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PROJECTION FEEDBACK DIMENSION

The image that feeds on itself. The signal that loops into infinity.

Feedback Rate 60fps
Recursion Depth ∞
Decay 0.02
Entropy rising

Feedback Parameter Lab

Six parameters control the feedback loop engine. Adjust scale, rotation, decay, drift and hue shift to sculpt the infinite regression. Inject a SEED shape and watch it evolve through time.

Scale 1.003
Rotation 0.002
Decay 0.03
X Offset 0.0
Y Offset 0.0
Hue Shift 0.5°
Scale <1 = inward collapse  |  >1 = expanding zoom

CRT Archaeology

Six cathode ray tube eras — each with its characteristic phosphor, distortion, noise and decay. The same animated content filtered through decades of hardware evolution. Click any monitor to expand.

1950s Oscilloscope
1960s Studio Monitor
1970s Color TV
1980s Commodore
1990s Security Camera
2000s Consumer CRT
Phosphor Persistence: Different phosphors decay at different rates. P1 (green, oscilloscopes) had very long persistence — ghostly trails perfect for slow signal analysis. P4 (white, consumer TVs) decayed fast for crisp motion. P31 (green, computer monitors) balanced persistence for text legibility.

Signal Recursion Engine

A circular chain of 5 transformation nodes. Animated signal particles flow clockwise, each node reshaping the signal. The output loops back to the input — adjust feedback amount to explore stable, complex, and chaotic states.

Amplify 1.0x
Node Rot. 0.020
Hue Shift 1.0°
Threshold 0.30
Feedback % 40%
Particle Speed 1.0
Feedback and Chaos: At 0% feedback the signal is predictable and linear. Around 50% interesting complex patterns emerge — the system amplifies small differences without exploding. Near 100% the output feeds back so strongly that tiny perturbations cascade into full chaos. This is the butterfly effect in visual form — a microscopic change in input creates macroscopic divergence in output.

Glitch Archaeology Museum

Eight hardware failure modes that became visual languages. Procedurally animated in real-time. Click any artifact to expand. Each glitch has a historical origin and a lineage of artists who claimed it.

Bit Crush
Data Moshing
H-Hold Failure
Chroma Crawl
Capacitor Plague
Tape Dropout
VHS Tracking
Signal Noise

Recursive Geometry Explorer

Four methods of generating infinite complexity from simple recursive rules. Each iteration multiplies structure. Rendered in violet phosphor on near-black canvas.

Depth 7
Branch Angle 35°
Length Ratio 0.72
Recursive Tree: Each branch spawns two sub-branches at a fixed angle and length ratio. As depth increases, the number of branches grows as 2n. The boundary between tree and air becomes infinitely complex.

Audiovisual Recursion

A low-frequency oscillator drives visual feedback parameters. When resonance is enabled, the visual output modulates the oscillator frequency — creating a coupled system where sight and signal reinforce each other.

0.50 Hz
0.60
Resonance & Coupling: When the visual output feeds back into the oscillator frequency, the system becomes coupled. If the coupling strength is right, the two components lock into mutual reinforcement — a standing wave pattern where each cycle strengthens the next. This is resonance: the system amplifies itself at its natural frequency.

Artist Gallery & Timeline

Feedback loops and recursion as artistic medium — from the first video synthesizers to GPU-accelerated generative systems. A lineage of artists who made the malfunction meaningful.

1963
Nam June Paik — first video art with Billy Klüver. Feedback experiments with TV sets.
1965
Sony Portapak released — portable video enables independent video art worldwide.
1969
Steina & Woody Vasulka — video synthesis experiments, Anthology Film Archives, NYC.
1973
Paik-Abe Video Synthesizer — first dedicated hardware for video signal manipulation.
1976
Bill Viola — video as spiritual medium. Long-duration immersive installation work begins.
1983
IRCAM / Max — computer-based audio-visual integration precursors emerge in Paris.
1995
Generative art software emerges — Soddu, Edmonds, Sommerer. Algorithmic aesthetics.
2004
Processing by Casey Reas & Ben Fry — open-source visual coding for artists.
2012
GPU feedback loops in browser via WebGL — Shadertoy launches, real-time recursion accessible.
2024
AI-augmented feedback systems — neural networks as new recursion layer. Latent space loops.

Nam June Paik

Video Installation, Performance

TV Buddha (1974), Global Groove (1973), Magnet TV (1965). Paik saw television as the first truly democratic art medium. His feedback loops created images television was never designed to produce — the machine reflecting on itself.

Steina Vasulka

Video Synthesis, Machine Vision

Machine Vision (1978), Violin Power (1970-78), Summer Salt (1982). Steina gave the camera agency — letting machines scan, rotate, and decide what to see. The feedback between performer and video signal became a dialogue.

Bill Viola

Video Installation

The Passing (1991), Fire Woman (2005), Ocean Without a Shore (2007). Viola uses extreme slow motion and mirroring to stretch time into meditation. His feedback is temporal — the present moment looping through memory.

