THE LEXICON

Understanding LiquidFidelity's Visual Language

The Airplane Metaphor

The Source content (camera feed, video content, feedback loop) such as what is being projected onto stage is the aerodynamic mechanism of the airplane e.g. wings, fin, design. All the while the instruments in the cockpit of the plane that allows it to fly are the tactile devices (video mixers, video synths, cameras) used by the artist to direct the plane's movement through the sky.

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WINGS

What You See Projected

  • Liquid light flowing through glass
  • Video feedback loops
  • Camera feeds from the stage
  • Film reels and analog content
  • The aerodynamic mechanism of the experience
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INSTRUMENTS

How I Control It

  • Video mixers and synthesizers
  • Overhead projectors
  • Cameras and feedback systems
  • Tactile hardware controls
  • The cockpit of creation

Complete Glossary

A comprehensive guide to the terminology, techniques, and tools of analog liquid light performance.

Liquid Light

Analog mixture of oil, water, and alcohol manipulated inside of convex bowls designed to create movement for the oils. Typically, an artist will dye the oil and the alcohol/water separate colors to create a multicolored style.

Core Technique Analog

Liquid Light Show

The live projection of an organic liquid mixture that moves inside bowls manipulated by an artist.

Performance Live

Analog Visual Performance

An experience of a visual artist who is manually producing by hand and "from scratch" all of the visual elements of a show.

Performance Analog

Hybrid Visual Performance

An experience of a visual artist who is manually producing the visual effects from scratch and by hand but utilizing modern digital equipment.

Performance Hybrid

Synesthetic Visuals

Digitally rendered visuals made kinetically on equipment that have been circuit bent or simply designed by another to produce a modulation of a source image.

Digital Modulation

Music-to-Visual Translation

Synesthesia in a nutshell.

Concept Synesthesia

Improvisation

Feeling something from within your soul and expressing it without thinking but intuitively.

Performance Creative Process

Spontaneity

Sudden and without forethought.

Creative Process

Feedback Loops

Feedback loops philosophically speaking is anything that thinks about itself or emulates itself infinitely. This causes a repeating of the thing over and over again into space and time. Example: take two mirrors and face them toward each other and then put your hand between the mirrors and look into one of the mirrors to view your hand going into space infinitely. The hand is the source material and the mirrors are creating the feedback loop.

Concept Feedback

Video Feedback

When you take a source signal (input) and feed it back into itself (output). This input to output creates an infinite manifestation of the source image. Example: take a camera as applied for the input of source imagery and plug it directly into a TV as the display of output source. Now direct the camera to point directly at the screen and you will see a repeating pattern of the internal feedback loop it creates. This can be modulated into millions of ways depending on angle, distance, color, lighting, interference, and effects you adjust to the feedback loop.

Technique Feedback

Internal Feedback

Lots of video mixers have an input and output signal based on their time based corrector and internal settings that can be modulated with a feedback chain. To do this you just plug one end of a cable into the input jack and the other end of cable is plugged into the output jack. Click the channel for output to the channel you plugged the input into. Voila, you have yourself a feedback signal you can add effects to now!

Technique Hardware

Foreground / Background Separation

Foreground images are typically whatever shapes are moving about in the image and the background is some static image with various colors or lack thereof to key out for another image on a different channel.

Composition Technique

Surface Tension

Scientific term in chemistry where the atoms in a substance have a specific arrangement where they vibrate and when you introduce a disturbance to those atoms in the substance through an external force whether it is chemical or through energy (movement) you break this surface tension to change the balance of those atoms that vibrate within the substance. At rest it creates a new pattern of outlier form.

Science Physics

Surface Manipulation

Breaking the surface tension of liquid for example by introducing a new liquid of different compounds or chemical makeup or by blowing on the liquid or shaking the container it sits inside of.

Technique Manipulation

Raking the Surface

Raking the surface reminds me of suminagashi or marbling art where someone uses little combs or whatever they want to change the flow of the ink that sits over the surfactant liquid.

Technique Manipulation

Airflow Manipulation

Introducing air through pumps or by mouth to a liquid substance to change its shape or its flow.

Technique Manipulation

Substrate

Foundation or the under-current.

Concept

Translucency

Clear, see through.

Property

Opacity

The density/saturation of an image.

Property

Light-Under-Glass Techniques

Color is seen better through light, therefore glass holding dyes and some other contents helps the viewer see the hue of the color and if projected can also assist with magnifying the image to a larger scale.

