Re: [osg-users] Text Intersecting Earth
Hi Jeffrey, In the 2.x series of the OSG there is an osgfadetext example that uses a ClusterCullingCallback to cull the text when its on the far side of the earth, and disables depth test when its on the front side - this sounds similar to your needs. Robert. On 10/16/07, Jeffrey M Short [EMAIL PROTECTED] wrote: Hi, First off I'm using OSG 1.0. I am creating an application that has globe viewing features. The user can add an location object at a given Latitude, Longitude and Altitude. Then a 3d model and a text label is placed at that location. Both the model node and the text geode are placed under a MatrixTransform with the matrix set using the osg::EllipsoidModel-computeLocalToWorldTransformFromLatLongHeight. The text uses SCREEN_COORDS as the CharacterSizeMode and uses SCREEN as the AxisAlignment. The problem is that the text is intersects the earth when viewed from certain viewpoints. I would like to draw the earth first, then draw all the text, but only draw any particular text geode if and only if the location is not clipped by the Earth. My first attempt was as follow: I set the text geode depth test to osg::Depth::ALWAYS. I added a custom osg::Drawable::CullCallback to the text geodes. In the callback's virtual bool cull(osg::NodeVisitor* nv, osg::Drawable* drawable, osg::State*) const function I got the eye location and the text location in Earth Centered Cartesian Coordinates. Then if the dot product of these 2 position vectors is 0, return true so the text is culled. One problem I encountered here was getting the eye location from CullVisitor::getEyePoint(). This function seems to return the EyePoint in local coordinates. I tried using the osg::computeLocalToWorld(nv-getNodePath()) matrix to transform the EyePoint to Earth Centered coordinates but that didn't work. I had transform osg::Vec4(EyePoint, 1) by the inverse of osg::EllipoidModel::computeLocalToWorldTransformFromXYZ to get the job done. This method works but only when the camera is targeted at the center of the earth and it only works for locations with 0 altitude (imagine a location on the other side of the Earth from where you are viewing. If the location has a large enough altitude you could still see it). Any suggestions on a better way to accomplish this? Thanks Jeff Computer Sciences Corporation Registered Office: 2100 East Grand Avenue, El Segundo California 90245, USA Registered in USA No: C-489-59 This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind CSC to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Slave cameras in a view
Hi and thanks for the tip about where to look for code for the
projectionOffset. I now have a slave camera with the expected projection
offset next to the master camera.
One thing that I found out was that the slave camera is drawn one frame
after the master. Both cameras are drawn to the same graphics context. I can
easily see this in the seam between the two cameras by moving my scene up or
down at a constant speed. My slave camera is then drawn a at a constant
distance behind my master camera.
In the osgwindow example separate graphics contexts are used for master and
slave cameras. Is that the way it should be done? And then why?
If I set up the two cameras with different graphics contexts they draw
within the same frame (when I use the thread per context threading model).
Regards Karl
On 10/15/07, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Karl,
Have a look at the osgwindows example, or the
View::setUpViewAcrossScreens() source code in
src/osgViewer/Viewer.cpp.
On 10/10/07, Karl Heijdenberg [EMAIL PROTECTED] wrote:
Hi,
I'm trying to add two cameras to one View in compositeViewer.
The first camera is added as a master camera and the second as a slave
camera.
Frustums for the cameras:
master={-50, 0, -40, 40}
slave={0, 50, -40, 40}
For the first camera I set the projectionMatrix with
setProjectionMatrixAsFrustum.
How do I calculate the projectionOffset for the slave camera?
The offset is needed in call to addSlave(osg::Camera* camera,const
osg::Matrix projectionOffset, const osg::Matrix viewOffset, bool
useMastersSceneData=true);
I've also tried to set the reference frame to
ABSOLUTE_RF_INHERIT_VIEWPOINT
and then call the setProjectionMatrixAsFrustum for both cameras. This
test
ended up in a black scene for the second camera. Am I missing something?
Thanks, Karl
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Quaternion multiplication order
Hi Will,
The quaternion multiplication order has to be consistent with the rest
of the OSG i.e.
v' = v * M;
Now what is standard for other libraries, or even other communities is
an issue, but since libraries and communities all use their own
standards there is now way for the OSG to be consistent with all of
them - it has to stick with one and keep to it.
