Showing posts with label illusion of reality. Show all posts
Showing posts with label illusion of reality. Show all posts

Thursday, January 2, 2014

Pepper's Ghost and the Spirit Lodge at Expo 86


Once upon a time, a long time ago, I saw one of the best live / theatrical performances I have ever seen, which is the subject of this post. Like all great live performances, part of the impact that it has on you is that you are seeing something that will never be seen again. No matter how rehearsed, no matter how often they give the exact same performance, what you are seeing is live and those moments can never be recreated.

And what I saw was really well done. It was a story about the freedom of the people and of the tribe and about the love of a man for his family. The setting of the play is a native american lodge of some sort, at night, around a campfire.  Our narrator tells you the story his grandfather told him once, long ago.   We of course are not around a fire in native america, we are seeing this as part of a World's Fair and as part of the General Motors pavilion but, magically, it all still works.

I admit, it is hard to believe that what I saw was or could be as good as I remember it.  But as I have researched this post on the sometimes useful but always annoying Internet, I have come across other people who have a similar opinion about what they saw there in that pavilion.

Perhaps if one saw such events from time to time, then perhaps one could believe in the power of narrative, live theatre and the other theatrical arts to enrich our lives and maybe even improve the world.

But of course that is terribly naive and we know better today.

But in 1986 I was much younger and idealistic and made a last minute decision to attend the World's Fair (1) in Vancouver, Canada, Expo 86 (2), in the final week it was open. It was an impromptu trip and it was so long ago that I barely remember any of the practical details. I think a friend had rented a house so I had a couch to sleep on. I don't remember if I drove or flew to Canada, but somehow I remember having a car so maybe I flew and rented, it doesn't matter. But there I was at Expo 86 in its final week as they were basically wrapping up the park after a successful six month run.

If you have never been to a World's Fair before, as I had not,  it is a combination of theme park and international foreign affairs public relations and trade relations exposition. The park is filled with pavilions from various countries that want you to know about their history and what an attractive place it is to visit, to make investments in, or even perhaps to emigrate to. They will have a beautiful building that somehow represents their country, it is usually very open and large, so that you can walk in and get a passion fruit drink and watch films about diamond mining in S. Africa, or who knows what.

A world exposition is an opportunity for designers, architects, businesses and governments to show off how creative and positive they can be.  When things come together, these Fairs can have an impact for years or decades after their run.   In a few cases, such as Paris 1900,  they are recognized as important culturally for as long as a century or more.  So they spend a fair amount of money, which varies depending on how the world economy is doing and produce a result which serves many purposes, from the level of world government and business down to the individual and his or her family.

Expo 86 was "special format" heaven. Special format is the term we used to use in the world of theme parks to describe unusual film format and projection situations. The Hobbit at 48 fps is a modern example of what we used to call special format. At Expo 86 we had real Imax, stereo Imax, Showscan, Stereo Showscan, and on and on. These are all obsolete but esteemed film formats and terms-of-art from the days before digital projection. (5)

But everyone said that the "must see" pavilion was the General Motors exhibit, which had the odd name of "Spirit Lodge".

Spirit Lodge was very difficult to get in to see.  Apparently the theatre was quite small and could only handle a few people per show and maybe 4 shows an hour, so the show itself was short.   There were no reservations as I recall so you just had to get there early and wait in line.   So I did and thus was able to see Spirit Lodge in its first release and in its proper place.

You were in a small room that I think maybe held about 80 people arranged in a semi-circle around the stage. The stage was at the level of the lowest row of the audience, you shared the same space. Like good close-up magic, part of the appeal of what is about to happen comes from the fact you are so close and not more than a few feet away. There is only one performer, a single older man. No robots, no apparatus that you can see.   Just a small camp fire in the center of a dirt floor.   There were a few props around the stage to set the scene and to provide objects for dramatic shadows during the show.  There was nothing to keep you from walking the few feet from your chair to the center of the stage if that is what you wanted to do.

The lights go down and a man comes out. He is dressed in what I remember as a traditional native american outfit from someplace cold (e.g. like Canada).  He was there that night, he told us,  to tell us a story that his grandfather told him many years ago here in this lodge. It is clear from the context that he is addressing us as if we were his grandchildren.  He talked about his love for his grandfather who has been dead for many years now and he told the story of a magic canoe and how it took the men of the tribe wherever they wanted to go. The meaning of freedom, he said, was the freedom of the people to travel. Without the freedom to travel, whether in a magical canoe or otherwise, then there was no real freedom.

And as he spoke to you, live, right there, magically a few feet away, what appeared to be flames and smoke came out of the stage floor and hovered in the air. As he warmed his hands by this magical and impossible fire, images started to appear in the smoke to illustrate his story of his grandfather and the magic canoe from long ago that let the people go where they wanted. The images appeared to be there, live, in three dimensions, not projected in any way, but real.  He moved his hands above the fire and commanded his memories to appear and they did. They came and went in a dreamlike fashion. But it was right in front of you and a few feet away and it looked completely natural.

