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

Relation between 2-d euclidean system and homogeneous system, Relation betw...

Relation between 2-D Euclidean system and Homogeneous coordinate system Suppose that P(x,y) be any point in 2-D Euclidean system. In HCS, we add a third coordinate to the poin

Geographic information systems (gis)-image processing, Geographic Informati...

Geographic Information Systems (GIS): The most generally utilized software is: ArcMap . Characteristics: I.          Works inside a geographic context. II.         Great

Jpeg graphics, JPEG Graphics: Another graphic file format usually utilized...

JPEG Graphics: Another graphic file format usually utilized on the Web to minimize graphics file sizes is the Joint Photographic Experts Group that is JPEG compression scheme. Not

Define refresh rate and refresh buffer, Refresh Rate: refreshing on raster...

Refresh Rate: refreshing on raster - scan displays is carried out at the rate of 60 to 80 frames per second, although some system are designed for higher refresh rates. Sometimes,

Three dimensional display methods - 2d clipping algorithms, Three dimension...

Three dimensional display methods: Among the simplest three dimensional surface representations are the polygonal surfaces.  A polygonal surface is described by vertices

Raster & Vector display, what is refresh buffer/ identify the content and o...

what is refresh buffer/ identify the content and organisation of the refresh buffer for the case of raster display and vector display.

Describe the term multimedia, Question: (a) Describe the term ‘Multimed...

Question: (a) Describe the term ‘Multimedia'. (b) Briefly describe two main reasons to use ‘Compression' in Multimedia. (c) All Multimedia development teams could have

Illustration, mcqs of illustration in nts test

mcqs of illustration in nts test

Basic tests - producing polygon surface, Basic Tests - Producing Polygon Su...

Basic Tests - Producing Polygon Surface A few basic tests that must be performed before producing a polygon surface through any graphic package as: 1) All vertexes are list

Area subdivision method for hidden surface removal, Q.  Write a short note...

Q.  Write a short note on area subdivision method for hidden surface removal.   Ans. Area Subdivision This technique for hidden- surface removal is essentially an image- spac

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