Sterling (program)

Fractal-generating computer program

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Sterling2

sin(z) log(z) − tan(z))/(z2 cos(z) − 2z) * c

Stable release|

v1.7 / September 2008; 16 years ago (2008-09)

Written in| C
Operating system| Microsoft Windows
Type| Fractal-generating software
License| GPLv3
Website| soler7.com/Fractals/Sterling2.html

Sterling is a fractal-generating computer program written in the C programming language in 1999 for Microsoft Windows by Stephen C. Ferguson. Sterling is now freeware while Sterling2 is a freeware version of Sterling with different algorithms. It was released in September 2008 by Tad Boniecki. Apart from the name (which shows as sterlingwar2 in the title bar and on the About screen), the program looks just like the original Sterling. The only internals that are different are the 50 formulae for fractal generation. Parameter files made by Sterling can be used in Sterling2 and vice versa, though they will draw different images.

Sterling is based on the notion that one way to generate interesting fractal images is by using elaborate color filters and shading. In many images, the main interest lies in the filters rather than the actual fractal boundaries themselves, as in traditional fractal-generating programs. The fractal merely serves as a seeding function to the coloring algorithms and filters. A feature of Sterling is the richness of the renders.

Sterling has a simple GUI interface with a limited number of functions. The program saves files as JPEG, BMP or one of six other formats. It draws in Julia mode, allows inside-out rendering and does anti-aliasing. It offers 32 different renders and four transform effects. There are three independent color controls and two ways to zoom into an image.

The Sterling2 ZIP file (436 KB) contains brief instructions. There is no installation -- it is enough to put the executable and dynamic-link library files in the same directory and start the exe file.

In 2018, the original code for sterling was released under the GPLv3.[1]

## Sample images

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*   *   *   *   *   *

## References

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## External links

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* Sterling2 (freeware) home page [2]: including download, instructions and sample images.

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Fractal software

* Digital art
* Graphics software
* Fractal art

Open-source|

* Apophysis
* Blender
* Fractint
* Fyre
* Kalles Fraktaler
* MilkDrop
* Sterling

GNU|

* Electric Sheep
* GIMP
* openPlaG
* XaoS

Freeware|

* IFStile

Retail|

| Cross-platform|

* Bryce
* Maple
* Ultra Fractal
* Wolfram Mathematica

|

Windows only|

* VisSim

Scenery generator|

* MojoWorld Generator
* Picogen
* Terragen
* VistaPro

Found objects|

* Burning Ship fractal
* Jerusalem cube
* Julia set
* Mandelbox
* Mandelbrot set
* Mandelbulb

Related|

* Computer-generated imagery
* Fractal compression
* Fractal landscape
* Fractal flame
* Iterated function system
* Mathematical visualization
* Orbit trap

* Category

* v
* t
* e

Fractals

Characteristics|

* Fractal dimensions
* Assouad
* Box-counting
* Higuchi
* Correlation
* Hausdorff
* Packing
* Topological
* Recursion
* Self-similarity

Iterated function
system|

* Barnsley fern
* Cantor set
* Koch snowflake
* Menger sponge
* Sierpiński carpet
* Sierpiński triangle
* Apollonian gasket
* Fibonacci word
* Space-filling curve
* Blancmange curve
* De Rham curve
* Minkowski
* Dragon curve
* Hilbert curve
* Koch curve
* Lévy C curve
* Moore curve
* Peano curve
* Sierpiński curve
* Z-order curve
* String
* T-square
* n-flake
* Vicsek fractal
* Gosper curve
* Pythagoras tree
* Weierstrass function

Strange attractor|

* Multifractal system

L-system|

* Fractal canopy
* Space-filling curve
* H tree

Escape-time
fractals|

* Burning Ship fractal
* Julia set
* Filled
* Newton fractal
* Douady rabbit
* Lyapunov fractal
* Mandelbrot set
* Misiurewicz point
* Multibrot set
* Newton fractal
* Tricorn
* Mandelbox
* Mandelbulb

Rendering techniques|

* Buddhabrot
* Orbit trap
* Pickover stalk

Random fractals|

* Brownian motion
* Brownian tree
* Brownian motor
* Fractal landscape
* Lévy flight
* Percolation theory
* Self-avoiding walk

