nalgebra/nalgebra-glm/src/gtc/matrix_inverse.rs

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use na::{DefaultAllocator, Real};
use aliases::TMat;
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use traits::{Alloc, Dimension};
/// Fast matrix inverse for affine matrix.
pub fn affine_inverse<N: Real, D: Dimension>(m: TMat<N, D, D>) -> TMat<N, D, D>
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where
DefaultAllocator: Alloc<N, D, D>,
{
// FIXME: this should be optimized.
m.try_inverse().unwrap_or_else(TMat::<_, D, D>::zeros)
}
/// Compute the transpose of the inverse of a matrix.
pub fn inverse_transpose<N: Real, D: Dimension>(m: TMat<N, D, D>) -> TMat<N, D, D>
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where
DefaultAllocator: Alloc<N, D, D>,
{
m.try_inverse()
.unwrap_or_else(TMat::<_, D, D>::zeros)
.transpose()
}