[vtkusers] Using 3D textures on the Mac

[Dan White]

Hi David,

Maybe if you can file this issue as a bug report on the VTK bugs system,
and give the VTK folks a patch that would achieve the required  
changes to add the macros,
then the VTK folks might put it in CVS very quickly...?

BTW,
what changes do you need to make that work?

OSIRIX has been implementing a solution to this problem, since
3D textures work in OSIRIX , bit I didnt manage to get Antoinne's  
code working myself
as I was undoubtedly doing it wrong.

the vtk folks like bug reports with patches attached that will make  
the fix...

cheers
Dan


Begin forwarded message:

> Message: 10
> Date: Mon, 25 Sep 2006 16:31:31 -0400
> From: David Gobbi <dgobbi at atamai.com>
> Subject: [vtkusers] Using 3D textures on the Mac
> To: VTK Users <vtkusers at vtk.org>
> Message-ID: <45183CA3.3090605 at atamai.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi All,
>
> I'm having some trouble with vtkVolumeTextureMapper3D on
> the Mac.  When I try to use it, it gives the following error:
>
> vtkOpenGLVolumeTextureMapper3D (0x177e6000): required extensions not
> supported
>
> I checked to see which extension it couldn't find, and it was
> glTexImage3DEXT.  The silly thing is that Mac OS X 10.4
> supports glTexImage3D directly (i.e. not as an extension).
> When I changed the code to use glTexImage3D, it worked
> fine.
>
> I have two questions:
>
> 1) has any other Mac user seen the same issue with
>     vtkVolumeTextureMapper3D?
>
> 2) how would people feel if I added a couple macros to the
>     code so that, on OS X, it uses vtkgl::TexImage3D instead of
>     vtkgl::TexImage3DEXT?
>
>  - David
>

Dr. Daniel James White BSc. (Hons.) PhD
Bioimaging Coordinator
Nanoscience Centre and Department of Biological and Environmental  
Sciences
Division of Molecular Recognition
Ambiotica C242
PO Box 35
University of Jyväskylä
Jyväskylä
FIN 40014
Finland

+358 14 260 4183 (work)
+358 468102840 (mobile)
http://www.bioimagexd.org
http://www.chalkie.org.uk
dan at chalkie.org.uk
white at cc.jyu.fi