Function intersect

Source/3rdParty/bx/src/bounds.cpp:426–457

	}

	bool intersect(const Ray& _ray, const Aabb& _aabb, Hit* _hit)
	{
		const Vec3 invDir = rcp(_ray.dir);
		const Vec3 tmp0   = sub(_aabb.min, _ray.pos);
		const Vec3 t0     = mul(tmp0, invDir);
		const Vec3 tmp1   = sub(_aabb.max, _ray.pos);
		const Vec3 t1     = mul(tmp1, invDir);

		const Vec3 mn = min(t0, t1);
		const Vec3 mx = max(t0, t1);

		const float tmin = max(mn.x, mn.y, mn.z);
		const float tmax = min(mx.x, mx.y, mx.z);

		if (0.0f > tmax
		||  tmin > tmax)
		{
			return false;
		}

		if (NULL != _hit)
		{
			_hit->plane.normal.x = float( (t1.x == tmin) - (t0.x == tmin) );
			_hit->plane.normal.y = float( (t1.y == tmin) - (t0.y == tmin) );
			_hit->plane.normal.z = float( (t1.z == tmin) - (t0.z == tmin) );

			_hit->plane.dist = tmin;
			_hit->pos        = getPointAt(_ray, tmin);
		}

		return true;
	}

	static constexpr Aabb kUnitAabb =
	{