precision mediump float;

out vec4 color;
in vec2 screen_pos;
in vec2 uvs;

uniform vec4 line_color;
uniform float time;

void main(){
    color = line_color;
    //color = vec4(0, 0, 0, 0.1);
    //int x = int(gl_FragCoord.y / 1);
    //int y =  int(gl_FragCoord.x / 1);
    //if ((x+y) % 2 == 0){
    //    color = vec4(0, 0, 0, 0.2);
    //}
    //else{
    //    color = vec4(0, 0, 0, 0.1);
    //}
    //color = vec4(0, 0, 0, abs(sin(gl_FragCoord.y / 10 + gl_FragCoord.x / 10)));
    //if (abs(uvs.x - fract(time * freq)) < 0.05){
        //color = vec4(line_color, 0.1);
    //}
    //else{
        //color = vec4(0, 0, 0, 0.1);
    //}
    //color = vec4(line_color * pow(abs(sin(uvs.x - time * freq)), 128), 0.3);
    //color = vec4(line_color * abs(sin(time)), 0.3);
    //color = vec4(line_color, 0.3);
}