Here are some simple facts about laser shows which you may not know about. It’s worth checking them out to make sure you are up to date.
Shapes and colour mixing
Any laser projected shape such as tunnel (circle), plane (line), text or even a cluster of 10 static laser beams is in fact projected with a single laser beam that is very quickly moving from position to position, while switching on and off and changing its colour.
All the colours except red, green and blue are created by mixing three basic RGB laser colours together in different ratios (case of standard RGB show lasers).
No haze, no lasers! Indoors anyway…
The laser light is visible only when it reflects off something. When all the atmospheric laser effects such as tunnels, planes and beams are performed, presence of artificial smoke or haze is absolutely essential for these laser effects to be visible.
During outdoor shows where haze or smoke can’t be guaranteed due to unpredictable wind conditions, high power laser light systems are used. These produce enough laser power to reflect off the dust and mist particles that are naturally present in the air and therefore making them visible.
Using high power lasers during snowfall and rain results in superb visual experience. On the other hand, in vacuum you would never see any laser even if it was super powerful.
Synchronisation with music and video
The synchronisation of laser effects to music and other media can be super-effective, but there’s one rule:
It must be absolutely spot on the beat.
It’s the same as with electronic music mixes - just a few milliseconds too early or late and it sounds so bad.
3D laser animations
Most of those cool 3D animations projected with show lasers are created in professional 3D modelling applications such as 3D studio Max or Cinema 4D. And because of that, such laser show displays require expertise in programming and can be quite pricey.
Many people are familiar with 3D video mapping which shows buildings falling down, being painted over with colours and split into many moving blocks.
But 3D laser mapping is somehow still pretty unusual. Both single colour and RGB lasers can be used to map the lines of objects or buildings and because of their luminosity the results can be quite amazing. However the best is to combine both methods - that will always result in something truly special.
Have you ever wondered how we do in air floating laser images?
This trick is pretty simple. When it’s dark and a thin gauze such as mosquito netting is hanged above or in front of you, your eyes are be unable to see it. If this gauze is then used as laser projection screen, whatever is displayed on it will appear to your brain as floating in the air, because your eyes are able to collect only the data of what they see the most. And due to the contrast difference between the gauze and the laser image, you see only the content of the laser projection.
If this content is 3D object (for example cube), you perceive it as 3D floating object although it is projected on planar projection surface.
Also water screens can be used if the show happens outdoors. Large scale water screen projections are costly but mind-blowing.
Best laser show
A well designed and deployed laser show can be breathtaking and very effective, but the best ones are those which combine multiple media together, such as sound, lasers, video projection, fireworks, SFXs and human performance. All in sensible and logical way of course.
Control system vs laser system
The quality of laser light system and laser control system goes hand in hand and they influence each other. So it doesn’t matter how good is your laser lighting system if the laser control is poor quality and vice versa.