Ryoji Ikeda

Data, Sound, Light

test pattern (2008), data.matrix (2006), superposition (2012). Ikeda converts raw data into overwhelming visual/sonic experience. His recursive data scans reveal the hidden pattern-language beneath all information.

Rosa Menkman

Glitch Art Theory

The Glitch Moment/um (2011), A Vernacular of File Formats (2010), Beyond Resolution (2020). Menkman theorized glitch as a revelatory moment where a system's hidden assumptions become visible. The failure is the content.

Kim Asendorf

Pixel Sorting, Net Art

Pixel sorting algorithm (2010), Mountain tour (2011). Asendorf's pixel sorting tears images along luminance gradients — pixels freed from their grid, reorganized by pure value. Structure imposed by one recursive rule.

Cory Arcangel

Hacked Videogame Art

Super Mario Clouds (2002), I Shot Andy Warhol (2002), Beat the Champ (2015). Arcangel strips Nintendo cartridges to single looping elements — clouds, a rolling ball, one note. Maximum recursion by subtraction.

Memo Akten

Generative AI, Live Visuals

Learning to See (2017), Works of Love (2020), Superradiance (2022). Akten uses neural networks as recursive mirrors — training models on images that feed back into new model training. The algorithm meditates on its own output.


Glossary

22 terms from the vocabulary of feedback, recursion, and video synthesis.

Analog Synthesis
Creating sound or video signals through continuous voltage manipulation, as opposed to discrete digital samples. Naturally prone to drift, noise, and feedback.
Artifact
An unintended visual or auditory element introduced by hardware limitations, compression algorithms, or signal degradation. Often repurposed as aesthetic material.
Bit Depth
The number of bits used to represent each pixel's color. 1-bit = black/white only; 8-bit = 256 values per channel. Lower bit depth produces harsh banding and posterization.
Chaos Theory
The study of systems highly sensitive to initial conditions, where small changes produce wildly different outcomes. Feedback loops are chaotic systems; tiny perturbations cascade unpredictably.
CRT (Cathode Ray Tube)
Display technology using electron beams to excite phosphor coatings on a glass screen. Each phosphor has a characteristic glow persistence, color, and decay rate. Dominant 1940s-2000s.
Data Moshing
A technique exploiting video codec compression by removing I-frames (reference frames) so that motion vectors from one scene apply to another. Creates smearing, morphing glitch effects.
Decay Rate
In phosphor displays, the speed at which a pixel returns to darkness after excitation. Low decay = long persistence (ghostly trails). High decay = sharp, clean motion.
Entropy
A measure of disorder or randomness in a system. Closed feedback loops tend toward entropy — small errors accumulate until the signal degrades into noise. The second law of thermodynamics applies to video.
Feedback Loop
A system where the output is routed back to the input, influencing its own future state. Can be negative (stabilizing) or positive (amplifying). The source of complexity in natural and technological systems.
Fractal
A self-similar structure where the same pattern repeats at every scale. Generated by applying a simple rule recursively. The boundary of a fractal has infinite length in finite space.
Glitch Art
An aesthetic practice that intentionally exploits or celebrates hardware and software errors. Glitch art argues that malfunction reveals the hidden logic of a system more clearly than correct operation.
IFS (Iterated Function System)
A set of contraction mappings applied repeatedly to points in space. The Barnsley Fern uses 4 affine transformations applied probabilistically to generate a photorealistic fern from pure mathematics.
Interlacing
A technique for transmitting video by alternating between odd and even horizontal lines. At low frame rates, interlace artifacts (combing) appear at edges of moving objects — a signature of analog broadcast television.
Noise Floor
The level of background noise inherent in a signal chain. In analog video, the noise floor determines image quality. Artists like Steina Vasulka worked with the noise floor as compositional material.
Oscillator
A circuit or algorithm that generates a periodic signal. In synthesis: the fundamental building block of both audio and video signal generation. At low frequencies, oscillators create visual rhythm.
Phosphor
A chemical compound that emits light when struck by electrons. Different phosphors (P1, P4, P31, P39) emit different colors and have different persistence times. The glowing material of every CRT screen.
Pixel
Picture Element — the smallest addressable unit of a digital image. Originally a technical constraint, pixel aesthetics (lo-fi, 8-bit) became a deliberate artistic choice in the 1990s and beyond.
Recursion
A process defined in terms of itself. A function that calls itself, a shape that contains smaller copies of itself, a camera pointing at its own output. Self-reference is the engine of infinite complexity.
Signal
A time-varying quantity that carries information. In video: the voltage variations encoding brightness and color. In feedback systems, the signal is simultaneously the message, the medium, and the noise.
Scanline
A single horizontal line traced by an electron beam across a CRT screen. At 525 lines (NTSC) or 625 lines (PAL), the scanline structure defines the aesthetic of all analog television.
Video Synthesis
The generation of video signals from electronic circuits rather than a camera. Paik, Vasulka, and others built custom synthesizers to create pure electronic imagery — video not of the world but of electricity itself.
VHS
Video Home System — magnetic tape format dominant 1977-2005. Each copy generation introduced noise, tracking errors, and color degradation. Lo-fi VHS aesthetics index authenticity, nostalgia, and the beauty of impermanence.