Re: [DirectPython] Matrix functions

[M. U. A. <ut...@al...>]

  ----- Original Message -----=20
  From: Heikki Salo=20
  To: 'M. Utku Altinkaya' ; dir...@li...=20
  Sent: Monday, February 26, 2007 1:30 PM
  Subject: RE: [DirectPython] Matrix functions






-------------------------------------------------------------------------=
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    From: dir...@li... =
[mailto:dir...@li...] On Behalf Of =
M. Utku Altinkaya
    Sent: 26. helmikuuta 2007 6:22
    To: dir...@li...
    Subject: [DirectPython] Matrix functions


    Hi,

    Is there any way I can use  D3DXMatrixTranslation, =
D3DXMatrixRotation etc. Also I was not able to find a Matrix class like =
d3dx.Vector, am I missing something or are these not implemented.=20

  It is possible to use all those functions if you have ctypes installed =
(Python 2.5 has it by default). You can use d3dx._d3dx9dll to determine =
which dll you should use. There are several tutorials for ctypes and =
"DirectX for comtypes" (see the SourceForge downloads) has few examples, =
too. Check the directx.util and Frame.SetTransform() for a simple =
example.

  D3DXMATRIX and other structs and functions are not currently exported =
because ctypes is not always available and people often use other =
structs instead (like NumPy matrices, arrays or raw memory). Basically =
D3DX matrix is just a block of memory containing 16 floats so if you =
"know" the alignment requirements and byte representation of a =
structure, you can pass other things to functions which excpect a =
D3DXMATRIX (altough this is little dangerous and not generally =
recommended).

  --
  Heikki Salo
Thanks Heikki, I willl go for native functions at the moment.