| /////////////////////////////////////////////////////////////////////////////////// |
| /// OpenGL Mathematics (glm.g-truc.net) |
| /// |
| /// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) |
| /// Permission is hereby granted, free of charge, to any person obtaining a copy |
| /// of this software and associated documentation files (the "Software"), to deal |
| /// in the Software without restriction, including without limitation the rights |
| /// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| /// copies of the Software, and to permit persons to whom the Software is |
| /// furnished to do so, subject to the following conditions: |
| /// |
| /// The above copyright notice and this permission notice shall be included in |
| /// all copies or substantial portions of the Software. |
| /// |
| /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| /// THE SOFTWARE. |
| /// |
| /// @ref gtx_constants |
| /// @file glm/gtx/constants.inl |
| /// @date 2011-10-14 / 2012-01-25 |
| /// @author Christophe Riccio |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| #include <limits> |
| |
| namespace glm |
| { |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType epsilon() |
| { |
| return std::numeric_limits<genType>::epsilon(); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType zero() |
| { |
| return genType(0); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType one() |
| { |
| return genType(1); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType pi() |
| { |
| return genType(3.14159265358979323846264338327950288); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_pi() |
| { |
| return genType(1.772453850905516027); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType half_pi() |
| { |
| return genType(1.57079632679489661923132169163975144); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType quarter_pi() |
| { |
| return genType(0.785398163397448309615660845819875721); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType one_over_pi() |
| { |
| return genType(0.318309886183790671537767526745028724); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType two_over_pi() |
| { |
| return genType(0.636619772367581343075535053490057448); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType two_over_root_pi() |
| { |
| return genType(1.12837916709551257389615890312154517); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType one_over_root_two() |
| { |
| return genType(0.707106781186547524400844362104849039); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_half_pi() |
| { |
| return genType(1.253314137315500251); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_two_pi() |
| { |
| return genType(2.506628274631000502); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_ln_four() |
| { |
| return genType(1.17741002251547469); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType e() |
| { |
| return genType(2.71828182845904523536); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType euler() |
| { |
| return genType(0.577215664901532860606); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_two() |
| { |
| return genType(1.41421356237309504880168872420969808); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_three() |
| { |
| return genType(1.73205080756887729352744634150587236); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType root_five() |
| { |
| return genType(2.23606797749978969640917366873127623); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType ln_two() |
| { |
| return genType(0.693147180559945309417232121458176568); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType ln_ten() |
| { |
| return genType(2.30258509299404568401799145468436421); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType ln_ln_two() |
| { |
| return genType(-0.3665129205816643); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType third() |
| { |
| return genType(0.3333333333333333333333333333333333333333); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType two_thirds() |
| { |
| return genType(0.666666666666666666666666666666666666667); |
| } |
| |
| template <typename genType> |
| GLM_FUNC_QUALIFIER genType golden_ratio() |
| { |
| return genType(1.61803398874989484820458683436563811); |
| } |
| } //namespace glm |