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- Added GLM_FORCE_QUAT_DATA_WXYZ to store quat data as w,x,y,z instead of x,y,z,w #983

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This commit is contained in:
Christophe Riccio 2020-01-05 15:51:05 +01:00
parent c8440b09e2
commit 638eb14fcd
3 changed files with 17 additions and 2 deletions
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10
glm/detail/type_quat.hpp
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@ -42,12 +42,20 @@ namespace glm
# if GLM_LANG & GLM_LANG_CXXMS_FLAG # if GLM_LANG & GLM_LANG_CXXMS_FLAG
union union
{ {
struct { T x, y, z, w;}; # ifdef GLM_FORCE_QUAT_DATA_WXYZ
struct { T w, x, y, z; };
# else
struct { T x, y, z, w; };
# endif
typename detail::storage<4, T, detail::is_aligned<Q>::value>::type data; typename detail::storage<4, T, detail::is_aligned<Q>::value>::type data;
}; };
# else # else
# ifdef GLM_FORCE_QUAT_DATA_WXYZ
T x, y, z, w; T x, y, z, w;
# else
T w, x, y, z;
# endif
# endif # endif
# if GLM_SILENT_WARNINGS == GLM_ENABLE # if GLM_SILENT_WARNINGS == GLM_ENABLE

6
manual.md
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@ -35,6 +35,7 @@
+ [2.18. GLM\_FORCE\_SIZE\_T\_LENGTH: Vector and matrix static size type](#section2_18) + [2.18. GLM\_FORCE\_SIZE\_T\_LENGTH: Vector and matrix static size type](#section2_18)
+ [2.19. GLM\_FORCE\_UNRESTRICTED\_GENTYPE: Removing genType restriction](#section2_19) + [2.19. GLM\_FORCE\_UNRESTRICTED\_GENTYPE: Removing genType restriction](#section2_19)
+ [2.20. GLM\_FORCE\_SILENT\_WARNINGS: Silent C++ warnings from language extensions](#section2_20) + [2.20. GLM\_FORCE\_SILENT\_WARNINGS: Silent C++ warnings from language extensions](#section2_20)
+ [2.21. GLM\_FORCE\_QUAT\_DATA\_WXYZ: Force GLM to store quat data as w,x,y,z instead of x,y,z,w](#section2_21)
+ [3. Stable extensions](#section3) + [3. Stable extensions](#section3)
+ [3.1. Scalar types](#section3_1) + [3.1. Scalar types](#section3_1)
+ [3.2. Scalar functions](#section3_2) + [3.2. Scalar functions](#section3_2)
@ -716,6 +717,11 @@ int average(int const A, int const B)
When using /W4 on Visual C++ or -Wpedantic on GCC, for example, the compilers will generate warnings for using C++ language extensions (/Za with Visual C++) such as anonymous struct. When using /W4 on Visual C++ or -Wpedantic on GCC, for example, the compilers will generate warnings for using C++ language extensions (/Za with Visual C++) such as anonymous struct.
GLM relies on anonymous structs for swizzle operators and aligned vector types. To silent those warnings define `GLM_FORCE_SILENT_WARNINGS` before including GLM headers. GLM relies on anonymous structs for swizzle operators and aligned vector types. To silent those warnings define `GLM_FORCE_SILENT_WARNINGS` before including GLM headers.
### <a name="section2_21"></a> 2.21. GLM\_FORCE\_QUAT\_DATA\_WXYZ: Force GLM to store quat data as w,x,y,z instead of x,y,z,w
By default GLM store quaternion components with the x, y, z, w order. `GLM_FORCE_QUAT_DATA_WXYZ` allows switching the quaternion data storage to the w, x, y, z order.
--- ---
<div style="page-break-after: always;"> </div> <div style="page-break-after: always;"> </div>

1
readme.md
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@ -59,6 +59,7 @@ glm::mat4 camera(float Translate, glm::vec2 const& Rotate)
- Added CMake GLM interface #963 - Added CMake GLM interface #963
- Added fma implementation based on std::fma #969 - Added fma implementation based on std::fma #969
- Added missing quat constexpr #955 - Added missing quat constexpr #955
- Added GLM_FORCE_QUAT_DATA_WXYZ to store quat data as w,x,y,z instead of x,y,z,w #983
#### Fixes: #### Fixes:
- Fixed equal ULP variation when using negative sign #965 - Fixed equal ULP variation when using negative sign #965