[osg-users] bounding box issue
gianluca.natale at adstorino.it
Wed Sep 24 07:28:18 PDT 2008
Thank you Robert,
I will try.
From: osg-users-bounces at lists.openscenegraph.org
[mailto:osg-users-bounces at lists.openscenegraph.org] On Behalf Of Robert
Sent: mercoledì 24 settembre 2008 16.02
To: OpenSceneGraph Users
Subject: Re: [osg-users] bounding box issue
The OSG by defaults has small feature culling enabled, try disabling this:
viewer.getCamera()->getCullingMode() & ~
On Wed, Sep 24, 2008 at 2:52 PM, Gianluca Natale
<gianluca.natale at adstorino.it> wrote:
> Hi All.
> I have this very strange issue related to bounding boxes.
> I derived a class MyDrawable, from osg::Drawable.
> And I'm trying to make some experiments with it.
> I have a model containing two objects:
> - a cylinder, made by a bunch of points, defined as an instance of
> - an object made by just one vertex, defined as an instance of MyDrawable.
> When I try to draw the model, just the cylinder is shown.
> I implemented the method GetBoundingBox()in MyDrawable.
> So, obviously, it returns a void BB for the second drawable.
> Does it depend on the void BB?
> I mean, does OSG check the dimension of the BB of an object before
> drawing it, and discard the object if its BB, in screen coords, becomes
> some threshold (expressed in pixels)?
> I suspect this behavior because, if I try to artificially enlarge the BB
> the second drawable,
> once I zoom in I can see it on the screen. And disappear when I zoom out
> Thank you in advance.
> Gianluca Natale
> osg-users mailing list
> osg-users at lists.openscenegraph.org
osg-users mailing list
osg-users at lists.openscenegraph.org
No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.169 / Virus Database: 270.7.1/1687 - Release Date: 9/23/2008
More information about the osg-users