Technique Projection

Black / White Keying

Keying means you are bringing forth a different selected channel in a video mixer to the colors in an image you want to clear out. Hence you are "keying" it into the original image. When we key out black it means it takes out all the darkest hues in a source image and replaces those regions with the other channels source imagery. This applied to the lightest hues as well for white keying. This is known universally as "Luma keying" in video.

Technique Keying

Chroma Keying

Chroma means colors you assign. Chroma keying follows the same line of thought for luma keying except you key out the colors you assign to it such as Green/purple for example. It's more specific to color sets.

Technique Keying

Negative Space

White or black empty space in an image, think of a background in an image.

Composition

Positive Space

The foreground, this is the subject of the image really.

Composition

Oil (Types, Behavior, Failure Modes)

Oil that are best used for liquid lightshow is mineral oil (paraffin) or baby oil: higher viscosity = thicker and more difficult to emulsify with alcohol | lower viscosity = lighter and easier to emulsify with alcohol.

Materials Liquid

Alcohol (Types, Dilution, Evaporation)

Isopropyl alcohol: 70% best used for squish plates, 91% best used for heatslides or for thicker oil. Dilute alcohol whenever necessary to invoke less suction and therefore more easy flow of movement.

Materials Liquid

Dyes / Pigments

Oil dyes for the oil, water color dye for the alcohol and water (they usually just mix together) best dyes are light fast!

Materials Color

Color Mixing in Liquid Media

Use color theory, light colors in contrast with dark hues; example is yellow with red or purple with lime green.

Technique Color

Viscosity

Density of an oil.

Property Science

Density

Atoms are arranged tighter together and not moving as fast.

Property Science

Temperature Effects

Temperature effects everything in a lightshow. Hot temps can make your hardware crash or your liquids move faster. Cold temperatures can create more density making oil for example stick to the bottom of your plates.

Physics Environmental

Chemical Interaction

This is really how you produce a desirable effect out of any analog lightshow. Chemical reactions = movement.

Science Core

Controlled Chaos

Improvisational experimental yet conducted and directed. Look up "strange attractors" and you'll find a new rabbit hole to fall into.

Philosophy Performance

Tools & Equipment

The physical instruments and apparatus used to create liquid light performances

Dishes / Glass Plates

Candy dishes or design plates can be interesting to look at when projected and manipulated with movement and out of focus slightly.

Equipment Glass

Petri Dishes

Great to use for flat squish plates, or blow plates, or explosion plates.

Equipment Glass

Clock Glass Plates

Used specifically to create a liquid seal where you direct the vacuum of liquids to move in a specific way that interprets the music. You pulse the liquids by lifting and pushing down on the liquids with the top glass plate. You can spin the whole dish over the stage of your projector to make the whole 2D image spin around in circles. These are used for the "classic" liquid lightshow pioneered by Glenn Mckay, Joshua White, and most of all Bill Ham. Clock face glass is sourced off of old clocks from thrift stores or antique shops. Best to find a pair of clock glass that creates a nice balanced seal. Usually the top plate is smaller than your base plate so you can fit plenty of liquids inside the base plate.

Equipment Classic Essential

Squish/Squash Plate

This is the classic style of a liquid lightshow using two clock face glass bowls or plates that fit inside each other. The base plate holds all the liquids and the top plate squishes that liquid to the base plate and creates the seal. This seal allows you to move the oils around in different shapes and sizes. Every time you move the liquid around you are breaking the surface tension of the chemical make up of the liquid mixture. Every time you drop a new additive into the mixture you are changing its chemical composition.

Technique Classic Core

Depth of Container

Shallow depth typically so it's easy to manipulate.

Technical

Layer Stacking

Squish plate glass usually goes up to three plates for a color combination of 6 hues.

Technique Color

Hand Tools

A/C powered fans, tubes for blowing air by mouth, paper towels or rags for cleaning off liquids, miniature glass wiper.

Equipment Tools

Custom-Built Tools

Splodascope, drop tank.

Equipment Custom

Splodascope

A slim liquid filled tank that connects to an air pump allowing airflow to pass through the bottom and create a multi-colored liquid effect for capturing or projecting.

Equipment Custom

Heatslide

Glass slides that contain a seal of liquid dyes such as water color or oil dye that are then placed in front of a hot lamp illuminating the image. These liquids will then boil from the heat at a gradual pace and create a colorful effect that is sporadic and interesting.

Equipment Heat

Oil Wheel

Oil wheels are glass disks encasing liquids such as colored oils and alcohols that are also heated up with an internal lamp of a projector and move similar to a lava lamp as it moves at ½ rpm mounted to a motor rotator. The effect is slow moving liquids that slowly spin with the motion of the motor.

