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88 lines
2.8 KiB
88 lines
2.8 KiB
/// @ref gtx_fast_square_root |
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/// @file glm/gtx/fast_square_root.hpp |
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/// |
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/// @see core (dependence) |
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/// |
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/// @defgroup gtx_fast_square_root GLM_GTX_fast_square_root |
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/// @ingroup gtx |
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/// |
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/// @brief Fast but less accurate implementations of square root based functions. |
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/// - Sqrt optimisation based on Newton's method, |
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/// www.gamedev.net/community/forums/topic.asp?topic id=139956 |
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/// |
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/// <glm/gtx/fast_square_root.hpp> need to be included to use these functionalities. |
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#pragma once |
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// Dependency: |
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#include "../common.hpp" |
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#include "../exponential.hpp" |
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#include "../geometric.hpp" |
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#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED)) |
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# pragma message("GLM: GLM_GTX_fast_square_root extension included") |
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#endif |
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namespace glm |
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{ |
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/// @addtogroup gtx_fast_square_root |
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/// @{ |
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/// Faster than the common sqrt function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename genType> |
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GLM_FUNC_DECL genType fastSqrt(genType x); |
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/// Faster than the common sqrt function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename T, precision P, template <typename, precision> class vecType> |
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GLM_FUNC_DECL vecType<T, P> fastSqrt(vecType<T, P> const & x); |
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/// Faster than the common inversesqrt function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename genType> |
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GLM_FUNC_DECL genType fastInverseSqrt(genType x); |
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/// Faster than the common inversesqrt function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename T, precision P, template <typename, precision> class vecType> |
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GLM_FUNC_DECL vecType<T, P> fastInverseSqrt(vecType<T, P> const & x); |
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/// Faster than the common length function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename genType> |
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GLM_FUNC_DECL genType fastLength(genType x); |
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/// Faster than the common length function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename T, precision P, template <typename, precision> class vecType> |
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GLM_FUNC_DECL T fastLength(vecType<T, P> const & x); |
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/// Faster than the common distance function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename genType> |
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GLM_FUNC_DECL genType fastDistance(genType x, genType y); |
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/// Faster than the common distance function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename T, precision P, template <typename, precision> class vecType> |
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GLM_FUNC_DECL T fastDistance(vecType<T, P> const & x, vecType<T, P> const & y); |
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/// Faster than the common normalize function but less accurate. |
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/// |
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/// @see gtx_fast_square_root extension. |
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template <typename genType> |
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GLM_FUNC_DECL genType fastNormalize(genType const & x); |
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/// @} |
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}// namespace glm |
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#include "fast_square_root.inl"
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