In the case of quats and matrix orderering one should have the same
between result from doing
Quat q1 = ..
Quat q2 = ..
Matrix m1 = osg::Matrix::rotate(q1) * osg::Matrix::rotate(q2);
Matrix m2 = osg::Matrix::rotate(q1*q2);
// if everything works m1 should equal m2;
Robert.
On 10/16/07, Will Dicharry [EMAIL PROTECTED] wrote:
Hello,
I noticed that the cross terms in osg's quaternion class binary
multiplication differ from the usual mathematical definition of quaternion
multiplication. The subtractions are opposite what they should be.
osg's implementation is
/// Binary multiply
inline const Quat operator*(const Quat rhs) const
{
return Quat( rhs._v[3]*_v[0] + rhs._v[0]*_v[3] + rhs._v[1]*_v[2] -
rhs._v[2]*_v[1],
rhs._v[3]*_v[1] - rhs._v[0]*_v[2] + rhs._v[1]*_v[3] + rhs._v[2]*_v[0],
rhs._v[3]*_v[2] + rhs._v[0]*_v[1] - rhs._v[1]*_v[0] + rhs._v[2]*_v[3],
rhs._v[3]*_v[3] - rhs._v[0]*_v[0] - rhs._v[1]*_v[1] - rhs._v[2]*_v[2] );
}
I believe that it should be:
/// Binary multiply
inline const Quat operator*(const Quat rhs) const
{
return Quat(
rhs._v[3]*_v[0] + rhs._v[0]*_v[3] - rhs._v[1]*_v[2] + rhs._v[2]*_v[1],
rhs._v[3]*_v[1] + rhs._v[0]*_v[2] + rhs._v[1]*_v[3] - rhs._v[2]*_v[0],
rhs._v[3]*_v[2] - rhs._v[0]*_v[1] + rhs._v[1]*_v[0] + rhs._v[2]*_v[3],
rhs._v[3]*_v[3] - rhs._v[0]*_v[0] - rhs._v[1]*_v[1] - rhs._v[2]*_v[2] );
}
The effect of this transposition is to force a pre-multiplication ordering
for the operation. I am wondering whether this is intentional or a mistake
and if it is intentional, why was it chosen to work this way. I searched
the osg mailing list archives, and I found a similar question posted in
2004, but I haven't been able to find a follow up to that message.
This causes problems in my application because I may receive orientation
data from a source that uses a different quaternion library using the
post-multiplication ordering, which is the standard way in the mathematical
community.
Thanks,
Will
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Slave cameras in a view
Hi Karl,
The master and slave cameras will be drawn in the same frame.
If you see a difference then it must be down to the propagation of the
settings from the master to the slave being out of sync. I don't know
how you set the master, perhaps you are setting it after the sync
point. The View::updateSlaves() method that does this sync is called
from within Viewer::updateTraversals() so perhaps you are setting the
master camera after this.
Robert.
On 10/17/07, Karl Heijdenberg [EMAIL PROTECTED] wrote:
Hi and thanks for the tip about where to look for code for the
projectionOffset. I now have a slave camera with the expected projection
offset next to the master camera.
One thing that I found out was that the slave camera is drawn one frame
after the master. Both cameras are drawn to the same graphics context. I can
easily see this in the seam between the two cameras by moving my scene up or
down at a constant speed. My slave camera is then drawn a at a constant
distance behind my master camera.
In the osgwindow example separate graphics contexts are used for master and
slave cameras. Is that the way it should be done? And then why?
If I set up the two cameras with different graphics contexts they draw
within the same frame (when I use the thread per context threading model).
Regards Karl
On 10/15/07, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Karl,
Have a look at the osgwindows example, or the
View::setUpViewAcrossScreens() source code in
src/osgViewer/Viewer.cpp.
On 10/10/07, Karl Heijdenberg [EMAIL PROTECTED] wrote:
Hi,
I'm trying to add two cameras to one View in compositeViewer.
The first camera is added as a master camera and the second as a slave
camera.
Frustums for the cameras:
master={-50, 0, -40, 40}
slave={0, 50, -40, 40}
For the first camera I set the projectionMatrix with
setProjectionMatrixAsFrustum.
How do I calculate the projectionOffset for the slave camera?
