reb
Class REB_TrapShapePickover

Object
  common:Generic
      common:TrapShape
          reb:REB_TrapShapePickover

class 
TrapShape:REB_TrapShapePickover

This shape uses the Pickover strange attractor

Ultra Fractal Source

Toggle UF Source Code Display

 class REB_TrapShapePickover(common.ulb:TrapShape) {
  ; This shape uses the Pickover strange attractor
  public:
    import "common.ulb"
 
 ; Constructor
    func REB_TrapShapePickover(Generic pparent)
      TrapShape.TrapShape(pparent)
    endfunc
    
   ; Call this for each iteration being trapped.
    float func Iterate(complex pz)
     TrapShape.Iterate(pz)
     int sgn = 1
     if @sgn
       sgn = -1
     endif
     float x = real(pz)*@s
      float y = imag(pz)*@s
      float ppz = @ppz
      float pxx = 0
      int att_iter = 0
 
      while att_iter < @max_att_iterations
        pxx = x
        x = real(@pfun1(y*@h1) - ppz*@pfun2(x*@h2))
        y = real(ppz*@pfun3(pxx*@h3) - @pfun4(y*@h4))
        ppz = real(@h5*@pfun5(pxx))
        att_iter = att_iter + 1
      endwhile
      m_LastZ = (x + sgn*flip(y)+ppz*@pw)
      float d = @distscale*|pz-(x + sgn*flip(y) + ppz*@pw)|
      return d
    endfunc
    
  default:
    title = "Pickover"
   int param v_trapshapepickover
     caption = "Version (Trap Shape Pickover)"
     default = 101
     hint = "This version parameter is used to detect when a change has been made to the formula that is incompatible with the previous version. When that happens, this field will reflect the old version number to alert you to the fact that an alternate rendering is being used."
     visible = @v_trapshapepickover < 101
   endparam
    
    float param ppz
      caption = "Initialize Height"
      default = 0
    endparam
    complex param pw
      caption = "Height weight"
      default = (0,0)
    endparam
    float param h1
      caption = "Pickover 1"
      default = 2.24
    endparam
    float param h2
      caption = "Pickover 2"
      default = 0.43
    endparam
    float param h3
      caption = "Pickover 3"
      default = -0.65
    endparam
    float param h4
      caption = "Pickover 4"
      default = -2.43
    endparam
    float param h5
      caption = "Pickover 5"
      default = 1
    endparam
    func pfun1
      caption = "Pickover Fn 1"
      default = sin()
    endfunc
    func pfun2
      caption = "Pickover Fn 2"
      default = cos()
    endfunc
    func pfun3
      caption = "Pickover Fn 3"
    endfunc
    func pfun4
      caption = "Pickover Fn 4"
      default = cos()
    endfunc
    func pfun5
      caption = "Pickover Fn 5"
      default = sin()
    endfunc
    float param distscale
      caption = "Distance scale"
      default = 2
    endparam
    float param s
      caption = "Attractor scale"
      default = 1
    endparam
    int param max_att_iterations
      caption = "Attractor iterations"
      default = 5
    endparam
    bool param sgn
      caption = "Conjugate transform"
      default = false
    endparam
  }
 

Constructor Summary

REB_TrapShapePickover()

REB_TrapShapePickover(Generic pparent)
Constructor

Method Summary

float

Iterate(complex pz) Call this for each iteration being trapped.

Methods inherited from class common:TrapShape

GetColorChannel, GetTextureValue, GetTransformedPoint, Init, IterateSilent, SetThreshold

Methods inherited from class common:Generic

GetParent

Methods inherited from class Object

Constructor Detail

REB_TrapShapePickover

public REB_TrapShapePickover(Generic pparent)

Constructor

REB_TrapShapePickover

public REB_TrapShapePickover()

Method Detail

Iterate

public float Iterate(complex pz)

Call this for each iteration being trapped.

Overrides:

Iterate in class TrapShape