Laser F/X On-line Newsletter - Special Reports
Urström at the 1999 Stockholm Water Festival
To produce a show for 30,000+ people per night in an area covering half a square kilometer takes a lot of equipment. Here is a rundown on the laser hardware and other equipment used to produce the Water Festival show.
The main beam laser system was a 10
watt whitelight laser, located atop a container on a moored barge floating
on the Opera side of the site, is powered by a Chroma 10 laser. The laser is
equipped with a Laser Animation scanning system with AA PCAOM.
Stereoscopic 3D graphics
The 3D stereoscopic laser
images are produced by two five watt white light Chroma 5 lasers - one
projecting the left eye and one projecting the right eye image. A complex
optical system is used to correctly polarise the images and a relay mirror
system allows the stereoscopic images to be projected onto the special
polarisation preserving screen on either the Opera House or the Royal
Palace. These projectors are equipped with Laser Animation scanning systems
and AA PCAOMs.
YAG beam projector
A 3 watt MicroYAG 532 nM laser is located in the "Fire tower" at the south east corner of the site. Equipped with a Laser Animation scanning system, this laser is used in conjunction with the Chroma 10 to project beam effects. This laser is controlled by the DSP located in the main control tower at the Royal Palace side of the site.
"Basket" YAG laser
A second 3 watt MicroYAG 532 nM laser
is mounted above the "basket" which flies on steel cables from the
top of the "fire tower" in the SE corner of the site to a large
steel navigation tower (dubbed the "white tower" due to it's
colour) located about 12 meters out in the water on the north side of the
site. This laser projects straight down onto the surface of the water and is
used as a special effect towards the beginning of the show and again at the
dramatic climax when a woman appears in a white costume suspended above the
water within a cone of green laser beams.
The facade of the Royal Palace is illuminated with giant image projections from 8 Pani BP 6 six Kw Projectors. These are controlled by a DMX interface from Dataon which is linked to a DSP to resolve time code from master control and provide code in the event of a cable failure.
There were 7 smoke machines located around the site, as well as chemical smoke canisters used from a boat to cover the massive area (see Smoke on the water page).
There were four massive PA systems located around the site. Each PA scaffold had multiple speaker arrays pointing in different directions to insure proper distribution of the sound for the laser show. Each array is powered by 25 kilowatts of QSC amplifiers per tower for a total of 100,000 watts of sound. The speakers, flown by chain hoists inside the scaffolding towers, were Apogee 3 X 3s. Yorkville TX8 and TX95s were ground mounted for the bass. The sound track is fed from the master control scaffold to the four towers via dual FM links with 'diversity' type receivers in each PA tower so that the audio will not be lost in case of problems.
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