The offset is needed in call to addSlave(osg::Camera* camera,const
osg::Matrix projectionOffset, const osg::Matrix viewOffset, bool
useMastersSceneData=true);
I've also tried to set the reference frame to
ABSOLUTE_RF_INHERIT_VIEWPOINT
and then call the setProjectionMatrixAsFrustum for both cameras. This
test
ended up in a black scene for the second camera. Am I missing something?
Thanks, Karl
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Slave cameras in a view
Ah, thanks a lot :-)
Of course that was the reason! Thats also explains why it worked with
different contexts.
Thanks Karl
On 10/17/07, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Karl,
The master and slave cameras will be drawn in the same frame.
If you see a difference then it must be down to the propagation of the
settings from the master to the slave being out of sync. I don't know
how you set the master, perhaps you are setting it after the sync
point. The View::updateSlaves() method that does this sync is called
from within Viewer::updateTraversals() so perhaps you are setting the
master camera after this.
Robert.
On 10/17/07, Karl Heijdenberg [EMAIL PROTECTED] wrote:
Hi and thanks for the tip about where to look for code for the
projectionOffset. I now have a slave camera with the expected projection
offset next to the master camera.
One thing that I found out was that the slave camera is drawn one frame
after the master. Both cameras are drawn to the same graphics context. I
can
easily see this in the seam between the two cameras by moving my scene
up or
down at a constant speed. My slave camera is then drawn a at a constant
distance behind my master camera.
In the osgwindow example separate graphics contexts are used for master
and
slave cameras. Is that the way it should be done? And then why?
If I set up the two cameras with different graphics contexts they draw
within the same frame (when I use the thread per context threading
model).
Regards Karl
On 10/15/07, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Karl,
Have a look at the osgwindows example, or the
View::setUpViewAcrossScreens() source code in
src/osgViewer/Viewer.cpp.
On 10/10/07, Karl Heijdenberg [EMAIL PROTECTED] wrote:
Hi,
I'm trying to add two cameras to one View in compositeViewer.
The first camera is added as a master camera and the second as a
slave
camera.
Frustums for the cameras:
master={-50, 0, -40, 40}
slave={0, 50, -40, 40}
For the first camera I set the projectionMatrix with
setProjectionMatrixAsFrustum.
How do I calculate the projectionOffset for the slave camera?
The offset is needed in call to addSlave(osg::Camera* camera,const
osg::Matrix projectionOffset, const osg::Matrix viewOffset, bool
useMastersSceneData=true);
I've also tried to set the reference frame to
ABSOLUTE_RF_INHERIT_VIEWPOINT
and then call the setProjectionMatrixAsFrustum for both cameras.
This
test
ended up in a black scene for the second camera. Am I missing
something?
Thanks, Karl
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] under devcpp , can't find dll to run program
Hi all: I have compiled osg without example under devcpp(4.9.9.2) successfully,and get all dlls.(I downloaded the plugin's dlls and changed them to .a) but,i compiled the osgtext example and when run it, error popped that it can't find freetype6.dll (why need it?), but libosgdb_freetype.dll (all dlls) is in the same folder. someone can tell me what shall i do? thanks. and last, i am poor in english. wontor 10/15/07 [EMAIL PROTECTED] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] get elements of an osg::Matrixd instance
Hi, I'm trying to do some conversions between OpenSceneGraph and Java using JNI. One of them, Matrix2jobject, must be able to read the elements of osg::Matrix for copy pourposes. osg::Matrix API doesn't provide methods for reading elements of an osg::Matrix instance, and the atribute _mat[4][4] is protected. Anybody knows how to get this elements? Thanks in advance. Regards, Jordi. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] under devcpp , can't find dll to run program
Hi, El Wednesday 17 October 2007 12:06:18 王韬 escribió: I have compiled osg without example under devcpp(4.9.9.2) successfully,and get all dlls.(I downloaded the plugin's dlls and changed them to .a) You shouldn't have to rename any dll. Mingw gcc, the compiler that devcpp uses, is usually clever enough to link to a dll. In fact, a .a lib is in the mingw world either a static library or an import library, but never a dynamic library. but,i compiled the osgtext example and when run it, error popped that it can't find freetype6.dll (why need it?), but libosgdb_freetype.dll (all dlls) is in the same folder. You need freetype6.dll because libosgdb_freetype.dll is a plugin that deals with the Freetype integration into OSG, so the Freetype functionality is still found on its own dll. Make sure freetype6.dll is in your PATH or copy it beside libosgdb_freetype.dll. Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlt file causing crash in optimizer
