text: // From https://github.com/glslify/glsl-easings
  
  export default /* glsl */`
  #ifndef HALF_PI
  #define HALF_PI 1.5707963267948966
  #endif
  
  float sineIn(float t) {
    return sin((t - 1.0) * HALF_PI) + 1.0;
  }
  `;
  