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fast_square_root.hpp
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1
15 #pragma once
16
17 // Dependency:
18 #include "../common.hpp"
19 #include "../exponential.hpp"
20 #include "../geometric.hpp"
21
22 #ifndef GLM_ENABLE_EXPERIMENTAL
23 # error "GLM: GLM_GTX_fast_square_root is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
24 #elif GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
25 # pragma message("GLM: GLM_GTX_fast_square_root extension included")
26 #endif
27
28 namespace glm
29 {
32
36 template<typename genType>
37 GLM_FUNC_DECL genType fastSqrt(genType x);
38
42 template<length_t L, typename T, qualifier Q>
43 GLM_FUNC_DECL vec<L, T, Q> fastSqrt(vec<L, T, Q> const& x);
44
48 template<typename genType>
49 GLM_FUNC_DECL genType fastInverseSqrt(genType x);
50
54 template<length_t L, typename T, qualifier Q>
55 GLM_FUNC_DECL vec<L, T, Q> fastInverseSqrt(vec<L, T, Q> const& x);
56
60 template<typename genType>
61 GLM_FUNC_DECL genType fastLength(genType x);
62
66 template<length_t L, typename T, qualifier Q>
67 GLM_FUNC_DECL T fastLength(vec<L, T, Q> const& x);
68
72 template<typename genType>
73 GLM_FUNC_DECL genType fastDistance(genType x, genType y);
74
78 template<length_t L, typename T, qualifier Q>
79 GLM_FUNC_DECL T fastDistance(vec<L, T, Q> const& x, vec<L, T, Q> const& y);
80
84 template<typename genType>
85 GLM_FUNC_DECL genType fastNormalize(genType x);
86
90 template<length_t L, typename T, qualifier Q>
91 GLM_FUNC_DECL vec<L, T, Q> fastNormalize(vec<L, T, Q> const& x);
92
94 }// namespace glm
95
96 #include "fast_square_root.inl"
glm::fastLength
GLM_FUNC_DECL T fastLength(vec< L, T, Q > const &x)
Faster than the common length function but less accurate.
glm::fastDistance
GLM_FUNC_DECL T fastDistance(vec< L, T, Q > const &x, vec< L, T, Q > const &y)
Faster than the common distance function but less accurate.
glm::fastInverseSqrt
GLM_FUNC_DECL vec< L, T, Q > fastInverseSqrt(vec< L, T, Q > const &x)
Faster than the common inversesqrt function but less accurate.
glm::fastNormalize
GLM_FUNC_DECL vec< L, T, Q > fastNormalize(vec< L, T, Q > const &x)
Faster than the common normalize function but less accurate.
glm::fastSqrt
GLM_FUNC_DECL vec< L, T, Q > fastSqrt(vec< L, T, Q > const &x)
Faster than the common sqrt function but less accurate.