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Fixed GTC_matrix_inverse affineInverse #192

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This commit is contained in:
Christophe Riccio 2015-10-01 22:20:30 +02:00
parent ab0312be02
commit fa18ca7c2e
2 changed files with 14 additions and 12 deletions
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25
glm/gtc/matrix_inverse.inl
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@ -35,23 +35,24 @@ namespace glm
template <typename T, precision P>
GLM_FUNC_QUALIFIER tmat3x3<T, P> affineInverse(tmat3x3<T, P> const & m)
{
tmat3x3<T, P> Result(m);
Result[2] = tvec3<T, P>(0, 0, 1);
Result = transpose(Result);
tvec3<T, P> Translation = Result * tvec3<T, P>(-tvec2<T, P>(m[2]), m[2][2]);
Result[2] = Translation;
return Result;
tmat2x2<T, P> const Inv(inverse(tmat2x2<T, P>(m)));
return tmat3x3<T, P>(
tvec3<T, P>(Inv[0], static_cast<T>(0)),
tvec3<T, P>(Inv[1], static_cast<T>(0)),
tvec3<T, P>(-Inv * tvec2<T, P>(m[2]), static_cast<T>(1)));
}
template <typename T, precision P>
GLM_FUNC_QUALIFIER tmat4x4<T, P> affineInverse(tmat4x4<T, P> const & m)
{
tmat4x4<T, P> Result(m);
Result[3] = tvec4<T, P>(0, 0, 0, 1);
Result = transpose(Result);
tvec4<T, P> Translation = Result * tvec4<T, P>(-tvec3<T, P>(m[3]), m[3][3]);
Result[3] = Translation;
return Result;
tmat3x3<T, P> const Inv(inverse(tmat3x3<T, P>(m)));
return tmat4x4<T, P>(
tvec4<T, P>(Inv[0], static_cast<T>(0)),
tvec4<T, P>(Inv[1], static_cast<T>(0)),
tvec4<T, P>(Inv[2], static_cast<T>(0)),
tvec4<T, P>(-Inv * tvec3<T, P>(m[3]), static_cast<T>(1)));
}
template <typename T, precision P>

1
readme.md
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@ -59,6 +59,7 @@ glm::mat4 camera(float Translate, glm::vec2 const & Rotate)
##### Fixes:
- Fixed GTC_round floorMultiple/ceilMultiple #412
- Fixed GTC_packing unpackUnorm3x10_1x2 #414
- Fixed GTC_matrix_inverse affineInverse #192
#### [GLM 0.9.7.1](https://github.com/g-truc/glm/releases/tag/0.9.7.1) - 2015-09-07
##### Improvements: