[vtkusers] Re: Using 3D textures on the Mac

[David Gobbi]

Hi Dan,

The VTK folks were kind enough to give me cvs access a few years ago,
I already committed the patch earlier this morning. Please do an update
from cvs and try it out when you have a chance.

Cheers,

 - David



Dan White wrote:
> 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
>
>
>