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Merge pull request #272 from plasmacel/master

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optimized cot function implementation #272
This commit is contained in:
Christophe Riccio 2014-11-21 22:15:38 +01:00
commit b944e3a990
1 changed files with 3 additions and 1 deletions
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glm/gtc/reciprocal.inl
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@ -66,7 +66,9 @@ namespace glm
GLM_FUNC_QUALIFIER genType cot(genType angle) GLM_FUNC_QUALIFIER genType cot(genType angle)
{ {
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'cot' only accept floating-point values"); GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'cot' only accept floating-point values");
return genType(1) / glm::tan(angle);
genType const pi_over_2 = genType(3.1415926535897932384626433832795 / 2.0);
return glm::tan(pi_over_2 - angle);
} }
template <typename T, precision P, template <typename, precision> class vecType> template <typename T, precision P, template <typename, precision> class vecType>