters Look Better Today

Explain the term- control, Explain the term- Control Traffic lights (co...

Explain the term- Control Traffic lights (controlling the sequence of lights to maintain optimum traffic flow), chemical and nuclear plants (opening and closing valves, safety

Audio file formats, Audio File Formats: It is a container format for ...

Audio File Formats: It is a container format for storing audio data in a computer system. Many file formats are there for storing audio files. The common approach towards

What is the use of control points, What is the use of control points?  ...

What is the use of control points?  Spline curve can be specified by giving a set of coordinate positions known as control points, which shows the general shape of the curve, c

Isosurface, Given arbitrary 8 values at the vertices of a cube, please draw...

Given arbitrary 8 values at the vertices of a cube, please draw the curved iso-surfaces with shading. Also, please draw the saddle point. This can be done relatively easy with phys

Reflection about a line - 2-d and 3-d transformations, Reflection about a L...

Reflection about a Line - 2-D and 3-D Transformations Reflection is a transformation that produces the mirror image of an object. Since we discussed that the mirror reflection

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