Distorted Android

    return mV.add(EffectNames.DISTORT, vector, center, null);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * Deform the shape of the whole Object with a (possibly changing in time) vector of force applied to

   * <p>

   * Unity: (forceX,forceY) = (0,0)

   */

 /**

   * Pull (or push away) all points around a center point to (from) it.

   * <p>

//

// Constants:

// a) A : valid values: (0,infinity). 'Bendiness' if the surface - the higher A is, the more the surface

// b) B : valid values: <-1,1>. The amount side edges get 'sucked' inwards when we pull the middle of the

//        top edge up. B=0 --> not at all, B=1: a looot. B=-0.5: the edges will actually be pushed outwards

//        quite a bit. One can also set it to <-1 or >1, but it will look a bit ridiculous.

void deform(in int effect, inout vec4 v)

  {

  const float A = 0.5;

  const float B = 0.2;

  const float C = 5.0;

  vec2 center = vUniforms[effect+1].yz;

  vec2 aForce = abs(force);

  quot = quot*quot;                          // ( (x/W)^2 , (y/H)^2 ) where x,y are distances from V to center

  float denomV = 1.0 / (aForce.y + Aw.x);

  float denomH = 1.0 / (aForce.x + Aw.y);

  float mvYvert =  force.y * (1.0-quot.x*Aw.x*denomV) * vertCorr.y;  // impact the vertical   component of the force vector has on vertical   movement

  float mvXhorz = -force.x * (1.0-quot.y*Aw.y*denomH) * vertCorr.x;  // impact the horizontal component of the force vector has on horizontal movement