[Paraview-developers] Lights

[David E DeMarle]

I don't think so. ParaView uses vtkLightKit, for which all 5 of the lights
are camera relative, ie they are placed to illuminate the scene from
various directions but move with the camera.
It is "about right" for most things and has served us well for many years.

With the new light inspector panel you will find in master you can insert
scene (or other) lights if you have a need to do so and finely control them
as well.

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909 <(518)%20881-4909>

On Wed, Oct 11, 2017 at 2:24 PM, Scott, W Alan <wascott at sandia.gov> wrote:

> Dave Karelitz was showing me the can in ParaView, and I wonder if our
> lights model is incorrect.  Here is how to replicate:
>
>
>
>    - Open can.exo.  Apply.  Last frame.  Color by Solid Color.  Reset.
>    - Now, rotate the can.
>
>
>
> What you will notice is that the lights are not attached to the scene
> (i.e., stationary), but attached to the camera (i.e., moving).  This is
> really obvious if you turn on OSPRay and shadows.
>
>
>
> Isn’t this wrong?  The data should remain stationary, the lights (other
> than a headlight) should stay stationary, and the camera should move around
> the scene?
>
>
>
> Alan
>
>
>
> --------------------------------------------------------
>
> W. Alan Scott
>
> ParaView Support Manager
>
>
>
> SAIC
>
> Sandia National Laboratories, MS 0807
>
> Org 9326 - Building 880 A1-K
>
> (505) 284-0932   FAX (505) 284-5619
>
>
>
> The most exciting phrase to hear in science
>
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>
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