Estimate general light such as bouncing around scene, Computer Graphics

Assignment Help:

identify a sphere along with a light source above it; hence its lower half will not be illuminated. In practice in a actual scene this lower half would be partially illuminated through light which had been reflected from the other objects. This consequence is approximated in a local illumination model via adding a term to estimate this general light such is 'bouncing' around the scene. This term is termed as the ambient reflection term and is modeled through a constant term. Again the amount of ambient light reflected is dependent upon the properties of the surface. This is to be noticed that if Ia → intensity of ambient light; Ka → property of material as Ambient reflection coefficient ka , 0 < ka < 1 then consequential reflected light is a constant for all surfaces individual of viewing direction and spatial orientation of surface.

As like:     

Ia → Intensity of ambient light.

I → Intensity of reflected ambient light

This is assumed here Ia ≠ 0 (Q Ia = 0 ⇒ such does not exit any light)

I a Ia ⇒ I = Ka Ia;

Ka → constant; 0 ≤ Ka ≤ 1

Ka = 0 ⇒ object has absorbed the entire incident light. Ka = 1 ⇒ object has reflected the entire incident light.

0 ≤Ka ≤1 ⇒ object has reflected several and absorbed light.


Related Discussions:- Estimate general light such as bouncing around scene

What is transformation, What is Transformation?  Transformation is the ...

What is Transformation?  Transformation is the method of introducing changes in the shape size and orientation of the object using scaling rotation reflection shearing & transl

Scripting systems- computer animation, Scripting Systems- Computer Animatio...

Scripting Systems- Computer Animation Scripting Systems are the earliest type of motion control systems. Scripting systems permit object specifications and animation sequenc

Color Histograms - Scene Categories, How can I perform feature extraction o...

How can I perform feature extraction on images of different classes? How to obtain a vector of each class that contains its features?

3d primitive and composite transformations, 3D Primitive and Composite Tran...

3D Primitive and Composite Transformations Previously you have studied and implemented 2D geometric transformations for object definitions in two dimensions. These transformati

Write a note on mpeg-2, Question 1 Write a note on digitizers Quest...

Question 1 Write a note on digitizers Question 2 Discuss on line drawing algorithm Question 3 Explain 3D viewing Question 4 Explain different types of cohe

Explain vector graphics and raster graphics, Question: (a) In computer...

Question: (a) In computer graphics it is important to distinguish between the two approaches to graphical modeling:vector graphics and raster graphics. Explain in details th

Modify the dda algorithm for negative sloped lines, 1. Modify the DDA algo...

1. Modify the DDA algorithm for negative sloped lines; discuss both the cases i.e., slope > 1 and 0   Ans. For the generation of lines along with negative slopes as:

2-d viewing and clipping - raster graphics and clipping, 2-D Viewing and C...

2-D Viewing and Clipping - Raster Graphics and  Clipping In the previous two units of this block, we illustrated the basic elements of computer graphics, that is, the hardware

Utility purpose of display processor in the graphic system, Explain the uti...

Explain the utility and purpose of display processor in the graphic system.  The purpose of the display processor is to free the CPU from the graphics chores. A major task of the d

Removing polygons hidden through a surrounding polygon, Removing Polygons H...

Removing Polygons Hidden through a Surrounding Polygon: The key to capable visibility calculation lies actually a polygon is not visible whether it is in back of a surrounding

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