Shader Library

#define BPM 130.0

varying vec2 v_uv;

uniform float u_time;

uniform vec2 u_resolution;

uniform sampler2D u_texturemap;

void main()

{

vec4 sample1 = texture2D(u_texturemap, v_uv);

vec2 uv = v_uv * 2.0 - 1.0;

uv.y += u_time * 0.001;

float line = smoothstep(

-1.0,

0.001,

sin(uv.y * u_resolution.y)

);

vec3 color = mix(vec3(0.0), sample1.xyz, line);

gl_FragColor = vec4(color, 1.0);

}