1.1 --- a/src/vmathmat.h	Thu Apr 10 08:42:33 2014 +0300
     1.2 +++ b/src/vmathmat.h	Sat Apr 12 23:28:24 2014 +0300
     1.3 @@ -38,6 +38,12 @@
     1.4  
     1.5  	float *operator [](int idx) { return m[idx]; }
     1.6  	const float *operator [](int idx) const { return m[idx]; }
     1.7 +
     1.8 +	void transpose();
     1.9 +
    1.10 +	float determinant() const;
    1.11 +	Matrix4x4 adjoint() const;
    1.12 +	Matrix4x4 inverse() const;
    1.13  };
    1.14  
    1.15  inline Matrix4x4 operator *(const Matrix4x4 &a, const Matrix4x4 &b)
    1.16 @@ -52,6 +58,18 @@
    1.17  	return res;
    1.18  }
    1.19  
    1.20 +inline Matrix4x4 operator *(const Matrix4x4 &mat, float scalar)
    1.21 +{
    1.22 +	Matrix4x4 res;
    1.23 +
    1.24 +	for(int i=0; i<4; i++) {
    1.25 +		for(int j=0; j<4; j++) {
    1.26 +			res.m[i][j] = mat.m[i][j] * scalar;
    1.27 +		}
    1.28 +	}
    1.29 +	return res;
    1.30 +}
    1.31 +
    1.32  inline void Matrix4x4::set_identity()
    1.33  {
    1.34  	m[0][0] = m[1][1] = m[2][2] = m[3][3] = 1.0;
    1.35 @@ -112,5 +130,4 @@
    1.36  	*this = *this * m;
    1.37  }
    1.38  
    1.39 -
    1.40  #endif	// VMATH_MATRIX_H_