petrsm

	static NX_FORCEINLINE float FastLog2_P2(float a)
	{
		// Based on code by Norbert Juffa
		// r = log2(1 + m) for m in [sqrt(0.5) - 1, sqrt(2.0) - 1] range

		const int	e = (FloatAsUInt(a) - 0x3f3504f3) & 0xff800000;
		const float	m = UIntAsFloat(FloatAsUInt(a) - e) - 1.0f;
		const float	i = (float)e * 1.19209290e-7f;
		float		r = -6.8969686599880982e-1f;

petrsm

	static NX_FORCEINLINE float FastPow2_P2(float p)
	{
		// 2^x = 2^xi * 2^xf
		// pow2f - polynomial approximation of e(x) on <0, 1) range

		const float	pi	= floorf(p);
		const float	pf	= p - pi;
		const float	pow2i	= UIntAsFloat((1 << 23) * ((int)pi + 127));
		float		pow2f	= 3.4400110689651967e-1f;

petrsm

	//
	// CatmullRomBoundinBox2D()
	//
	//
	//*********************************************************************************************
	template <typename T_Vec2>
	void CatmullRomBoundingBox2D(const T_Vec2 ctrlPts[4], T_Vec2 &min, T_Vec2 &max)
	{
		// See this for description of concept:
		// https://stackoverflow.com/questions/24809978/calculating-the-bounding-box-of-cubic-bezier-curve

petrsm

	//
	// CatmullRomLength()
	//
	//
	//*******************************************************************************************
	template <typename T>
	T CatmullRomLength(	const CVector2<T>	&p0, 
						const CVector2<T>	&p1, 
						const CVector2<T>	&p2, 
						const CVector2<T>	&p3,

petrsm

	//
	// CatmullRomCurveProjectPt()
	//
	//
	//*******************************************************************************************
	template <typename T>
	T CatmullRomCurveProjectPt(	const CVector2<T> &p0, 
								const CVector2<T> &p1, 
								const CVector2<T> &p2, 
								const CVector2<T> &p3,