[yt-dev] OpenGL VR

Tue Mar 1 06:53:46 PST 2016

If you can make the new VR work with particle date like Gadget data I would
be happy. :)

On Tue, Mar 1, 2016 at 7:49 AM, Cameron Hummels <chummels at gmail.com> wrote:

> I think we should aim to have the VR interface and the OpenGL VR interface
> as similar as possible.  Otherwise, it is likely that users, both new and
> old, will get pretty confused when jumping back and forth between two
> pieces of code that offer similar functionality.
>
> On Tue, Mar 1, 2016 at 6:43 AM, Nathan Goldbaum <nathan12343 at gmail.com>
> wrote:
>
>> Right now it's somewhat different. There's a cookbook recipe in the pull
>> request you can look at to get an idea of how to set it up.
>>
>> In principle the details could be wrapped up to make the user-facing API
>> more similar.
>>
>>
>> On Tuesday, March 1, 2016, Cameron Hummels <chummels at gmail.com> wrote:
>>
>>> Does this have a similar API / interface to the standard VR?
>>>
>>> On Thu, Feb 25, 2016 at 9:45 AM, Nathan Goldbaum <nathan12343 at gmail.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> On Thu, Feb 25, 2016 at 11:40 AM, Matthew Turk <matthewturk at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi folks,
>>>>>
>>>>> Over the last little while, Kacper, Andrew and I have been picking up
>>>>> on some work started by Chuck Rozhon to implement OpenGL-based volume
>>>>> rendering of AMR data.  Kacper recorded a demo about a week ago,
>>>>> although it has improved considerably even since then:
>>>>>
>>>>> https://www.youtube.com/watch?v=yiiBDK1OJDo
>>>>>
>>>>> As of right now, it can do these things:
>>>>>
>>>>>  * Load up a "data source" (which can be all_data, but doesn't need to
>>>>> be)
>>>>>  * Utilize orthographic and perspective cameras
>>>>>  * Maximum intensity projection
>>>>>  * Integrated projection
>>>>>  * Apply colormaps to these two things, using two-pass rendering
>>>>>  * Trackball camera with keyboard shortcuts for moving around the
>>>>> domain
>>>>>  * Output camera information that is compatible with the software
>>>>> renderer (i.e., it can be used to get a sequence of camera positions)
>>>>>  * Save images out
>>>>>  * Preliminary support for color transfer function-based VR.  At
>>>>> present this only supports isosurfaces that are manually encoded.  It
>>>>> will soon take 1D textures from the CTF object.
>>>>>
>>>>> The system has been designed to be very modular, with extensible
>>>>> keyboard and mouse shortcuts.  Kacper has even been able to build a
>>>>> very lightweight Qt-based GUI around it (on BB as xarthisius/reason )
>>>>> without changing much/any of the internal-to-yt code.  Also, it works
>>>>> reasonably well even on fairly old graphics cards for reasonably sized
>>>>> data.  (And since it'll accept data objects that are cutouts, this
>>>>> means you could pull a sphere or block out of a gigantic dataset and
>>>>> use that.)
>>>>>
>>>>> Anyway, the reason I'm writing is that I'd like to bring it to
>>>>> people's attention sooner rather than later.  It'll need some testing,
>>>>> and we're also working to make it in a readily usable state as well.
>>>>> As of right now, before WIP gets removed from the pull request, we're
>>>>> going to add documentation (with notes that it is likely an unstable
>>>>> API) and hopefully a short screencast.  But before then, I would like
>>>>> to invite folks to either review the PR or to test it out.
>>>>>
>>>>> https://bitbucket.org/yt_analysis/yt/pull-requests/1598
>>>>>
>>>>> Note that this requires cyglfw3, which is accessible via pip.
>>>>>
>>>>
>>>> Also needs glfw3, which I installed via homebrew.
>>>>
>>>>
>>>>>
>>>>> I'm pretty excited about this, and the design we have been aiming for
>>>>> with the way it accepts objects and shaders should enable a lot of
>>>>> cool things to be done -- especially with respect to selecting data,
>>>>> presenting it, etc etc.
>>>>>
>>>>> I'd really like to see this be a part of 3.3.
>>>>>
>>>>> -Matt
>>>>> _______________________________________________
>>>>> yt-dev mailing list
>>>>> yt-dev at lists.spacepope.org
>>>>> http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org
>>>>>
>>>>
>>>>
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>>>>
>>>>
>>>
>>>
>>> --
>>> Cameron Hummels
>>> NSF Postdoctoral Fellow
>>> Department of Astronomy
>>> California Institute of Technology
>>> http://chummels.org
>>>
>>
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>>
>>
>
>
> --
> Cameron Hummels
> NSF Postdoctoral Fellow
> Department of Astronomy
> California Institute of Technology
> http://chummels.org
>
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>
>

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