People|

* Michael Barnsley
* Georg Cantor
* Bill Gosper
* Felix Hausdorff
* Desmond Paul Henry
* Gaston Julia
* Niels Fabian Helge von Koch
* Paul Lévy
* Aleksandr Lyapunov
* Benoit Mandelbrot
* Hamid Naderi Yeganeh
* Lewis Fry Richardson
* Wacław Sierpiński

Other|

* Coastline paradox
* Fractal art
* List of fractals by Hausdorff dimension
* The Fractal Geometry of Nature (1982 book)
* The Beauty of Fractals (1986 book)
* Chaos: Making a New Science (1987 book)
* Kaleidoscope
* Chaos theory

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Mathematics and art

Concepts|

* Algorithm
* Catenary
* Fractal
* Golden ratio
* Hyperboloid structure
* Minimal surface
* Paraboloid
* Perspective
* Camera lucida
* Camera obscura
* Plastic ratio
* Projective geometry
* Proportion
* Architecture
* Human
* Symmetry
* Tessellation
* Wallpaper group

Forms|

* Algorithmic art
* Anamorphic art
* Architecture
* Geodesic dome
* Pyramid
* Vastu shastra
* Computer art
* Fiber arts
* 4D art
* Fractal art
* Islamic geometric patterns
* Girih
* Jali
* Muqarnas
* Zellij
* Knotting
* Celtic knot
* Croatian interlace
* Interlace
* Music
* Origami
* Mathematics
* Sculpture
* String art
* String figure
* Tiling

Artworks|

* List of works designed with the golden ratio
* Continuum
* Mathemalchemy
* Mathematica: A World of Numbers... and Beyond
* Octacube
* Pi
* Pi in the Sky

Buildings|

* Cathedral of Saint Mary of the Assumption
* Hagia Sophia
* Kresge Auditorium
* Pantheon
* Parthenon
* Pyramid of Khufu
* Sagrada Família
* Sydney Opera House
* Taj Mahal

Artists|

| Renaissance|

* Paolo Uccello
* Piero della Francesca
* Leonardo da Vinci
* Vitruvian Man
* Albrecht Dürer
* Parmigianino
* Self-portrait in a Convex Mirror

|

19th–20th
Century|

* William Blake
* The Ancient of Days
* Newton
* Jean Metzinger
* Danseuse au café
* L'Oiseau bleu
* Giorgio de Chirico
* Man Ray
* M. C. Escher
* Circle Limit III
* Print Gallery
* Relativity
* Reptiles
* Waterfall
* René Magritte
* La condition humaine
* Salvador Dalí
* Crucifixion
* The Swallow's Tail
* Crockett Johnson

Contemporary|

* Max Bill
* Martin and Erik Demaine
* Scott Draves
* Jan Dibbets
* John Ernest
* Helaman Ferguson
* Peter Forakis
* Susan Goldstine
* Bathsheba Grossman
* George W. Hart
* Desmond Paul Henry
* Anthony Hill
* Charles Jencks
* Garden of Cosmic Speculation
* Andy Lomas
* Robert Longhurst
* Jeanette McLeod
* Hamid Naderi Yeganeh
* István Orosz
* Hinke Osinga
* Antoine Pevsner
* Tony Robbin
* Alba Rojo Cama
* Reza Sarhangi
* Oliver Sin
* Hiroshi Sugimoto
* Daina Taimiņa
* Roman Verostko
* Margaret Wertheim

Theorists|

| Ancient|

* Polykleitos
* Canon
* Vitruvius
* De architectura

|

Renaissance|

* Filippo Brunelleschi
* Leon Battista Alberti
* De pictura
* De re aedificatoria
* Piero della Francesca
* De prospectiva pingendi
* Luca Pacioli
* De divina proportione
* Leonardo da Vinci
* A Treatise on Painting
* Albrecht Dürer
* Vier Bücher von Menschlicher Proportion
* Sebastiano Serlio
* Regole generali d'architettura
* Andrea Palladio
* I quattro libri dell'architettura

Romantic|

* Samuel Colman
* Nature's Harmonic Unity
* Frederik Macody Lund
* Ad Quadratum
* Jay Hambidge
* The Greek Vase

