Alan, It's optional since it doesn't necessarily work on all supported OpenGL drivers -- at least that used to be the case in OpenGL1 days. I need to check if that's still true.
On Mon, Apr 4, 2016 at 4:57 PM, Scott, W Alan <wasc...@sandia.gov> wrote: > OK, with all of the very good, simple explanations, I get it. Nice > feature. Why isn't it enabled by default? I.e., why do you need to load > the optional plugin? > > Here is an image I created with the help of Surface LIC. > > > Alan > > > > -----Original Message----- > From: Utkarsh Ayachit [mailto:utkarsh.ayac...@kitware.com] > Sent: Monday, April 04, 2016 12:34 PM > To: Moreland, Kenneth > Cc: Scott, W Alan; paraview@paraview.org > Subject: Re: [EXTERNAL] Re: [Paraview] Surface LIC plugin > > On Mon, Apr 4, 2016 at 2:31 PM, Moreland, Kenneth <kmo...@sandia.gov> > wrote: > > To specify further, I get the same results on my Mac. I do see the LIC > on the surface inside that hole. I was refering to the outside part of the > cylinder. But looking more closely at the data, I see that the velocity is > 0 there, so that would explain why the LIC is not showing anything there. > > Ah, yes, that's correct. That was changed a long time ago to just mask out > regions with zero velocity rather than showing noise, which I believe it > did in its initial incarnations. >
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