Hi Robert -- If the hidden flag bit is set in an OpenFlight Face or Mesh record, the OpenFlight plugin handles this by setting the Geode NodeMask to zero. Not sure why this would cause a merge geometry optimization to crash, but maybe you've got some ideas on that? -Paul -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Wednesday, October 17, 2007 3:03 AM To: OpenSceneGraph Users Subject: Re: [osg-users] OpenFlt file causing crash in optimizer Hi Mark, I don't know of any hacks you could apply to fix this, in the end one will have to track down the bug be it in osgUtil::Optimizer or the OpenFlight plugin. Does osgviewer crash if you load the OpenFlight file directly? Would it be possible to make a model that reproduces the crash available so the community can assist in tracking down the bug? Robert. On 10/17/07, Mark Hurry [EMAIL PROTECTED] wrote: I have been trying to load an OpenFlight file created using TerraVista using osgViewer. However I have been getting a crash in the optimizer code in Optimizer::MergeGeodesVisitor::mergeGeodes at line geodeDuplicateMap[geode].push_back(geode); I finally managed to track down that in the OpenFlight format polygon attributes there is a flag for Hidden polygon. If this flag is set it causes a crash, if it is not set then the model loads. Is this a known problem? And if so is there a work around? Obviously it is not feasable to go into each OpenFlight file and manually check each polygon to see if the Hidden polygon flag has been set. Thanks in advance Mark No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.13/1074 - Release Date: 16-Oct-07 2:14 PM ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OpenFlt file causing crash in optimizer
Hi Robert, Not sure what you mean by directly. I have set it up as command line argument in VS2005. I have also tried osgviewerMFC with the same results. I have reduced the OpenFlight model down to about 6 polys that still produces the same crash, so what’s the best way of making it available to everyone? I’ll carry on investiagting more to see if I can narrow the problem down as this is a show stopper for me Cheers Mark Hi Mark, I don't know of any hacks you could apply to fix this, in the end one will have to track down the bug be it in osgUtil::Optimizer or the OpenFlight plugin. Does osgviewer crash if you load the OpenFlight file directly? Would it be possible to make a model that reproduces the crash available so the community can assist in tracking down the bug? Robert. On 10/17/07, Mark Hurry HYPERLINK http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.orgm ark at dwork.com wrote: I have been trying to load an OpenFlight file created using TerraVista using osgViewer. However I have been getting a crash in the optimizer code in Optimizer::MergeGeodesVisitor::mergeGeodes at line geodeDuplicateMap[geode].push_back(geode); I finally managed to track down that in the OpenFlight format polygon attributes there is a flag for Hidden polygon. If this flag is set it causes a crash, if it is not set then the model loads. Is this a known problem? And if so is there a work around? Obviously it is not feasable to go into each OpenFlight file and manually check each polygon to see if the Hidden polygon flag has been set. Thanks in advance Mark No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.13/1074 - Release Date: 16-Oct-07 2:14 PM ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlt file causing crash in optimizer
Hi Mark, A six poly file would be ideal to test against, just post it as an attachment to an osg-users email if the file is small. Just to be precise, does: osgviewer myfile.flt Fail? Robert. On 10/17/07, Mark Hurry [EMAIL PROTECTED] wrote: Hi Robert, Not sure what you mean by directly. I have set it up as command line argument in VS2005. I have also tried osgviewerMFC with the same results. I have reduced the OpenFlight model down to about 6 polys that still produces the same crash, so what's the best way of making it available to everyone? I'll carry on investiagting more to see if I can narrow the problem down as this is a show stopper for me Cheers Mark Hi Mark, I don't know of any hacks you could apply to fix this, in the end one will have to track down the bug be it in osgUtil::Optimizer or the OpenFlight plugin. Does osgviewer crash if you load the OpenFlight file directly? Would it be possible to make a model that reproduces the crash available so the community can assist in tracking down