[yt-dev] Strange behavior on SlicePlots with Chombo data in yt-3.0

[Andrew Myers]

I found the problem - something got broken re: the filling of parent /
child grid information in the move from 2.X to 3.0. I'm checking in a fix
shortly.


On Thu, May 1, 2014 at 12:31 PM, Andrew Myers <atmyers2 at gmail.com> wrote:

> Hi Folks,
>
> I'm seeing a strange issue with Chombo data in yt-3.0. This is before any
> recent changes I made refactoring the frontend. Attached are two images of
> the same slice through the same dataset, one with yt-3.0 and one with
> yt-2.6. The image looks fine in yt-2.6, but there are clearly artifacts at
> the level boundaries for yt-3.0. What's strange is that, if I loop over all
> the grids and dump out the density, I get *exactly* the same answers for
> 3.0 and 2.6. It's almost like there is some kind of additive blending thing
> going on for the 3.0 slice plots, though.
>
> I'm a bit at a loss for where to look for this. Has anyone seen something
> like this before?
>
> Thanks,
> Andrew
>
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