Equipment Classic

Camera Capture

Is all about how to adjust the ISO settings, the angle at which you are capturing liquid light from, the distance at which it captures from, the ambient lighting is important, a light source for the liquids is also important. These all play a fact in getting the image right.

Technique Documentation

Blow Plate

When you clear oil (baby oil or mineral oil) into a bed of water the oil floats on top and then you dye the oil with different colors and move those pigments around by blowing on the surface of the water with a straw or hose. You can get a marbling look out of it that is quite unique and pretty.

Technique Manipulation

Glycerin Explosion

A chemical reaction that is awe inspiring when alcohol ink makes contact with glycerin or mineral oil. It creates an expansion and then a contraction effect that reminds me a lot of explosions.

Technique Chemical

Squish Plate Ingredients

Mineral oil, 70% isopropyl alcohol, water. Start by adding the isopropyl alcohol, then pour in the mineral oil, and then add a little bit of water last. Dye the water with water color and then lastly dye the oil OR put more water and isopropyl on the top plate and dye that with a different water color. Then emulsify your mixture with movement of slow pulses.

Recipe Essential

Drop Tank Technique

Place the slim water tank filled with distilled water in front of the gate of the slide projector or the optikinetics solar 250 projector and then drop water dye into the top of the tank and watch as the dye slowly drops through the tank and branches out into mushroom-like shapes. The image is then projected upside down because of the projectors optics so these shapes rise up from the bottom on the projection.

Technique Projection

Evaporation Plate

This is a technique you conduct when you have a petri dish filled with dark oil and you need to expose light through so you take a spray bottle and spritz onto the oil 91% alcohol which causes the oil to open up in fractures and expose the water/iso mixture underneath. If you dye the water this can produce a cool look.

Technique Chemical

Camera Positioning

Straight above down into the middle of the plate and zoomed in to capture all of the liquids in frame without glare and without anything else in the shot.

Technique Documentation

Macro vs Wide

Macro is for going into the liquids really deeply and wide is just capturing more out of the scene. Wide angle lens is probably better used for capturing the stage performers live.

Technique Documentation

Video Technology

The electronic systems and signal processing methods that power hybrid visual performance

Video Signal Flow

This signal flow can start from several sources and flow into the brain of the video switcher through its channels where it will then flow outward to the output device (tv or projector) its important that the signal chain reminds trackable and organized or things can get confusing for the artist.

Technical Video

Video Mixer/Switcher

Originally used in broadcast news and for concert halls. A visual artist uses them to live mix any video source in real time and add effects to the video to create a modulation of the output hence advancing the style of the visual aesthetic.

Hardware Essential

Video Synthesizers

Video synths are simply generating visuals through raspberry pi computer chips and potentiometers that allow the artist to shape and form the image in real time using the instruments of the synthesizer. The feedback synths I have just take a video signal and they create an internal feedback loop in the device of the image to luma key in.

Hardware Synthesizer

Glitch Aesthetics

Cyberpunk, sharp edges and glitchy textures on the contours of the image.

Aesthetic Digital

Analog Artifacts

Graininess and film pops are always really interesting to look at in old film footage and I love using that aesthetic for certain music atmospheres that are more harmonic and jazzy.

Aesthetic Analog

Circuit Bending

This is just a savvy way to manipulate video signals by short-circuiting the motherboards of video or music devices to create glitch effects.

Technique Hardware

Stage Feedback

Aiming a camera at the stage where the projection is landing and capturing the performers and routing that as input in a video mixer.

Technique Feedback

Composite Video

Any video through an RCA or AV cable usually at 480/576i.

Technical Video

S-Video

Reduces artifacts from low resolution video and provides higher level quality above RCA that allows the image to send brightness and color on two separate wires that gives it a more sharp clarity.

Technical Video

HDMI Conversion

You convert to hdmi through your RCA to HD converters. They usually can take an RCA input to HDMI output (upscaling).

Technical Video

Upscaling

This is when you take a lower resolution image and amplify it to a higher resolution format. This doesn't mean that the image will look higher quality though it just means it moved up in the resolution formatting.

Technical Video

480p

Lowest resolution compatible with RCA or S-Video; usually people glitch images through circuit bent devices in this format. It makes the most sense this way.

Technical Resolution

720p

Higher formatting video close to full HD but not quite. 720P mean the resolution is 720 pixels in length and a progressive scan.

