uniform mediump float specPower;
varying lowp vec3 halfDir;
varying lowp vec3 normal;
void main ()
{
  lowp vec4 c;
  lowp float tmpvar_1;
  tmpvar_1 = dot (normal, halfDir);
  mediump vec4 tmpvar_2;
  tmpvar_2 = vec4(pow (tmpvar_1, specPower));
  c = tmpvar_2;
  gl_FragColor = c;
}