public static Vec4 operator *(Mat4 a, Vec4 v)
{
Vec4 result = new Vec4();
for (int i = 0; i < 4; ++i)
{
result[i] = Vec4.dot(a.row(i), v);
}
return(result);
}
public static Vec4 operator *(Vec4 v, Mat4 a)
{
Vec4 result = new Vec4();
for (int i = 0; i < 4; ++i)
{
result[i] = Vec4.dot(a.column(i), v);
}
return(result);
}
public static Mat4 operator *(Mat4 a, Mat4 b)
{
Mat4 mat = new Mat4();
for (int i = 0; i < 4; ++i)
{
for (int j = 0; j < 4; ++j)
{
mat[i, j] = Vec4.dot(a.row(i), b.column(j));
}
}
return(mat);
}
