precision highp float;

uniform sampler2D uParticlesB;

varying vec2 fUV;

void main() {
    vec4 particleBData = texture2D(uParticlesB, fUV);
    particleBData.x -= (1.0 / 1024.0);

    if (particleBData.x < -0.5) {
        particleBData.x = 1.0;
    }

    gl_FragColor = particleBData;
}