Distorted Android

  if( deg != 0.0 && length != 0.0 )

    float sinA   = vUniforms[effect  ].y;

    float cosA   = vUniforms[effect+1].x;

    float sinB   = vUniforms[effect  ].w;

    float cosB   = vUniforms[effect+1].y;

    float angle = 1.578*(ps.x*cosB+ps.y*sinB) / length;

    vec3 dir    = vec3(sinB*cosA,cosB*cosA,sinA);

    v.xyz += sin(angle)*deg*dir;

    float sqrtX = sqrt(dir.y*dir.y + dir.z*dir.z);

    float sqrtY = sqrt(dir.x*dir.x + dir.z*dir.z);

    float sinX = ( sqrtX==0.0 ? 0.0 : dir.z / sqrtX);

    float cosX = ( sqrtX==0.0 ? 1.0 : dir.y / sqrtX);

    float sinY = ( sqrtY==0.0 ? 0.0 : dir.z / sqrtY);

    float cosY = ( sqrtY==0.0 ? 1.0 : dir.y / sqrtY);

    float tmp = 1.578*cos(angle)*deg/length;

    float fx = cosB*tmp;

    float fy = sinB*tmp;

    vec3 sx = vec3 (1.0+cosX*fx,cosY*sinX*fx,sinY*sinX*fx);

    vec3 sy = vec3 (cosX*sinY*fy,1.0+cosY*fy,sinX*sinY*fy);

    vec3 normal = cross(sx,sy);

    if( n.z != 0.0 )

      {

      n.xyz = n.z*normal;

      }