[Paraview] [EXTERNAL] Is anyone using the Extra Headlight in ParaView?

[David E DeMarle]

I wasn't aware of that bug. Thanks Alan we will try steer towards that as
well.




David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Thu, Aug 17, 2017 at 1:40 PM, Scott, W Alan <wascott at sandia.gov> wrote:

> I believe this is the bug Dave is working on: https://gitlab.kitware.com/
> paraview/paraview/issues/13963.  Dave – am I correct?
>
>
>
> Alan
>
>
>
> *From:* Timothy Dwight Dunn [mailto:timothy.dunn at colorado.edu]
> *Sent:* Thursday, August 17, 2017 11:34 AM
> *To:* Scott, W Alan <wascott at sandia.gov>
> *Cc:* DeMarle, David E. (External Contacts) <dave.demarle at kitware.com>;
> paraview at paraview.org
> *Subject:* Re: [Paraview] [EXTERNAL] Is anyone using the Extra Headlight
> in ParaView?
>
>
>
> Actually I was just talking about this in a Paraview tutorial I gave this
> morning at a conference. I would prefer to kill the hard coded light
> allowing the ability to add in general lights that the user can design and
> setup. In addition to save a conf out for the setup to be used as a
> default. I normally set things up in Paraview export what I need pop them
> in a CG app so that I can light them with so much more control but this is
> often difficult at best to impossible as the norm due to complexity of the
> scene. If we could get more and better light control, especially with
> Osprey then I'd be a very happy camper.
>
>
> Just to make really difficult make sure the lights interact with
> objects/layers as desired by the user, including volumeterics. This is a
> common thing to do in CG apps. Light objects A,B,C with light rig1, object
> D,E with light rig2 and object F with light rig3 .... The easiest way to do
> this is to have a panel for each light, or for paraview the gui controls
> with a check box list for each available layer which can
> activate/deactivate each light per layer. OK this makes sense in my head
> but I don't think I'm explaining it well do to conference exhaustion. If
> desired I can do a mock up gui layout image of what I'm trying to describe.
>
>
> Tim Dunn
> Scientific\Data Visualization & Visual Analytics for;
> CIRES - Earth Lab-Analytics Hub
> CU Research Computing (CURC)
>
> Center for Research Data and Digital Scholarship (CRDDS)
>
> tdunn at colorado.edu
>
>
>
> On Thu, Aug 17, 2017 at 11:16 AM, Scott, W Alan <wascott at sandia.gov>
> wrote:
>
> No objection here.  Only thought I have is that the lights may be setup by
> default slightly differently for 2d and 3d.  We may want a “headlight” for
> 2d.
>
>
>
>
>
> Alan
>
>
>
> *From:* ParaView [mailto:paraview-bounces at paraview.org] *On Behalf Of *David
> E DeMarle
> *Sent:* Thursday, August 17, 2017 7:35 AM
> *To:* paraview at paraview.org
> *Subject:* [EXTERNAL] [Paraview] Is anyone using the Extra Headlight in
> ParaView?
>
>
>
> By default, Paraview illuminates the scene with a vtkLightKit
> <http://www.vtk.org/doc/release/5.0/html/a01682.html>. You can however
> add an extra headlight. I am about to add a more general capability which
> lets you add any number and any kind of light, including the headlight.
> When I do that, the semi-hardcoded extra headlight becomes redundant. I
> would like to remove it to streamline both the code and the UI.
>
> Are there any objections to me doing that?
>
> David E DeMarle
> Kitware, Inc.
> Principal Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909 <(518)%20881-4909>
>
>
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