// G-Force DeltaField
// Name: HAL_Peacock_Eye
// Created by: Howard A. Landman, 31 August 2001
// e-mail: howard@polyamory.org
// homepage: http://www.polyamory.org/~howard/

Aspc=0,

A0="0.50 + rnd(0.06) + rnd(0.06) + rnd(0.05)",  // larger => more chaotic,
A1="0.97+rnd(0.01)+rnd(0.01)+rnd(0.01)",
A2="2*PI",

//srcT="a0*(PI - 2*abs(theta))",        // the Tent Map
// This formula appeared during a frustrating attempt
// to rotate the tent map by PI/2.  It wasn't quite
// what I intended, but it was too pretty to throw away.  

srcT="a0*((PI-2*abs(a2*(wrap((theta+(PI/2))/a2)-0.5))))",
srcR="a1*r",

Vers=200