GLM_GTX_fast_square_root

Functions
template<typename genType >
GLM_FUNC_DECL genType	fastDistance (genType x, genType y)
template<typename T , precision P, template< typename, precision > class vecType>
GLM_FUNC_DECL T	fastDistance (vecType< T, P > const &x, vecType< T, P > const &y)
template<typename genType >
GLM_FUNC_DECL genType	fastInverseSqrt (genType x)
template<typename T , precision P, template< typename, precision > class vecType>
GLM_FUNC_DECL vecType< T, P >	fastInverseSqrt (vecType< T, P > const &x)
template<typename genType >
GLM_FUNC_DECL genType::value_type	fastLength (genType const &x)
template<typename genType >
GLM_FUNC_DECL genType	fastNormalize (genType const &x)
template<typename genType >
GLM_FUNC_DECL genType	fastSqrt (genType x)

Detailed Description

Fast but less accurate implementations of square root based functions.

• Sqrt optimisation based on Newton's method, www.gamedev.net/community/forums/topic.asp?topic id=139956

<glm/gtx/fast_square_root.hpp> need to be included to use these functionalities.

Function Documentation

GLM_FUNC_DECL genType glm::fastDistance	(	genType	x,
		genType	y
	)

Faster than the common distance function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL T glm::fastDistance	(	vecType< T, P > const &	x,
		vecType< T, P > const &	y
	)

Faster than the common distance function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastInverseSqrt

(

genType

x

)

Faster than the common inversesqrt function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL vecType<T, P> glm::fastInverseSqrt

(

vecType< T, P > const &

x

)

Faster than the common inversesqrt function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType::value_type glm::fastLength

(

genType const &

x

)

Faster than the common length function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastNormalize

(

genType const &

x

)

Faster than the common normalize function but less accurate.

From GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastSqrt

(

genType

x

)

Faster than the common sqrt function but less accurate.

From GLM_GTX_fast_square_root extension.