shz_mat3x3_inverse_unscaled
SHZ_INLINE void shz_mat3x3_inverse_unscaled(const shz_mat3x3_t* mat, shz_mat3x3_t* out) SHZ_NOEXCEPT;Computes the inverse of an orthonormal 3x3 matrix.
Parameters
Section titled “Parameters”| Name | Type | Description |
|---|---|---|
mat | const shz_mat3x3_t * | Pointer to the 3x3 matrix to invert. |
out | shz_mat3x3_t * | Pointer to the resulting inverted matrix. |
Returns
Section titled “Returns”Nothing (void).
- The routine saves cycles by not scaling by the determinant, which is typically useful for normals and lighting, where the matrix has no scale factor.
Warnings
Section titled “Warnings”- This routine clobbers XMTRX.
Availability
Section titled “Availability”- C++ equivalent: none (call the C function from C++)
- Type-generic form: none
- Back-ends: SH4: shared C implementation · SW: portable C · SPU: shared C implementation
- Defined in:
sh4zam/shz_matrix.h:959 - Module: Matrix, section "Functions"