Radiosity was used for all diffuse illumination in this scene.

Radiosity methods were first developed in about 1950 in the engineering field of heat transfer.

Radiosity is a global illumination algorithm used in 3D computer graphics rendering.

Radiosity is an application of the finite element method to solving the rendering equation for scenes with purely diffuse surfaces.

One of the advantages of the Radiosity algorithm is that it is relatively simple to explain and implement.

* Radiosity Overview, from HyperGraph of SIGGRAPH ( provides full matrix radiosity algorithm and progressive radiosity algorithm )

Radiosity is a method which attempts to simulate the way in which directly illuminated surfaces act as indirect light sources that illuminate other surfaces.

Radiosity calculations are viewpoint independent which increases the computations involved, but makes them useful for all viewpoints.

Radiosity, ray tracing, beam tracing, cone tracing, path tracing, Metropolis light transport, ambient occlusion, photon mapping, and image based lighting are examples of algorithms used in global illumination, some of which may be used together to yield results that are not fast, but accurate.

Radiosity calculations are viewpoint independent which increases the computations involved, but makes them useful for all viewpoints.

: Radiosity, also known as Global Illumination, is a method that attempts to simulate the way in which directly illuminated surfaces act as indirect light sources that illuminate other surfaces.

" As a consequence, the term " global illumination " became confused with " diffuse interreflection ," and " Radiosity " became confused with " global illumination " in popular parlance.

Radiosity methods can be used to determine the diffuse lighting of the scene, however PRT offers a method to dynamically change the lighting environment.

* Radiosity, by Hugo Elias ( also provides a general overview of lighting algorithms, along with programming examples )

Calculation of Radiosity is complicated.

Radiosity and photon mapping are two commonly used methods.

It was, I felt, possible that they were men who, having received no tickets for that day, had remained in the hall, to sleep perhaps, in the corners farthest removed from the counter with its overhead light.

He had belonged to this land and, perhaps, had desecrated it -- and this was the only material symbol that remained of him.

My new Aunt was perhaps three or four years older than I and it had been a long time since I had seen as gorgeous a woman who oozed sex.

True, she was my Aunt, married to an Uncle related to me only by marriage, but why she had married a man twice her age, and more, perhaps, I did not know or much care.

it was perhaps 80 feet high and had been artfully constructed of logs.

For lawyers, reflecting perhaps their parochial preferences, there has been a special fascination since then in the role played by the Supreme Court in that transformation -- the manner in which its decisions altered in `` the switch in time that saved nine '', President Roosevelt's ill-starred but in effect victorious `` Court-packing plan '', the imprimatur of judicial approval that was finally placed upon social legislation.

Yet implicit in each movement was the death of millions, perhaps hundreds of millions, perhaps you and me -- and the experts.

Years ago this was true, but with the replacement of wires or runners by radio and radar ( and perhaps television ), these restrictions have disappeared and now again too much is heard.

They, perhaps, gave the pitch of their position in the preface where it was said that Eisenhower requested that the Commission be administered by the American Assembly of Columbia University, because it was non-partisan.

`` I hated the war '', he said, `` but thought I ought to go because I was, perhaps, one of those who hadn't done enough to prevent it ''.

Historical records indicate that Copernicus was unaware of the fundamental aspects of his so-called ' revolution ', unaware perhaps of its historical importance, he rested content with having produced a simpler scheme for prediction.

However, it was not of innocence in general that I was speaking, but of perhaps the frailest and surely the least important side of it which is innocence in romantic love.

Yours, but not mine, was an age in which innocence was fostered and carefully -- if not perhaps altogether innocently -- preserved.

From the outset, she must have realized that marriage with him was out of the question, and although she was displeased by the `` unwarrantable '' interference, it seems probable that she did agree with her mother's suggestion that the poet was `` perhaps '' a man `` most fitted to live & die solitary, & in the love only of the Highest Lover ''.

by now it was perhaps two days or longer after Papa had begun hemorrhaging.

perhaps he was a little more sympathetic to the sides of beef that hung silently from his hooks.

Adrian Quiney wrote to his son Richard on October 29 and again perhaps the next day, since the bearer of the letter, the bailiff, was expected to reach London on November 1.

What was perhaps more important than his concept of the nature of history and the historical method were those forces which shaped the direction of his thought.

I had always thought of that lovable man as many years older than myself, although he was perhaps only twenty years older, and he confirmed my feeling, along with the feeling of both my sons, that teachers of the classics are invariably endearing.

But her prettiness was what he had noticed first, and all the other things had come afterward: cruelty, meanness, self-will.

There was an artificial lake just out of sight in the first stand of trees, fed by a half dozen springs that popped out of the ground above the hillside orchard.

The first part of the road was steep, but it leveled off after the second bend and curled gradually into the valley.

No one was behind it, but in the rear wall of the office I noticed, for the first time, a door which had been left partially open.

The herd was watered and then thrown onto a broad grass flat which was to be the first night's bedground.

Once again, Tom Horn was the first and most likely suspect, and he was brought in for questioning immediately.

For Matilda, it was the first she had known in many a night.

Even the knowledge that she was losing another boy, as a mother always does when a marriage is made, did not prevent her from having the first carefree, dreamless sleep that she had known since they dropped down the canyon and into Bear Valley, way, way back there when they were crossing those other mountains.

Stevens was grunting over the last empty pocket when Russ abruptly rose and lunged toward Carmer's hat, which had tumbled half-a-dozen feet away when he first fell.

The Indian's arm whipped sidewise -- there was a flash of amber and froth, the crash of the bottle shattering against the side of the first car.

It was her first smile.

At first, I thought he was out of his head, talking wildly like this.

Hell, I gave him the first decent job he ever had, six, seven -- how many years ago was it, Rob ''??

Miss Langford ( her first name was Evelyn ) was an attractive girl.

School began in August, the hottest part of the year, and for the first few days Miss Langford was very lenient with the children, letting them play a lot and the new ones sort of get acquainted with one another.

It was just as well that the ignorant Dandy enjoyed himself to the hilt that first evening, for the room was to become his prison cell.

`` Bastards '', he would say, `` all I did was put a beat to that Vivaldi stuff, and the first chair clobbered me ''!!

In 1961 the first important legislative victory of the Kennedy Administration came when the principle of national responsibility for local economic distress won out over a `` state's-responsibility '' proposal -- provision was made for payment for unemployment relief by nation-wide taxation rather than by a levy only on those states afflicted with manpower surplus.

The first systematic thinking about this Pandora's box within Pandora's boxes was done four years ago by Fred Ikle, a frail, meek-mannered Swiss-born sociologist.

The smell at first was more surprising than unpleasant.

His collaboration with Washington, begun when he was the general's aide during the Revolution, was resumed when he entered the first Cabinet as Secretary of the Treasury.