[vtkusers] Noise appears when extreme zooming in

[Patricio Palma C.]

Hi experts, does anybody has any idea of what could causing the issue
described in the previous email?
Recently I have noted that something similar occurs on 3D structures when
zooming in extremely to the structure and then rotating it. It appears
a kind of pattern to generate the shadow of the face but as you rotate the
structure the face begin to get noisy.

My current setup is VTK git development branch using OpenGL2 as rendering
backend. mesa 12.0.1 with AVX. I have also tried using mesa 11.2 and the
results are the same.

Thanks!
Regards
Patricio

El Monday, October 3, 2016, Patricio Palma C. <patriciop at gmail.com>
escribió:

> Dear Experts
>
> I'm using VTK 7.1 (latest Git version) and Mesa 12.0 with AVX. I have an
> application that display a 2D structure and some data on it. After zooming
> in a couple times in the same spot of the structure it begins to appear
> some noise over the 2D structure that increase after continuing zooming in.
>
> Is this a known issue? is there a way to solve/avoid this?
>
> I've attached some pictures showing how the noise appears while zooming
> in.
>
> [image: Inline image 2]
> [image: Inline image 3]
> [image: Inline image 5]
> [image: Inline image 6]
>
> --
> Patricio Palma Contreras
>


-- 
Patricio Palma Contreras
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20161017/2eb08fb1/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: step0.jpg
Type: image/jpeg
Size: 3073 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20161017/2eb08fb1/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: step2.jpg
Type: image/jpeg
Size: 5141 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20161017/2eb08fb1/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: step1.jpg
Type: image/jpeg
Size: 2217 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20161017/2eb08fb1/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: step3.jpg
Type: image/jpeg
Size: 8251 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20161017/2eb08fb1/attachment-0003.jpg>