d3dx8: patch1: Implement D3DXBoxBoundProbe

[H. Verbeet]

2008/7/28 H. Verbeet <hverbeet at gmail.com>:
> 2008/7/27 David Adam <david.adam.cnrs at gmail.com>:
>> +     ortho = D3DXVec3Dot(praydirection, &normal[i]);
>> +     if ( ortho )
>> +     {
>> +      t = D3DXVec3Dot(praydirection, &normal[i]) / ortho;
> This doesn't make much sense, t will always be close to zero this way.
>
That should read "one" rather than "zero" of course. (Thanks to
Michael Karcher for spotting that).