lines shader

lines.glsl

#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif

uniform float time;
uniform vec2 resolution;

float round(float num) {
	if (num >= 0.5) return ceil(num);
	return floor(num);
}

void main(void) {
    vec2 uv = vec2(( gl_FragCoord - 0.5*resolution.x ) / resolution.y);

    vec3 col = 0.5 + 0.5*cos(time+uv.xyx+vec3(0,2,4));
    uv.y += sin(uv.x*3.0)/((uv.x+4.0+sin(time))/0.1);

    uv.x += round(uv.y*49.3) * (5.347*round(uv.y*49.3+time+uv.x*(sin(time/10.0)*10.0)*sin(uv.x*3.14)));

    gl_FragColor = vec4(col,1.0)*mod(uv.x-time/5.0,0.4);
}