What I was seeing, of course, without realizing it, was Pepper's Ghost (3), that famous 17th century stage illusion which uses glass and half silvered mirrors to project a stage somewhere out of sight to the stage in front of the audience.   Using the magic of mirrors gives the perfect illusion of depth and substance like we only approximate with stereopsis. Somewhere in the back, or above me, was another stage that had some combination of film projection, perhaps projection on solid objects, perhaps projection on other transparent screens, and so forth.   Mirrors and glass were used to transmit the image to the center of that little stage with you not more than a few feet away from it.

How they managed to do this in a way that worked for all the different perspectives in the audience that day, and every day of its performance, is a mystery to me. Pepper's ghost is very tricky to execute and yet we had a lot of people sitting around the campfire. But it was perfect.

I have never seen Pepper's Ghost look so good.

I am not sure what this picture is, but it may be concept art associated with Spirit Lodge.

And of course, the context at the time, remember, is 1986 and the world is still divided by the Cold War and the Iron Curtain. And there are many nations where people are not allowed to travel outside their country for fear that they would defect to the West. So, Spirit Lodge, at this international exposition in the pavilion of General Motors was about the freedom to travel, in other words it was a subversive message, tastefully done. Very nice, and unusually well done for a company like General Motors, it seemed to me.  (4)  

It played for the length of the Exposition and, as is the nature of such things, disappeared.

I know that years later a version of Spirit Lodge opened at  Knott's Berry Farm. It may still be there for all I know. But I have never seen it there, and don't intend to, because I know it would only diminish it for me. Part of what made Spirit Lodge what it was, was when and where it was. In Vancouver, much closer to the reality of native america than Knott's could ever be. And it was performed then, during the Cold War, when the concept of transportation as a manifestation of freedom could have the subversive meaning that it had that day.

For more on Spirit Lodge see http://bobbea.com/expo-86/gm.html.

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Notes:

1. A world's fair or exhibition is an event that only happens a few times any generation and is controlled by an international body. In the history of America the 1938 and 1964 World's Fairs are particularly significant. Some believe that the 1964 Fair was the high point of our civilization in its purest most idealistic form. 

2. Expo '86 was held in Vancouver, Canada between May 2 and October 13, 1986.

4. Apparently General Motors is known for doing very nice pavilions at World's Fairs, although I do not know the details of this.  So this was not out of character at all and probably a good investment in their global identity.

5. Deleted paragraphs:

Expo 86 had fireworks every night. But in the final week, they did not just have a fireworks show, no, they had a fireworks show designed to use up their extra fireworks so it would all be gone when the last show was over. And they had a lot of fireworks. I mean hours of fireworks. All overwhelming and filling the sky. It went on and on and on. Fireworks need to be experienced and is not something you can store up and remember, unfortunately. But I have the memory of thinking that I will never see a fireworks show like this again.

There were dozens and dozens of pavilions representing countries from all over the world, and a very entertaining center "walkway" of the history of transportation that was many lifesize sculptures for kids to play on representing transportation through the ages, from horse drawn cart through jet airplane and submarines and space craft.

Saturday, April 6, 2013

Transmongolian Railroad and the Diorama Illusion


Two people have made a 4 minute "travelogue" of their 7,500 mile train trip from Beijing to Moscow using the video capability of one of the DSLRs.    A large part of this journey is on the Trans Siberian Railroad of course.

Few rail lines can compete historically with the Trans Siberian Railroad. (1) It was built starting in 1891 and started from both ends to meet in the middle. Started by the Czars and completed just before the Bolshevik Revolution, the railroad connects Petrograd (St. Petersburg, Leningrad) and Vladisvostok, the longest railroad in existence.   Of course, St Petersburg was the capital of Imperial Russia at the time and Vladivostok was their relatively ice free port on the Pacific Ocean.


You can start to see the diorama effect / illusion in this picture



The Trans Siberian Railroad is famous for opening up Siberia, for the role it played in the Russian Revolution and the Civil War, in World War 1 and World War 2.  If you saw the movie Reds (1981) with Warren Beatty, it features prominently in that.     When Moscow nearly fell to the Germans in the winter of 1941, it was the secret transfer of the armies of Siberia to Moscow in a triumph of logistics that stopped the Germans and threw them back in one of the great battles of history.


With John Reed on the Trans Siberian Railroad 

For those who are considering a trip on the Trans Siberian Railroad, here is a humorous link in something called "Wikitravel":
http://wikitravel.org/en/Trans-Siberian_Railway

A friend of mine who has been on this train says that by the end of trip you realize that train travel is not all that romantic if they do not clean out the latrine cars often enough.

