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Disc

Variations that use polar coordinates and swap the ρ and θ values. This converts wedges centered at the origin to half-rings and vice versa.

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disc

Swap polar coordinates ρ and θ.

Type: 2D
Author: Ronald Hordijk
Date: Sep 2003

disc1

Disc variation information at the JWildfire Sanctuary
Disc Spiral Tutorial
Disc-Julian tutorial
Flipped Disc tutorial
Spherical-Disc tutorial
Disc Tutorial 1
Hole/Disc Technique video tutorial
Apophysis Base Forms pack
Modified Flipped Disc Apophsis script
Linear Disc Apophysis script

disc2

Swap polar coordinates ρ and θ, but using Manhattan distance instead of Euclidean.

Type: 2D
Author: Antonio Intrieri (gygrazok)
Date: 9 Feb 2007

It actually doesn’t quite use the Manhattan distance. It uses x+y; the Manhattan distance is |x|+|y|.

ParameterDescription
rotScales the input (which rotates the result)
twistSeparates the left and right halves

disc3

Swap polar coordinates ρ and θ, with parameters.

Type: 2D
Author: Brad Stefanov (snicker02)
Date: 28 Jul 2018

ParameterDescription
a-h 

JWildfire forum post on disc3

disc3d

Swap 2D polar coordinates ρ and θ and transforms z according to the distance from the origin.

Type: 3D
Author: Keeps Spencer (gossamer-light)
Date: 10 Dec 2007

ParameterDescription
piScale factor for ρ and θ; 𝜋 is the value used for disc, but disc3d allows it to be changed.

edisc

Swap elliptic coordinates μ and ν.

Type: 2D
Author: Joel and Michael Faber
Date: 21 Oct 2007

Apophysis plugin
eTech tutorial
eTech Apophysis scripts
Apophysis Base Forms pack

fdisc

Swap polar coordinates ρ and θ, first taking the reciprocal of ρ; scales by 2𝜋 instead of 𝜋.

Type: 2D
Author: Michael Faber
Date: 14 Jul 2009

Gregg Helt (CozyG) added some parameters to fdisc when he ported it to JWildfire.

ParameterDescription
ashiftShift amount for θ
rshiftShift amount for ρ
xshiftPhase shift for x
yshiftPhase shift for y
term1-term4Weights for four different terms producing the result; term1 is normal fdisc and term4 is linear

idisc

Swap polar coordinates ρ and θ, first taking the reciprocal of ρ.

Type: 2D
Author: Michael Faber
Date: 17 Sep 2011

Taking the reciprocal is intended to prevent the overlap often seen with disc. See wdisc.

Apophysis plugin

pre_disc

Swap polar coordinates ρ and θ.

Type: 2D
Author: Keeps Spencer (gossamer-light)
Date: 10 Dec 2007

A pre_ version of disc.

pre_disc3d

Swap 2D polar coordinates ρ and θ and transforms z according to the distance from the origin.

Type: 3D
Author: Keeps Spencer (gossamer-light)
Date: 10 Dec 2007

A pre_ version of disc3d.

ParameterDescription
piScale factor for ρ and θ; 𝜋 is the value used for disc, but disc3d allows it to be changed.

wdisc

Swap polar coordinates ρ and θ, first taking the reciprocal of ρ, afterwards flipping the bottom half.

Type: 2D
Author: Michael Faber
Date: 17 Sep 2011

Taking the reciprocal is intended to prevent the overlap often seen with disc. See idisc.

Apophysis plugin



This information has all been created by Rick Sidwell as a guide to the more popular variations used in fractal flames, and very generously allowed me to reproduce it here. Not all of the variations are included with JWildfire, but a great many are, so it is worthwhile learning about them.
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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