[vtk-developers] Volume rendering update

[Aashish Chaudhary]

great, thanks.

- Aashish

On Wed, Feb 24, 2016 at 11:21 AM, David Gobbi <david.gobbi at gmail.com> wrote:
> On Wed, Feb 24, 2016 at 8:39 AM, Aashish Chaudhary
> <aashish.chaudhary at kitware.com> wrote:
>>
>>
>> > With the volume size at 1024x1024x1024, however, there was a wrap-around
>> > artifact.  I'm guessing that it was due either to memory limitations, or
>> > due
>> > to integer overflow.  Maybe a hardware issue, maybe the driver, hard to
>> > say
>> > when the data set itself is 2GB.  This is a Mac (10.9.5) with AMD
>> > FirePro
>> > D700 6GB, what datatypes does the mapper use for the buffers?
>>
>> this is interesting hard to say what's happening here but I didn't
>> encounter this issue before. Typically I would expect that you get GL
>> error or a CRASH.
>> Would be it possible to post your example code and data somewhere? Or
>> else, I will see if I can create a example myself.
>
>
> I have attached the example.  It uses the headsq "half" dataset and
> upsamples
> it to the desired resolution.  If you don't have the "half" dataset, you can
> use the
> headsq "quarter" dataset instead.
>
> Currently the code resamples the volume to 1024x1024x768 (line 38).
>
> Thanks,
>  - David



-- 
| Aashish Chaudhary
| Technical Leader
| Kitware Inc.
| http://www.kitware.com/company/team/chaudhary.html