uniform highp float DAMAGE_AMOUNT;

void fragment() {

     // Higher exponent -> stronger blinding effect

     // Gradually mixes between the texture mix and a full-white texture, causing the "blinding" effect
     highp vec4 mixed = mix(vec4(1.0, 1.0, 1.0, 1.0), vec4(1.0, 1.0, 1.0, 1.0), DAMAGE_AMOUNT);

     COLOR = vec4(mixed.rgb, DAMAGE_AMOUNT);
}