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Planar64Vec3::{inverse,transpose,determinant}

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Quaternions 2023-11-02 17:16:34 -07:00
parent d71f143d68
commit fd9ca6cd3f
1 changed files with 35 additions and 0 deletions
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35
src/integer.rs
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@ -872,6 +872,41 @@ impl Planar64Mat3{
Planar64Vec3(glam::i64vec3(s,0,c)),
)
}
#[inline]
pub const fn inverse(&self)->Self{
let det=
-self.x_axis.0.z as i128*self.y_axis.0.y as i128*self.z_axis.0.x as i128
+self.x_axis.0.y as i128*self.y_axis.0.z as i128*self.z_axis.0.x as i128
+self.x_axis.0.z as i128*self.y_axis.0.x as i128*self.z_axis.0.y as i128
-self.x_axis.0.x as i128*self.y_axis.0.z as i128*self.z_axis.0.y as i128
-self.x_axis.0.y as i128*self.y_axis.0.x as i128*self.z_axis.0.z as i128
+self.x_axis.0.x as i128*self.y_axis.0.y as i128*self.z_axis.0.z as i128
;
Self{
x_axis:Planar64Vec3::raw((((-(self.y_axis.0.z as i128*self.z_axis.0.y as i128)+self.y_axis.0.y as i128*self.z_axis.0.z as i128)<<32)/det) as i64,(((self.x_axis.0.z as i128*self.z_axis.0.y as i128-self.x_axis.0.y as i128*self.z_axis.0.z as i128)<<32)/det) as i64,(((-(self.x_axis.0.z as i128*self.y_axis.0.y as i128)+self.x_axis.0.y as i128*self.y_axis.0.z as i128)<<32)/det) as i64),
y_axis:Planar64Vec3::raw((((self.y_axis.0.z as i128*self.z_axis.0.x as i128-self.y_axis.0.x as i128*self.z_axis.0.z as i128)<<32)/det) as i64,(((-(self.x_axis.0.z as i128*self.z_axis.0.x as i128)+self.x_axis.0.x as i128*self.z_axis.0.z as i128)<<32)/det) as i64,(((self.x_axis.0.z as i128*self.y_axis.0.x as i128-self.x_axis.0.x as i128*self.y_axis.0.z as i128)<<32)/det) as i64),
z_axis:Planar64Vec3::raw((((-(self.y_axis.0.y as i128*self.z_axis.0.x as i128)+self.y_axis.0.x as i128*self.z_axis.0.y as i128)<<32)/det) as i64,(((self.x_axis.0.y as i128*self.z_axis.0.x as i128-self.x_axis.0.x as i128*self.z_axis.0.y as i128)<<32)/det) as i64,(((-(self.x_axis.0.y as i128*self.y_axis.0.x as i128)+self.x_axis.0.x as i128*self.y_axis.0.y as i128)<<32)/det) as i64),
}
}
#[inline]
pub const fn transpose(&self)->Self{
Self{
x_axis:Planar64Vec3::raw(self.x_axis.0.x,self.y_axis.0.x,self.z_axis.0.x),
y_axis:Planar64Vec3::raw(self.x_axis.0.y,self.y_axis.0.y,self.z_axis.0.y),
z_axis:Planar64Vec3::raw(self.x_axis.0.z,self.y_axis.0.z,self.z_axis.0.z),
}
}
#[inline]
pub const fn determinant(&self)->Planar64{
Planar64(((
-self.x_axis.0.z as i128*self.y_axis.0.y as i128*self.z_axis.0.x as i128
+self.x_axis.0.y as i128*self.y_axis.0.z as i128*self.z_axis.0.x as i128
+self.x_axis.0.z as i128*self.y_axis.0.x as i128*self.z_axis.0.y as i128
-self.x_axis.0.x as i128*self.y_axis.0.z as i128*self.z_axis.0.y as i128
-self.x_axis.0.y as i128*self.y_axis.0.x as i128*self.z_axis.0.z as i128
+self.x_axis.0.x as i128*self.y_axis.0.y as i128*self.z_axis.0.z as i128
)>>64) as i64)
}
}
impl Into<glam::Mat3> for Planar64Mat3{
#[inline]