Modern|

* Owen Jones
* The Grammar of Ornament
* Ernest Hanbury Hankin
* The Drawing of Geometric Patterns in Saracenic Art
* G. H. Hardy
* A Mathematician's Apology
* George David Birkhoff
* Aesthetic Measure
* Douglas Hofstadter
* Gödel, Escher, Bach
* Nikos Salingaros
* The 'Life' of a Carpet

Publications|

* Journal of Mathematics and the Arts
* Lumen Naturae
* Making Mathematics with Needlework
* Rhythm of Structure
* Viewpoints: Mathematical Perspective and Fractal Geometry in Art

Organizations|

* Ars Mathematica
* The Bridges Organization
* European Society for Mathematics and the Arts
* Goudreau Museum of Mathematics in Art and Science
* Institute For Figuring
* Mathemalchemy
* National Museum of Mathematics

Related|

* Droste effect
* Mathematical beauty
* Patterns in nature
* Sacred geometry

* Category

* v
* t
* e

Computer science

Note: This template roughly follows the 2012 ACM Computing Classification System.

Hardware|

* Printed circuit board
* Peripheral
* Integrated circuit
* Very-large-scale integration
* System on a chip (SoC)
* Energy consumption (green computing)
* Electronic design automation
* Hardware acceleration
* Processor
* Size / Form

Computer systems organization|

* Computer architecture
* Computational complexity
* Dependability
* Embedded system
* Real-time computing
* Cyber-physical system
* Fault tolerance
* Wireless sensor network

Networks|

* Network architecture
* Network protocol
* Network components
* Network scheduler
* Network performance evaluation
* Network service

Software organization|

* Interpreter
* Middleware
* Virtual machine
* Operating system
* Software quality

Software notations and tools|

* Programming paradigm
* Programming language
* Compiler
* Domain-specific language
* Modeling language
* Software framework
* Integrated development environment
* Software configuration management
* Software library
* Software repository

Software development|

* Control variable
* Software development process
* Requirements analysis
* Software design
* Software construction
* Software deployment
* Software engineering
* Software maintenance
* Programming team
* Open-source model

Theory of computation|

* Model of computation
* Stochastic
* Formal language
* Automata theory
* Computability theory
* Computational complexity theory
* Logic
* Semantics

Algorithms|

* Algorithm design
* Analysis of algorithms
* Algorithmic efficiency
* Randomized algorithm
* Computational geometry

Mathematics of computing|

* Discrete mathematics
* Probability
* Statistics
* Mathematical software
* Information theory
* Mathematical analysis
* Numerical analysis
* Theoretical computer science

Information systems|

* Database management system
* Information storage systems
* Enterprise information system
* Social information systems
* Geographic information system
* Decision support system
* Process control system
* Multimedia information system
* Data mining
* Digital library
* Computing platform
* Digital marketing
* World Wide Web
* Information retrieval

Security|

* Cryptography
* Formal methods
* Security hacker
* Security services
* Intrusion detection system
* Hardware security
* Network security
* Information security
* Application security

Human–centered computing|

* Interaction design
* Augmented reality
* Virtual reality
* Social computing
* Ubiquitous computing
* Visualization
* Accessibility
* Human–computer interaction
* Mobile computing

Concurrency|

* Concurrent computing
* Parallel computing
* Distributed computing
* Multithreading
* Multiprocessing

Artificial intelligence|

* Natural language processing
* Knowledge representation and reasoning
* Computer vision
* Automated planning and scheduling
* Search methodology
* Control method
* Philosophy of artificial intelligence
* Distributed artificial intelligence

Machine learning|

* Supervised learning
* Unsupervised learning
* Reinforcement learning
* Multi-task learning
* Cross-validation

Graphics|

* Animation
* Rendering
* Photograph manipulation
* Graphics processing unit
* Image compression
* Solid modeling

Applied computing|

* Quantum computing
* E-commerce
* Enterprise software
* Computational mathematics
* Computational physics
* Computational chemistry
* Computational biology
* Computational social science
* Computational engineering
* Differentiable computing
* Computational healthcare
* Digital art
* Electronic publishing
* Cyberwarfare
* Electronic voting
* Video games
* Word processing
* Operations research
* Educational technology
* Document management

* Category
* Outline
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