Technical Resolution

1080p

1080 pixels in length, higher quality, image clarity and sharpest. Progressive scan. The standard for modern video content.

Technical Resolution

1080i

1080 pixels in length, higher quality, image clarity and sharpest. With interlaced scanning, lines of visual information are alternated as odds and evens. Only half of a frame's visual information is broadcast at a time i.e., the even lines will be displayed on a viewer's screen, then the odd lines will be displayed; not simultaneously.

Technical Resolution

Latency

The delay in signal from a source when it passed through the data transmission vessels to the output.

Technical Video

Deinterlacing

Transforming the interlaced video into a progressive video signal by merging the odd and even lines inside the frame to produce a smoother image that removes the flickering or combing artifacts from the interlaced video.

Technical Video

Performance & Philosophy

The creative principles, practical considerations, and artistic mindset behind live liquid light performance

Hands-On Control vs Automation

Hands on control can provide a more in sequence and in tempo movement of visuals versus having an automated image sort of match the tone or atmosphere that the music is creating.

Philosophy Performance

Physical Interaction with Image

Putting my hands or an fx filter lens in front of my MiniDV camera to play with the feedback coming from it when pointed at the projection/tv.

Technique Performance

Human Error as Feature

Human error can often stimulate the most interesting and fun outcomes in a visual show because it introduces that there is in fact a person running this show and not a computer program like many assume.

Philosophy Performance

Emotions with Image

Emotions are all tied into it. The evocative nature of strong imagery can derive a reaction from an audience member or the creator. I have had the most emotional responses to images of nature with my visuals because I am in love with our planet and nature reminds me of God.

Philosophy Emotion

Projection Mapping

Designating the projection to shapes and sizes that meet the background it is emitting onto. Mapping means you can adjust the frame size of the image and event break it up into several pieces to meet many backgrounds.

Technique Projection

Projection Scale

Scaling the projection up or down means making it larger or smaller to match the wall or surface it lands on.

Technique Projection

Throw Distance

This is super important because the closer the distance the more bright and saturated the light will be but conversely if the surface the light is projecting onto is further away it loses its brightness and its saturation of color.

Technical Projection

Surface Selection

Always the most ideal to project onto a white wall or screen. Sometimes in model atmospheres I will project onto a black sheet or black velvet curtain to create a natural mask for the subject to capture all the light only on their body and focus the image on the surface of their skin.

Technique Projection

Environmental Constraints

As I have learned it is never ideal to project images during the day. You need low ambient lighting. You also want to be indoors and if outdoors, the conditions to be clear skies.

Practical Environmental

Live Performance Context

Live shows bring the most fun out of what I do because I get to honor the performers and the audience by showing them to a unique visual experience. I think people usually respond well to my show and want to see more from local music concerts other than just music. The opportunity to do a live performance also gives me a shot at experimenting in an improvisational way rather than having a plan going into it. It also brings about serendipity to see the way the music and the visuals will jive with the audience.

Performance Philosophy

Audience Interaction

The "look backs" are what I love to see; the moment an audience finds out I'm doing the visuals for the show and not a computer. They see something and go, "oh a guy is back there controlling all this!"

Performance Experience

Venue Limitations

When the venue is too small to accommodate my gear or it does not have a back wall that permits the visuals to be seen as clearly. The biggest drawback is always the lack of space for me in front and opposite of the stage to do my thing.

Practical Logistics

Space Requirements

I need at least 5 feet in length of space and at least 3 feet of depth to put my table and equipment down on the floor.

Practical Logistics

Documentation vs Ephemeral Art

Documenting it means trying my best to capture on camera the best bits of a video I transformed with the help of video mixer fx, feedback, keying and blending modes. The documenting is usually taken from a video capture card and into OBS studio or through a neat little upscaler I have that captures video through recording onto a usb drive. Another capture method is just filming with my phone or a 4k camera the projections I do and then editing them or not at all for the final cut! Ephemeral art occurs most often in a live performance setting or sometimes in the studio when I get an idea to sketch up something to see how it will look and it doesn't quite make the cut for a video capture moment.

Philosophy Documentation

What Makes the Cut vs. Not Making the Cut

The cut: lots of movement, lots of colors, a powerful emotional response to the content, the uniqueness of the look. Not making the cut: usually when I get the inner feeling that I could do better and let something just sit and morph for a while through camera angles, brightness adjustment, contrast adjusting, etc. Usually it doesn't make the cut if it is lacking a strong emotional response to the music I listen to. I want the visuals to pair with the music really well. It has to be pretty synched up or capture the tone of the music keenly.

Philosophy Curation