GLM_GTX_fast_square_root: Fast square root functions

Functions
template<typename genType >
genType::value_type	fastDistance (genType const &x, genType const &y)
template<typename genType >
genType	fastInverseSqrt (genType const &x)
template<typename genType >
genType::value_type	fastLength (genType const &x)
template<typename genType >
genType	fastNormalize (genType const &x)
template<typename genType >
genType	fastSqrt (genType const &x)

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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.

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Function Documentation

genType::value_type glm::fastDistance	(	genType const &	x,
		genType const &	y
	)

Faster than the common distance function but less accurate.

From GLM_GTX_fast_square_root extension.

genType glm::fastInverseSqrt

(

genType const &

x

)

Faster than the common inversesqrt function but less accurate.

From GLM_GTX_fast_square_root extension.

genType::value_type glm::fastLength

(

genType const &

x

)

Faster than the common length function but less accurate.

From GLM_GTX_fast_square_root extension.

genType glm::fastNormalize

(

genType const &

x

)

Faster than the common normalize function but less accurate.

From GLM_GTX_fast_square_root extension.

genType glm::fastSqrt

(

genType const &

x

)

Faster than the common sqrt function but less accurate.

From GLM_GTX_fast_square_root extension.