GLM_GTX_fast_square_root

Fast but less accurate implementations of square root based functions. More...

Functions
template<typename genType >
GLM_FUNC_DECL genType	fastDistance (genType x, genType y)
	Faster than the common distance function but less accurate. More...
template<length_t L, typename T , qualifier P>
GLM_FUNC_DECL T	fastDistance (vec< L, T, P > const &x, vec< L, T, P > const &y)
	Faster than the common distance function but less accurate. More...
template<typename genType >
GLM_FUNC_DECL genType	fastInverseSqrt (genType x)
	Faster than the common inversesqrt function but less accurate. More...
template<length_t L, typename T , qualifier P>
GLM_FUNC_DECL vec< L, T, P >	fastInverseSqrt (vec< L, T, P > const &x)
	Faster than the common inversesqrt function but less accurate. More...
template<typename genType >
GLM_FUNC_DECL genType	fastLength (genType x)
	Faster than the common length function but less accurate. More...
template<length_t L, typename T , qualifier P>
GLM_FUNC_DECL T	fastLength (vec< L, T, P > const &x)
	Faster than the common length function but less accurate. More...
template<typename genType >
GLM_FUNC_DECL genType	fastNormalize (genType const &x)
	Faster than the common normalize function but less accurate. More...
template<typename genType >
GLM_FUNC_DECL genType	fastSqrt (genType x)
	Faster than the common sqrt function but less accurate. More...
template<length_t L, typename T , qualifier P>
GLM_FUNC_DECL vec< L, T, P >	fastSqrt (vec< L, T, P > const &x)
	Faster than the common sqrt function but less accurate. More...

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.

See also

GLM_GTX_fast_square_root extension.

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

Faster than the common distance function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastInverseSqrt

(

genType

x

)

Faster than the common inversesqrt function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL vec<L, T, P> glm::fastInverseSqrt

(

vec< L, T, P > const &

x

)

Faster than the common inversesqrt function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastLength

(

genType

x

)

Faster than the common length function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL T glm::fastLength

(

vec< L, T, P > const &

x

)

Faster than the common length function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastNormalize

(

genType const &

x

)

Faster than the common normalize function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL genType glm::fastSqrt

(

genType

x

)

Faster than the common sqrt function but less accurate.

See also

GLM_GTX_fast_square_root extension.

GLM_FUNC_DECL vec<L, T, P> glm::fastSqrt

(

vec< L, T, P > const &

x

)

Faster than the common sqrt function but less accurate.

See also

GLM_GTX_fast_square_root extension.