Enable Anti-Aliasing

[carlsonp]

This may be something easy that may improve the visualization. Based on this:

http://www.mail-archive.com/[email protected]/msg24993.html

It looks like enabling anti-aliasing in OSG is fairly straightforward. Perhaps something like:

traits = osg.GraphicsContext.Traits()
traits.samples = 4

I tried this but it was after the graphics was setup and it crashed. I think this will have to be done right when the graphics are initially setup and I'm not quite sure where that's at.

[rpavlik]

OSG isn't setting up the graphics contexts (plural - two per stereo display
at least, I think), VR Juggler is. I'm pretty sure I asked a question on
the VR Juggler mailing list and/or on their bug tracker - in any case, that
would be the way to go. (And yes, I agree that antialiasing should be used)

On Mon, Jul 23, 2012 at 12:10 PM, Patrick Carlson <
[email protected]

wrote:

This may be something easy that may improve the visualization. Based on
this:

http://www.mail-archive.com/[email protected]/msg24993.html

It looks like enabling anti-aliasing in OSG is fairly straightforward.
Perhaps something like:

traits = osg.GraphicsContext.Traits()
traits.samples = 4

I tried this but it was after the graphics was setup and it crashed. I
think this will have to be done right when the graphics are initially setup
and I'm not quite sure where that's at.

---

Reply to this email directly or view it on GitHub:
#93

Ryan Pavlik
HCI Graduate Student
Virtual Reality Applications Center
Iowa State University

[email protected]
http://academic.cleardefinition.com

[carlsonp]

In the frame buffer section of the JCONF, there appears to be something that may enable AA.

<num_sample_buffers>0</num_sample_buffers>
<num_samples>0</num_samples>

Changing the number of samples to 4 and 8 didn't seem to do much but actually testing this is difficult because it's such a minute adjustment. I don't think I can distinguish when it's on or off. :) I will read up to see if these are documented in VRJuggler.