[vtkusers] would data type affect volume rendering?

[Aashish Chaudhary]

Hi Weiguang,


On Wed, Jan 13, 2016 at 10:03 AM, Weiguang guan <guanw at rhpcs.mcmaster.ca>
> wrote:
>
>> Hi VTK users,
>>
>> I have an integer volume dataset. I wonder if I convert it to other data
>> type (float, for example), would rendering of the new float volume be
>> different from that of the original integer volume in terms of speed and
>> quality?
>
>
It will affect the speed (at least the first frame) and may affect some
more if are close to the GPU memory. It may not affect the quality as much
other than the fact that now you are dealing with floats vs ints. I am
curious on why do you want to convert your int dataset into floats?


> My second question is that if I scaled down the data by dividing a scalar
>> during the conversion, would the rendering of new volume have poorer
>> quality? Thanks.
>>
>
I think Ken already answered this question. Also, can you define what do
you mean by a poor quality?

- Aashish

>
>> Best,
>> Weiguang
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>
>
>
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*| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
*| http://www.kitware.com/company/team/chaudhary.html
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