the bug? Robert. On 10/17/07, Mark Hurry mark at dwork.com wrote: I have been trying to load an OpenFlight file created using TerraVista using osgViewer. However I have been getting a crash in the optimizer code in Optimizer::MergeGeodesVisitor::mergeGeodes at line geodeDuplicateMap[geode].push_back(geode); I finally managed to track down that in the OpenFlight format polygon attributes there is a flag for Hidden polygon. If this flag is set it causes a crash, if it is not set then the model loads. Is this a known problem? And if so is there a work around? Obviously it is not feasable to go into each OpenFlight file and manually check each polygon to see if the Hidden polygon flag has been set. Thanks in advance Mark No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.13/1074 - Release Date: 16-Oct-07 2:14 PM ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenFlt file causing crash in optimizer
Not sure why this would cause a merge geometry optimization to crash, but maybe you've got some ideas on that? No ideas I'm afraid. It'd also be interesting to see if the following fails: 1. Load the FLT file, but specify the preserveFace option, which causes the FLT loader to not run the Optimizer. App now has an unoptimized scene graph. 2. Write this scene graph out as an .osg file. 3. Load the .osg file into osgviewer, which will run the Optimizer. If this fails, it leaves OpenFlight and the FLT loader completely out of the picture. Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] double precision in position values of objects
Fuat ULUBATLI wrote on Wednesday, October 17, 2007 6:54 AM: hi all, i want to set the x,y,z of 3D objects as double since float is not sufficient for me due to large position values. how can i do this? thanks in advance... fuat OpenGL generally does not support double precision, so the best way to do this is place a transform (such as osg::MatrixTransform) above the 3D object that positions it, and use floats in the object's geometry. -- Bryan Thrall FlightSafety International [EMAIL PROTECTED] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] RenderingHint vs binNumber(RenderBinDetails)
Hi all,
Generalizing my 3 pass logic on a group of models, it seems I don't get the
expected result.
Let me ask a question. In the following case :
am I correct if I assume the rendering order will be A1-A2-...-An-B-A1(with B
context)-A2(with B context)-...-An(with B context)-C-A1(with C context)-A2(with
C context)-...-An(with C context) , in each {A1-A2-...-An} sequence, precise
order being unassumable ?
By with B context I mean having stateset attributes inherited from B
stateset ones.
If not, what would be a correct way to give rise to this render order ??
Thanks for any teaching about this.
--
Christophe Médard
Société OKTAL (http://www.oktal.fr)
2 impasse Boudeville
31100 Toulouse (France)
Tél. : (+33) 5 62 11 50 10
Fax : (+33) 5 62 11 50 29
- Original Message -
From: Christophe Medard
To: OpenSceneGraph Users
Sent: Friday, October 05, 2007 3:55 PM
Subject: Re: [osg-users] RenderingHint vs binNumber(RenderBinDetails)
Yop,
All right, Tim's right.
So to conclude :
- setRenderingHint is just a shortcut for setRenderBinDetails, it allows not to
have to specify the name of bin type, and _renderingHint is useless (for those
making inquiries on the OSG source)
- indeed, the binNumber is the draw order number against other children in the
parent Group, evaluated in a left-first traversall logic.
The draw order for this case (3 pass on an geode) is A-B-C. It works well, one
just have to beware of z-fighting, through the reuse of the depth buffer of the
1st pass (via setAttributeAndModes(new
osg::Depth(osg::Depth::EQUAL,0.0,1.0,false) for example).
|
osg::Group Root
|
---
| | |
| | |
|osg::Group B osg::Group C
|[binNumber = 20] [binNumber = 30]
| ||
--
|
osg::Geode A
[binNumber = 15]
Thanks to all.
Question_about_bins.jpg___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multisample problem
Hi Panagiotis
I attach a osgviewer based example of use of multisample
You can switch on/off multisample with the key 'm'
Cheers
David
2007/10/14, Panagiotis Papadakos [EMAIL PROTECTED]:
Hi David
On Tue, 9 Oct 2007, David Callu wrote:
Hi Panagiotis
2007/10/6, Panagiotis Papadakos [EMAIL PROTECTED]:
Hi.
I want to add an option of using multisampling for my app. So I have
setup
DisplaySettings with setNumMultiSamples(4). The user is able to
enable/disable multisampling as he feels in the app, by
enabling/disabling
the GL_MULTISAMPLE_ARB in the root stateset. My problem now is that
initially I want to have multisampling disabled, which I can't figure
out
how to do. I have tried setting GL_MULTISAMPLE_ARB OFF in the root
stateset, but this doesn't seem to help. Any ideas?
