| /// @ref gtx_fast_square_root |
| /// @file glm/gtx/fast_square_root.hpp |
| /// |
| /// @see core (dependence) |
| /// |
| /// @defgroup gtx_fast_square_root GLM_GTX_fast_square_root |
| /// @ingroup gtx |
| /// |
| /// @brief 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. |
| |
| #pragma once |
| |
| // Dependency: |
| #include "../common.hpp" |
| #include "../exponential.hpp" |
| #include "../geometric.hpp" |
| |
| #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED) |
| # pragma message("GLM: GLM_GTX_fast_square_root extension included") |
| #endif |
| |
| namespace glm |
| { |
| /// @addtogroup gtx_fast_square_root |
| /// @{ |
| |
| /// Faster than the common sqrt function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename genType> |
| GLM_FUNC_DECL genType fastSqrt(genType x); |
| |
| /// Faster than the common sqrt function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename T, precision P, template <typename, precision> class vecType> |
| GLM_FUNC_DECL vecType<T, P> fastSqrt(vecType<T, P> const & x); |
| |
| /// Faster than the common inversesqrt function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename genType> |
| GLM_FUNC_DECL genType fastInverseSqrt(genType x); |
| |
| /// Faster than the common inversesqrt function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename T, precision P, template <typename, precision> class vecType> |
| GLM_FUNC_DECL vecType<T, P> fastInverseSqrt(vecType<T, P> const & x); |
| |
| /// Faster than the common length function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename genType> |
| GLM_FUNC_DECL genType fastLength(genType x); |
| |
| /// Faster than the common length function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename T, precision P, template <typename, precision> class vecType> |
| GLM_FUNC_DECL T fastLength(vecType<T, P> const & x); |
| |
| /// Faster than the common distance function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename genType> |
| GLM_FUNC_DECL genType fastDistance(genType x, genType y); |
| |
| /// Faster than the common distance function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| 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); |
| |
| /// Faster than the common normalize function but less accurate. |
| /// |
| /// @see gtx_fast_square_root extension. |
| template <typename genType> |
| GLM_FUNC_DECL genType fastNormalize(genType const & x); |
| |
| /// @} |
| }// namespace glm |
| |
| #include "fast_square_root.inl" |