mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-26 18:23:49 +00:00
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Created : 2006-01-04
|
||
|
|
// Updated : 2008-10-07
|
||
|
|
// Licence : This source is under MIT License
|
||
|
|
// File : glm/gtx/fast_square_root.hpp
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Dependency:
|
||
|
|
// - GLM core
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Note:
|
||
|
|
// - Sqrt optimisation based on Newton's method,
|
||
|
|
// www.gamedev.net/community/forums/topic.asp?topic id=139956
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#ifndef glm_gtx_fast_square_root
|
||
|
|
#define glm_gtx_fast_square_root
|
||
|
|
|
||
|
|
// Dependency:
|
||
|
|
#include "../glm.hpp"
|
||
|
|
|
||
|
|
#if(defined(GLM_MESSAGES) && !defined(glm_ext))
|
||
|
|
# pragma message("GLM: GLM_GTX_fast_square_root extension included")
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace glm{
|
||
|
|
namespace gtx{
|
||
|
|
namespace fast_square_root ///< GLM_GTX_fast_square_root extension: Fast but less accurate implementations of square root based functions.
|
||
|
|
{
|
||
|
|
/// \addtogroup gtx_fast_square_root
|
||
|
|
/// @{
|
||
|
|
|
||
|
|
//! Faster than the common sqrt function but less accurate.
|
||
|
|
//! From GLM_GTX_fast_square_root extension.
|
||
|
|
template <typename genType>
|
||
|
|
genType fastSqrt(genType const & x);
|
||
|
|
|
||
|
|
//! Faster than the common inversesqrt function but less accurate.
|
||
|
|
//! From GLM_GTX_fast_square_root extension.
|
||
|
|
template <typename genType>
|
||
|
|
genType fastInverseSqrt(genType const & x);
|
||
|
|
|
||
|
|
//! Faster than the common length function but less accurate.
|
||
|
|
//! From GLM_GTX_fast_square_root extension.
|
||
|
|
template <typename genType>
|
||
|
|
typename genType::value_type fastLength(genType const & x);
|
||
|
|
|
||
|
|
//! Faster than the common distance function but less accurate.
|
||
|
|
//! From GLM_GTX_fast_square_root extension.
|
||
|
|
template <typename genType>
|
||
|
|
typename genType::value_type fastDistance(genType const & x, genType const & y);
|
||
|
|
|
||
|
|
//! Faster than the common normalize function but less accurate.
|
||
|
|
//! From GLM_GTX_fast_square_root extension.
|
||
|
|
template <typename genType>
|
||
|
|
genType fastNormalize(genType const & x);
|
||
|
|
|
||
|
|
/// @}
|
||
|
|
}// namespace fast_square_root
|
||
|
|
}// namespace gtx
|
||
|
|
}// namespace glm
|
||
|
|
|
||
|
|
#include "fast_square_root.inl"
|
||
|
|
|
||
|
|
namespace glm{using namespace gtx::fast_square_root;}
|
||
|
|
|
||
|
|
#endif//glm_gtx_fast_square_root
|