This seem to be the good method.
you can try
1) do root-getOrCreateStateSet()-setMode(GLL_MULTISAMPLE_ARB,
osg::StateAttribut::OFF | osg::StateAttribut::OVERRIDE)
This is what I've been trying. More specifically
root-getOrCreateStateSet()-setMode(GL_MULTISAMPLE_ARB,
osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED |
osg::StateAttribute::OVERRIDE);
after the viewer has been realized.
2) I think that number of sample is define when the OpenGL context is
created
so recreate a context on each switch of the number os sample you
want.
Why should I recreate a context? I think I should be able to
enable/disable Multisampling with setting the state mode ON/OFF.
How did you know that multisample is enabling/disabling.
Did you look the render ?
Yep, that is the case. I saw the render.
Did you do a request to OpenGL about multisample ?
David
Thanks
Panagiotis Papadakos
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial applications,
* as long as this copyright notice is maintained.
*
* This application is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include osgDB/ReadFile
#include osgUtil/Optimizer
#include osg/CoordinateSystemNode
#include osg/Multisample
#include osg/Switch
#include osgText/Text
#include osgViewer/Viewer
#include osgViewer/ViewerEventHandlers
#include osgGA/TrackballManipulator
#include osgGA/FlightManipulator
#include osgGA/DriveManipulator
#include osgGA/KeySwitchMatrixManipulator
#include osgGA/StateSetManipulator
#include osgGA/AnimationPathManipulator
#include osgGA/TerrainManipulator
#include iostream
class SwitchMultisampleHandler : public osgGA::GUIEventHandler
{
public:
SwitchMultisampleHandler(osg::StateSet * ss) :
_useMultisample(false), _ss(ss)
{
_ss-setAttributeAndModes(new osg::Multisample, osg::StateAttribute::ON);
_ss-setMode(GL_MULTISAMPLE, osg::StateAttribute::OFF | osg::StateAttribute::OVERRIDE);
}
bool handle(const osgGA::GUIEventAdapter ea, osgGA::GUIActionAdapter )
{
if (ea.getHandled())
return false;
switch (ea.getEventType())
{
case (osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey() == 'm')
{
if (_useMultisample == false)
{
_ss-setMode(GL_MULTISAMPLE, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
_useMultisample = true;
}
else
{
_ss-setMode(GL_MULTISAMPLE, osg::StateAttribute::OFF | osg::StateAttribute::OVERRIDE);
_useMultisample = false;
}
return true;
}
break;
}
default:
break;
}
return false;
}
private:
bool _useMultisample;
osg::ref_ptrosg::StateSet _ss;
};
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(argc,argv);
arguments.getApplicationUsage()-setApplicationName(arguments.getApplicationName());
arguments.getApplicationUsage()-setDescription(arguments.getApplicationName()+ is the standard OpenSceneGraph example which loads and visualises 3d models.);
[osg-users] osgCal and osg::Fog
Hello, I am using osg to render a scene, and osgCal to display some character models. When I try to use osg::Fog in the scene, everything works fine except for characters rendered by osgCal: They seem to get fogged only when very far (lod?) but they aren't fogged at all when they are near. Does anyone have any pointer to why this doesn't work, or where I should be looking at? The stateset has been set with: setAttribute( fog /* an osg::Fog */, osg::StateAttribute::ON ); setMode( GL_FOG, osg::StateAttribute::ON ); on the osg::Group containing the character I try to render. Setting the mode to OVERRIDE or PROTECTED doesn't change the behaviour. I think I must set a FOG shader flag in the osgCal core model but it doesn't seem to be retrieved from the stateset. I'm a little lost in the osgCal code, but I can't find a way to set the shader_flag_fog there. HwMeshStateSetCache::createHwMeshStateSet seems not to read it from the stateset? Thanks in advance for any pointer, Laurent Di Cesare. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multisample problem
Hi David. Thanks for your time and the example. I have the same problem with your example as I have with my own code. Running ./a.out --samples 4 saved_model.osg, uses anti-aliasing when the application starts although SwitchMultisampleHandler disables it in constructor. Pressing 2 times 'm' disables it, as it also happens with my app. Panagiotis Papadakos On Wed, 17 Oct 2007, David Callu wrote: Hi Panagiotis I attach a osgviewer based example of use of multisample You can switch on/off multisample with the key 'm' Cheers David 2007/10/14, Panagiotis Papadakos [EMAIL PROTECTED]: Hi David On Tue, 9 Oct 2007, David Callu wrote: Hi Panagiotis 2007/10/6, Panagiotis Papadakos [EMAIL PROTECTED]: Hi. I want to add an option of using multisampling for my app. So I have setup DisplaySettings with setNumMultiSamples(4). The user is able to enable/disable multisampling as he feels in the app, by enabling/disabling the GL_MULTISAMPLE_ARB in the root stateset. My problem now is that initially I want to have multisampling disabled, which I can't figure out how to do. I have tried setting GL_MULTISAMPLE_ARB OFF in the root stateset, but this doesn't seem to help. Any ideas? This seem to be the good method. you can try 1) do root-getOrCreateStateSet()-setMode(GLL_MULTISAMPLE_ARB, osg::StateAttribut::OFF | osg::StateAttribut::OVERRIDE) This is what I've been trying. More specifically root-getOrCreateStateSet()-setMode(GL_MULTISAMPLE_ARB, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED | osg::StateAttribute::OVERRIDE); after the viewer has been realized. 