Function HMM_InvGeneralM3

HandmadeMath.h:1430–1447

COVERAGE(HMM_InvGeneralM3, 1)
static inline HMM_Mat3 HMM_InvGeneralM3(HMM_Mat3 Matrix) 
{
    ASSERT_COVERED(HMM_InvGeneralM3);

    HMM_Mat3 Cross;
    Cross.Columns[0] = HMM_Cross(Matrix.Columns[1], Matrix.Columns[2]);
    Cross.Columns[1] = HMM_Cross(Matrix.Columns[2], Matrix.Columns[0]);
    Cross.Columns[2] = HMM_Cross(Matrix.Columns[0], Matrix.Columns[1]);

    float InvDeterminant = 1.0f / HMM_DotV3(Cross.Columns[2], Matrix.Columns[2]);

    HMM_Mat3 Result;
    Result.Columns[0] = HMM_MulV3F(Cross.Columns[0], InvDeterminant);
    Result.Columns[1] = HMM_MulV3F(Cross.Columns[1], InvDeterminant);
    Result.Columns[2] = HMM_MulV3F(Cross.Columns[2], InvDeterminant);

    return HMM_TransposeM3(Result);
}

/*
 * 4x4 Matrices