At Chita, one can turn south and connect to a train that goes to Beijing.

Its 4 minutes long, its very interesting, and the music is great.






But what I find very interesting is that I keep seeing the so-called diorama illusion when I watch it.  The diorama illusion is the illusion that something that is life size when photographed a certain way looks as though it is a model.   The classic examples of these were Viewmaster photographs of something small.   It has to do with a shallow depth of field.




Here is a Wikipedia page on the topic:
http://en.wikipedia.org/wiki/Miniature_faking

In general the digital cameras have a more shallow depth of field because they are using lenses that have smaller focal lengths.  Why it is we associate the shallow depth of field with the illusion of a model I do not know.

An article about the film (use Google Chrome and it will translate it for you):

Wikipedia on the Trans Siberian Railway



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Notes:

1. Perhaps one of the very few that might compete with the Trans Siberian is the legendary Berlin -Baghdad Railway which played a role in WW1 and is no longer operational.





Sunday, March 3, 2013

Lets Be Realistic about Realism

[Please forgive the implied frustration of this post.  But you have no idea how tiring and irritating it is to have this discussion 30 years into this field.  By high end computer graphics we do not mean realistic or photo realistic in any way.  We are sorry you got that idea, but it is not what we meant, ever, so will you, whoever you are, please get over it.  It is irritating and demeaning.  Thank you]

My recent discussions about the failure of computer graphics to be useful to non-fiction fields, its utter failure to be used in Science, Finance, Architecture, and so forth, has brought up another worthy issue: the tyranny of the stupid belief (1) that high-end graphics and animation is about realism, and only about realism, and furthermore, that it is about what the badly educated think realism is.

I am holding back my real feelings here, so read between the lines.

I despise this tyranny of so-called realism or photorealism, I consider it the clear sign of mediocre minds and mediocre artists, of people who have been badly educated or completely uneducated in the arts. I hate having my creative potential limited by having to work with such people. Whenever I heard the desire for "photo realism" in my job as head of 3D at <company name deleted>, I wanted to throw down my pencil and walk out the door, as I knew I was working with people who did not have a (fucking) clue what they were about.

I was filled with self-hatred that frankly I had lowered myself again, to work with such swine. Again.

So is that clear, please, is it clear what I think about realism and the people who espouse it as the highest goal of anything?

Now you are welcome to believe what you want, you can believe that a movie about plastic toys is a work of art and is photorealistic if you want to, but do me a favor and do it far away from me. Because I am offended by your ignorance and your bad taste.

Sorry, just telling you what I believe.

But for those who are reading this blog, unless otherwise specified, "reality" per se is not a particularly desirable or required goal in imagery, unless we have some specific other goal in mind, which under certain circumstances we very well may have.  But then I will be specific in those circumstances what is desired here and why.  Oh yes, since many people reading this may not know what most of the words mean, good "visual effects" do not require "photorealism" in any sense of that word in any element. Good visual effects, to fool you into believing it is real, is completely different from requiring realism in computer graphics. I hope to explain why in this blog, although this should be completely obvious already.

So do not, repeat do not, ever believe that I am implying that computer graphics or any other form of imagery is naturally intended to be realistic.   Nothing could be further from the truth.  Do not limit my philosophy or discourse to your rather restricted views of reality, please.

No offense or anything, but that would be a very unrealistic thing of you to do.

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1. Of course by using the term "stupid belief" I am holding back my real feelings.  You should read between the lines to understand what it is that I really mean.


Sunday, January 6, 2013

The Shocking Truth about Roman Architecture in France

[Revised 1/7/2012]

This is the story of the first time I actually saw a Roman ruin. I think it is very funny for what it says about me, and maybe, just a little, about how some of us perceive various cultures and periods, perhaps without realizing it.

My high school had a fabulous Latin teacher (1) and I took advantage of the situation, taking many years of Latin and learning a lot of Roman history.   I may have been somewhat influenced by the fact that my high school combined the advanced Latin classes between the Boys and Girls school, so you had to go to the Girls school to study Latin.   Such were the lofty motivations of my youth.  I read Roman and Aegean history and related topics even now and I assure you the past isn't over, it isn't even past yet.

If you never studied Latin, to give you a feel for how nouns are declined and verbs conjugated, see this sequence from Life of Brian (1974) in which anti-Roman activist Brian is trying to write "Romans Go Home" and is corrected by a Roman Centurion.

http://www.youtube.com/watch?v=XbI-fDzUJXI

But, to my chagrin, I have never been to Rome. We were not of that economic class that could afford such things when I was growing up, and when I was productively employed as a young adult, I had not arranged a trip. Then I got involved in computer animation and of course my life went to hell and I still haven't been there, except of course in books.

