#!/usr/pkg/bin/bash
# XScreenSaver, Copyright © 2026 Jamie Zawinski <jwz@jwz.org>
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation.  No representations are made about the suitability of this
# software for any purpose.  It is provided "as is" without express or 
# implied warranty.

PATH="$PATH":"$(dirname "$0")"
exec -a "bubblecolors" \
xshadertoy "$@" \
 --program0 - \
<< "_XSCREENSAVER_EOF_"

// Title:  Bubble Colors
// Author: Matt Vianueva <diatribes@gmail.com>
// URL:    https://www.shadertoy.com/view/wcGXWR
// Date:   20-Jun-2025
// Desc:   Bubble Colors


	void mainImage(out vec4 o, vec2 u)
	{
	o = vec4(0,0,0,0);
	float i=0.,r=0.,s=0.,d=0.,n=0.,t=iTime;
	vec3  p = iResolution;
	u = (u-p.xy/2.)/p.y;
	for (o*=i;i++<9e1;
	d += s = .005 + abs(r)*.2,
	o += (1.+cos(.1*p.z+vec4(3,1,0,0))) / s)
	for(p = vec3(u * d, d + t*16.),
	r = 50.-abs(p.y)+ cos(t - dot(u,u) * 6.)*3.3,
	n = .08;
	n < .8;
	n *= 1.4)
	r -= abs(dot(sin(.3*t+.8*p*n), .7 +p-p )) / n;
	o = tanh(o / 2e3);
	}

_XSCREENSAVER_EOF_
