Tab3r · October 28, 2014 08:47
diff --git a/fisc.c b/fisc.c
 float FastInvSqrt(float x) {
  float xhalf = 0.5f * x;
  int i = *(int*)&x;         // evil floating point bit level hacking
  i = 0x5f3759df - (i >> 1);  // what the fuck?
  x = *(float*)&i;
  x = x*(1.5f-(xhalf*x*x));
  return x;
 }
	float FastInvSqrt(float x) {
	float xhalf = 0.5f * x;
	int i = (int)&x; // evil floating point bit level hacking
	i = 0x5f3759df - (i >> 1); // what the fuck?
	x = (float)&i;
	x = x(1.5f-(xhalfx*x));
	return x;
	}