I have done this before, and the results are interesting
but not high
quality due to differences in line/polygon rasterization.
Still a good
trick nonetheless.
-Paul
glPolygonOffset()?
Yes. This is actually what I used to do (not exactly as the original poster
described it):
-Original Message-
From: [EMAIL PROTECTED] [mailto:osg-users-
[EMAIL PROTECTED] On Behalf Of Paul Martz
Sent: Friday, February 15, 2008 8:20 AM
To: 'OpenSceneGraph Users'
Subject: Re: [osg-users] Modify Object After Picking
An extension to this, which I've read about but never
PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Romain
Blanchais
Sent: Friday, February 15, 2008 8:28 AM
To: OpenSceneGraph Users
Subject: [osg-users] Modify Object After Picking
Hello,
I would like to know if there is a simple way to show if an object is
selected ?
When I load a mesh from
To: OpenSceneGraph Users
Subject: [osg-users] Modify Object After Picking
Hello,
I would like to know if there is a simple way to show if an object is
selected ?
When I load a mesh from a osg file I use readNodeFile. When I pick the
object I get this osgNode return by thefunction readNodeFile but I don't
Gordon Tomlinson wrote:
Another old school Performer way, would be to double draw your node once in
normal mode and then a second time in wire frame mode
An extension to this, which I've read about but never implemented is, after
rendering your object, set ztest to equal, switch to wireframe,
Paul Martz wrote:
I have done this before, and the results are interesting but not high
quality due to differences in line/polygon rasterization. Still a good trick
nonetheless.
-Paul
Yeah, I've seen line rasterization on different graphics cards produce
different results, and sometimes
An extension to this, which I've read about but never
implemented is, after rendering your object, set ztest to
equal, switch to wireframe, set line thickness to 2 or 3
pixels, and render the backfaces of your object. You'll get a
rather funky, and fairly cheap, silhouette of your object.
Thank you for your answers,
About the osgFX Scribe effect, I found a problem in the archive mail list
that when you apply this effect the object disappear few frames. Do you know
if it's still the case ?
http://archive.netbsd.se/?ml=openscenegraph-usersa=2006-11m=2558289
Regards
__
Romain
Hello Romain,
I use the Scribe effect all the time (both at work and in my Masters
project) and I've never seen that particular issue.
But do you add the scribe effect in real time ?
Yes. Just be sure to do it in the update thread and make sure you don't
do it while traversing (to not
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