---

/*{
	"DESCRIPTION": "Your shader description",
	"CREDIT": "anonymous",
	"CATEGORIES": [
		"Your category"
	],
	"INPUTS": [
		{
			"NAME": "BASE_ANGLE",
			"TYPE": "float",
			"DEFAULT": 3.5,
			"MIN": -10,
			"MAX": 10
		},
		{
			"NAME": "ANGLE_DELTA",
			"TYPE": "float",
			"DEFAULT": 0,
			"MIN": -3.1416,
			"MAX": 3.1416
		},
		{
			"NAME": "XOFF",
			"TYPE": "float",
			"DEFAULT": 0.7,
			"MIN": -1,
			"MAX": 1
		}
	]
}*/

vec3 iResolution = vec3(RENDERSIZE, 1.);
float iGlobalTime = TIME;

//String Theory by nimitz (twitter: @stormoid)

// #define BASE_ANGLE 3.5
// #define ANGLE_DELTA 0.02
// #define XOFF .7

#define time iGlobalTime
mat2 mm2(in float a){float c = cos(a), s = sin(a);return mat2(c,-s,s,c);}

float aspect = iResolution.x/iResolution.y;
float featureSize = 60./((iResolution.x*aspect+iResolution.y));

float f(vec2 p)
{
	p.x = sin(p.x*1.+time*1.2)*sin(time+p.x*0.1)*3.;
    p += sin(p.x*1.5)*.1;
    return smoothstep(-0.0,featureSize,abs(p.y));
}

void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
	vec2 p = isf_FragNormCoord.xy*6.5-3.25;
	p.x *= aspect;
	p.y = abs(p.y);

	vec3 col = vec3(0);
	for(float i=0.;i<26.;i++)
	{
		vec3 col2 = (sin(vec3(3.3,2.5,2.2)+i*0.15)*0.5+0.54)*(1.-f(p));
		col = max(col,col2);

        p.x -= XOFF;
        p.y -= sin(time*0.11+1.5)*1.5+1.5;
		p*= mm2(i*ANGLE_DELTA+BASE_ANGLE);

        vec2 pa = vec2(abs(p.x-.9),abs(p.y));
        vec2 pb = vec2(p.x,abs(p.y));

        p = mix(pa,pb,smoothstep(-.07,.07,sin(time*0.24)+.1));
	}
	fragColor = vec4(col,1.0);
}

void main(void) {
    mainImage(gl_FragColor, gl_FragCoord.xy);
}