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

Polygon clipping - raster graphics and clipping, Polygon Clipping - Raster ...

Polygon Clipping - Raster Graphics and Clipping After considerate the idea of line clipping and its algorithms, we can currently extend the idea of line clipping to polygon cl

Can you give some basic features of computer graphics, Can you give some ba...

Can you give some basic features of computer graphics? The methods of computer graphics are the manipulation and creation of graphics (artificial images) by computer.

Line drawing algorithm, when dda line drawing algorithm is more efficient t...

when dda line drawing algorithm is more efficient than bresenhem line drawing algorithm?

Animate 3d articulated character - forward kinematic method, In this progra...

In this programming assignment, you will animate and pose 3D articulated characters by implementing forward and inverse kinematic methods. You should be able to animate character j

Briefly explain how the median filter works, QUESTION 1 (a) Write a run...

QUESTION 1 (a) Write a run method in Image J environment for the following cases Contrast and Brightness Histogram Generation Histogram Equalisation   (b)

Three dimensions, A triangle is having the vertices A(0,0) B(1,2) and C (5,...

A triangle is having the vertices A(0,0) B(1,2) and C (5,2).Magnify the triangle to thrice it''s size while keeping C(5,2) fixed

What is a spline, What is a spline?  To produce a smooth curve by a des...

What is a spline?  To produce a smooth curve by a designed set of points, a flexible strip called spline is used. Like spline curve can be mathematically explained with a piece

Jas file formats, JAS: The JAS file formats were implemented to form the s...

JAS: The JAS file formats were implemented to form the smallest possible picture files for 24bits per pixel image and 8 bit per pixel gray scaled pictures. This uses a discrete co

How is sampling done, Image Processing 1. How is sampling done? Explain...

Image Processing 1. How is sampling done? Explain quantization in digital image processing? 2. Explain in brief: (1) Image Subtraction (ii) Image averaging. 3. Explain in

Viewing transformation, Viewing Transformation In previous section, we...

Viewing Transformation In previous section, we have discussed about the geometric transformations as Translation, Shearing, Reflection, Scaling and Rotation. Rotation, Reflect

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