text: const turbulence = `
  float turbulence( vec3 p ) {
  
    float w = 100.0;
    float t = -.5;
  
    for (float f = 1.0 ; f <= 10.0 ; f++ ){
      float power = pow( 2.0, f );
      t += abs( noise3d( vec3( power * p )));
    }
  
    return t;
  
  }
  `;
  
  export default turbulence;
  