text: // From https://github.com/glslify/glsl-easings
  
  export default /* glsl */`
  #ifndef PI
  #define PI 3.141592653589793
  #endif
  
  float backOut(float t) {
    float f = 1.0 - t;
    return 1.0 - (pow(f, 3.0) - f * sin(f * PI));
  }
  `;
  