// Escher Swirls, by Erlend Robaye, November 2001
// Ode to M.C. Escher, one of the greatest artist that ever roamed are small blue planet

Aspc=1,
A0="rnd(27)",		// Period of first sin
A1="rnd(35)",		// Period of second sin
A2="rnd(.05) + .01",	// Flow speed
A3="rnd(.05) + .01",	// Rotation speed

srcR="r     * ( 1 - sin( theta * A0) * sin( theta * A1) * A2 )",
srcT="theta -       sin( r     * A0) * sin( r      *A1) * A3 ",


Vers=100