But like so many others of my generation of computer animation, I was invited to speak at various European conferences during the late 1980s, which provided an opportunity to see at least some of Europe. So, after one of these conferences, Imagina, I arranged for a friend of mine to meet me in Monaco and we would sight see for a few days in the south of France.

So my friend, Paul Cross (2), met me at the conference and we rented a car and started driving through Nice on our way to Nimes. As we stopped in Nice, I pointed to a building and said, "Look, Paul, someone has built a building and made it look Roman."


I am still looking for a suitable picture.  This one has some of the right feel, but it is not integrated into a major current building on a busy street, like the building this post is about.


Paul looked at it and said, "No, Michael, it is Roman".

I thought that was a weird thing for him to say, so I repeated myself and tried to explain, see, someone has built a building and made it look really old and Roman. Isnt that nice?

In Los Angeles, you see, we regularly theme various venues based on classic European and other civilizations, including our own. We might have a Chinatown, for example. Disneyland would have a Fantasyland including a notable synthesis of many medieval castles at the center of the park. The little tourist town of Solvang in Southern California has a Danish theme, complete with windmills. Our Japanese restaurants such as Benihana entertain guests with a performance that is alledgedly at least somewhat Japanese in origin. Santa Barbara is zoned for a traditional Hispanic style.  Although most studio backlots have been repurposed as real estate development, a few still exist with their various themes: a New York street, an Old West street with its saloon, a small town America main street, and so forth. Theming is a major design concept in use in our local commercial architecture and culture.

So clearly, what we had here was a modern building that had been designed using Roman antiquity as a theme. I thought it looked good, although perhaps they went overboard on some of the "ancient" aspects of it, as the Roman section clearly had seen better days.   

My friend just kept explaining to me that no, they were not pretending to be Roman, that Nice was in part an ancient Roman city, and it actually was Roman.  That's interesting, I thought, it had never occurred to me that it might not be fake.

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1. His name was Anthony Ruffa, I think.   Before taking an exam, some of us would say to ourselves, "AVE RUFFA MORITURI TE SALUTANT"  ("Hail Ruffa!  We who are about to die, salute you!")

2. Paul Cross is a very amusing person, and an alumnus of Symbolics.  He moved to Taos, New Mexico and helped set up one of the internet not-for-profit web sites for the Taos Pueblo.   He has disappeared, and is hopefully doing well wherever he is.

Monday, November 19, 2012

Reality vs Visual Effects: The Case of the F-15 Over Afghanistan


I regularly stumble across pictures from the real world that look fake to me.   I believe that if this picture was used in a movie, that is if there was a scene that looked like this, people would complain about the bad and obviously fake visual effects.

Here is a picture of a fighter being refueled at night over Afghanistan.

Examine the picture (click on it to enlarge it) and then read my notes below.   These are the notes that I would give the technical director of the shot to help him or her understand what some of the problems are.


An F-15E Strike Eagle from the 391st Expeditionary Fighter Squadron at Bagram Airfield, Afghanistan, refuels Dec. 12 during a combat mission. (U.S. Air Force photo/Staff Sgt. Aaron Allmon)


1. The camera seems to be in an improbable position.  But it isn't, this is a camera on the refueling aircraft, completely normal.

2. The background (terrain) looks overly simple, it needs more detail.   That's how a lot of Afghanistan looks in winter at night.

3. The motion blur looks wrong.   But it isn't, the background is blurred because we are travelling fast over the ground, the airplane is not blurred because it has matched our speed.  The camera is at an oblique angle and the ground closer to the bottom of the picture is travelling "faster", e.g. more screen distance vertically, than the terrain in the upper part of the picture, hence the motion blur in the bottom of the picture is visibly more than the blur near the top, and this is correct.

4. You can see inside the cockpit.  That is correct, very high visibility these cockpits. And lots of illumination from the refueling boom.

5. The fighter itself is too low detail.  It looks like a model.   But it isn't.  F15s look like that from this point of view.  If you got up close you would see more detail, but it is deliberately supposed to be a sortof even grey from a distance (its a form of camouflage).

6. There appears to be a matte line around the front of the aircraft.   Yes there does appear to be a matte line, but it isn't.  It is the dark sky reflecting in the metal of the nose as it curves down.   It just looks like it has been outlined.

7. The lighting looks weird.   Its not your imagination, the lighting is weird.  We have a refueling boom with some sort of really bright (sodium?) light on it, a very bright moon illuminating everything with a blue-white light, reflections from the moon off the ground, illumination inside the fighter.  This is weird lighting.   That's just the way it is, or was, that night over Afghanistan.

In fact, it is a picture of a fighter at night over Afghanistan in winter being refueled.  It looks like that.   I think this is very amusing.

The original picture is at
http://www.strategypage.com/military_photos/military_photos_20121106215639.aspx