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

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

Multimedia applications, what are activities to be undertaken or executed a...

what are activities to be undertaken or executed and the expected output of each activity for a plan creation of a movie?

Explain shannon -fano algorithm, (a) Differentiate between the following co...

(a) Differentiate between the following compression algorithm: 1. Shannon -Fano Algorithm and 2. Huffman Encoding (b) A statistical encoding algorithm is being considered

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

Graphic file compression formats, Graphic File Compression Formats Web...

Graphic File Compression Formats Web graphics are by requirement compressed due to the bandwidth issues surrounding networked delivery of information and since image files inc

Negative accelerations - computer animation, Negative Accelerations - compu...

Negative Accelerations - computer animation In order to incorporate decreasing speed in an animation the time spacing between the frames must decrease, thus there exists lesser

How many key frames does a one-minute animation film, How many key frames d...

How many key frames does a one-minute animation film order along with no duplications need? Solution : One minute = 60 seconds Number of frames needed per second=24 Numbe

Dda or digital differential analyzer algorithm, DDA or Digital Differential...

DDA or Digital Differential Analyzer Algorithm - Line generation algorithms From the above discussion we get that a Line drawing is accomplished through calculating intermedi

Distinguish between bitblt and pixblt, Distinguish between bitBlt and pixBl...

Distinguish between bitBlt and pixBlt?  Raster functions that manipulate rectangular pixel arrays are usually referred to as raster ops. Moving a block of pixels from one locat

What is the standard video workflow, QUESTION 1. You are a consultant i...

QUESTION 1. You are a consultant in the field of video production and video editing. You haven been requested to participate in a debate over analog and digital video. Write

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