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

2d shape primitives, 2D Shape Primitives You have already learnt to plo...

2D Shape Primitives You have already learnt to plot a point or a pixel on any display device. In this unit, we shall introduce you to various devices available for data input o

Rotation - 2-d and 3-d transformations, Rotation - 2-d and 3-d transformati...

Rotation - 2-d and 3-d transformations Given a 2-D point P(x,y), that we want to rotate, along with respect to an arbitrary point A(h,k). Suppose P'(x'y') be the effect of ant

Define emissive and non-emissive displays, What do you mean by emissive and...

What do you mean by emissive and non-emissive displays?  The emissive display changes electrical energy into light energy. The plasma panels, thin film electro-luminescent disp

Opengl, difference between gl,glu and glut

difference between gl,glu and glut

What is graphics, What is Graphics It is a term that refers to any com...

What is Graphics It is a term that refers to any computer device or program which makes a computer able of displaying and manipulating pictures. The name also refers to the im

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

Z-buffer, describe z-buffer algorithm removing hidden surface

describe z-buffer algorithm removing hidden surface

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

Classic applications of digital video, The table as given below demonstrate...

The table as given below demonstrates possible values of such parameters for classic applications of digital video. Application                  Frame rate                  Dime

Prepare a cylinder, Question: (a) Write a short note on the dot syntax...

Question: (a) Write a short note on the dot syntax as used in actionScript. (b) A data type describes the kind of information a variable or ActionScript element can hold.

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