[vtkusers] Offscreen GPU Volume Rendering Mac OS X generates black images

[Chris Hafey]

Hi Aashish,
  Forgive my ignorance but I don't know much about osmesa or whether I am
using it.  I am using VTK as built by homebrew and don't see any options
related to osmesa.  I have not installed osmesa on the machine.  No errors
or warnings are issued on the console.

Chris

On Thu, Sep 25, 2014 at 6:46 AM, Aashish Chaudhary <
aashish.chaudhary at kitware.com> wrote:

> Hi Chris,
>
> Are you using osmesa for the offscreen rendering? Are you getting any
> error on the console?
>
> Thanks
>
>
> On Thu, Sep 25, 2014 at 7:32 AM, Chris Hafey <chafey at gmail.com> wrote:
>
>> VTK 6.1.0
>> Mac OS X Mavericks 10.9.5
>> Macbook Pro 2012 Retina with nVidia GeForce GT 650M 1024 MB
>>
>> My program uses VTK to do off screen volume rendering of medical images.
>> I suspect this is a bug in VTK and not my software because:
>> 1) GPURenderMode works fine on Windows (both in a VM running on same Mac
>> and on two other Windows 7 boxes with an nVidia GPUs)
>> 2) RayCastRenderMode works fine on Mac OS X
>> 3) TextureRenderMode works fine on Mac OS X
>>
>> I tried searching the mailing list and google and couldn't find
>> anything.  The rendering code is about as basic as it can be - it simply
>> sets the color, opacity, clip planes and matrix.  Any ideas on what I might
>> be doing wrong or how I can debug?
>>
>> Thanks
>>
>> Chris Hafey
>>
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>
>
> --
>
>
>
> *| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
> *| http://www.kitware.com/company/team/chaudhary.html
> <http://www.kitware.com/company/team/chaudhary.html>*
>
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