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try to increase precision of matrix transform vector operations

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This commit is contained in:
Garux 2018-03-08 16:57:47 +03:00
parent 1b8fc11668
commit a02c1312c4
1 changed files with 10 additions and 10 deletions
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20
libs/math/matrix.h
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@ -374,9 +374,9 @@ inline void matrix4_affine_premultiply_by_matrix4( Matrix4& self, const Matrix4&
template<typename Element>
inline BasicVector3<Element> matrix4_transformed_point( const Matrix4& self, const BasicVector3<Element>& point ){
return BasicVector3<Element>(
static_cast<Element>( self[0] * point[0] + self[4] * point[1] + self[8] * point[2] + self[12] ),
static_cast<Element>( self[1] * point[0] + self[5] * point[1] + self[9] * point[2] + self[13] ),
static_cast<Element>( self[2] * point[0] + self[6] * point[1] + self[10] * point[2] + self[14] )
static_cast<Element>( point[0] * self[0] + point[1] * self[4] + point[2] * self[8] + self[12] ),
static_cast<Element>( point[0] * self[1] + point[1] * self[5] + point[2] * self[9] + self[13] ),
static_cast<Element>( point[0] * self[2] + point[1] * self[6] + point[2] * self[10] + self[14] )
);
}
@ -390,9 +390,9 @@ inline void matrix4_transform_point( const Matrix4& self, BasicVector3<Element>&
template<typename Element>
inline BasicVector3<Element> matrix4_transformed_direction( const Matrix4& self, const BasicVector3<Element>& direction ){
return BasicVector3<Element>(
static_cast<Element>( self[0] * direction[0] + self[4] * direction[1] + self[8] * direction[2] ),
static_cast<Element>( self[1] * direction[0] + self[5] * direction[1] + self[9] * direction[2] ),
static_cast<Element>( self[2] * direction[0] + self[6] * direction[1] + self[10] * direction[2] )
static_cast<Element>( direction[0] * self[0] + direction[1] * self[4] + direction[2] * self[8] ),
static_cast<Element>( direction[0] * self[1] + direction[1] * self[5] + direction[2] * self[9] ),
static_cast<Element>( direction[0] * self[2] + direction[1] * self[6] + direction[2] * self[10] )
);
}
@ -406,10 +406,10 @@ inline void matrix4_transform_direction( const Matrix4& self, BasicVector3<Eleme
template<typename Element>
inline BasicVector4<Element> matrix4_transformed_vector4( const Matrix4& self, const BasicVector4<Element>& vector4 ){
return BasicVector4<Element>(
static_cast<Element>( self[0] * vector4[0] + self[4] * vector4[1] + self[8] * vector4[2] + self[12] * vector4[3] ),
static_cast<Element>( self[1] * vector4[0] + self[5] * vector4[1] + self[9] * vector4[2] + self[13] * vector4[3] ),
static_cast<Element>( self[2] * vector4[0] + self[6] * vector4[1] + self[10] * vector4[2] + self[14] * vector4[3] ),
static_cast<Element>( self[3] * vector4[0] + self[7] * vector4[1] + self[11] * vector4[2] + self[15] * vector4[3] )
static_cast<Element>( vector4[0] * self[0] + vector4[1] * self[4] + vector4[2] * self[8] + vector4[3] * self[12] ),
static_cast<Element>( vector4[0] * self[1] + vector4[1] * self[5] + vector4[2] * self[9] + vector4[3] * self[13] ),
static_cast<Element>( vector4[0] * self[2] + vector4[1] * self[6] + vector4[2] * self[10] + vector4[3] * self[14] ),
static_cast<Element>( vector4[0] * self[3] + vector4[1] * self[7] + vector4[2] * self[11] + vector4[3] * self[15] )
);
}