2) I think that number of sample is define when the OpenGL context is created so recreate a context on each switch of the number os sample you want. Why should I recreate a context? I think I should be able to enable/disable Multisampling with setting the state mode ON/OFF. How did you know that multisample is enabling/disabling. Did you look the render ? Yep, that is the case. I saw the render. Did you do a request to OpenGL about multisample ? David Thanks Panagiotis Papadakos ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multipass shading, black texture coming out of the first pass
Hello Swen, in the last few days i've figured out, that i have a bug in my multipass soluiton. For this bug, i've actually no idea how i could solve the problem The problem occurs with the execution of the passes. Each pass holds an osg::StateSet where the Shaders and textures are bound for execution. Actually this StateSet must be an element of the SceneGraph for execution. This is not the problem, if the Shader is an object refered shader like a dot3 Shader. But the dilemma is, that you don't have allways object refered shaders, sometimes the shader is not part of an object (Blur, HDR ect.), which will actually not be executed. The other problem of the dilemma occurs, if you got more shaders which are object refered (p.e. dot3, phong lighting). If you bind more than one state to the object, only the last state will be executed ... One Solution may be a render quad for each pass, which is executed (rendered) explicit outside the graph, to force the execution. But i don't have a solution how this could be realized... I think this could be a part of your issue. Are you sure, that your first shader is executed? Best regards, Christian Swen Walkowski wrote: Hello all, first I am sorry that I start a new thread, but I do not have the old mail here that I can answer it. That thread refer to: [osg-users] Multipassshading in OSG v1.2 I done a look in the source code from Christian, with that code I tried to extend my shader for a static 2 pass shader. That is the shader class is in the attachmend (Shader.cpp). In the attachmend you will see the output (2Pass.JPG). You just will see the the point (right upper corner) but not the live video stream from the camera and the output from the discard shader. I try to use osgart. The first texture, who the constructor gets and put it to the first shader pass is the live picture. What I get out of that pass I try to put in the second pass and than display it. So maybe someone can help me! Thanks Swen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Rendering to a texture only
Sorry Robert, this is still unclear. Is there one option or two you are suggesting is possible? 1) A viewer setup as embedded using a pbuffer context with a normal camera 2) A viewer setup as embedded using pbuffer context and an FBO camera Obviously I'd like to use an FBO, less coding than copying image buffers around, plus I already have it working, albeit in a window. Thanks again -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Tuesday, October 16, 2007 2:36 PM To: OpenSceneGraph Users Subject: Re: Rendering to a texture only On 10/16/07, Williams Steven-ASW036 [EMAIL PROTECTED] wrote: Is pBuffers the only solve or can I use my current FBO code? You need a graphics context to create a FBO. I currently have an FBO camera texture running as per the osgViewer example, but I'm using the viewer to kick off rendering. Ideally I want the non-existant rootnode-render() then use the image attached to my FBO camera and remove viewer completely. Create a pbuffer, make current on it and then a viewer setup as a embedded view as per the osgviewersdl/glut examples then dispatch the frames required, then cleanup. See the osgcamera/osgwindows examples to see how to create graphics contexts using Traits. For pbuffer just set the relevant traits parameter. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multisample problem
Ok I have a not really clean fix but this work. I will investigate more on this issue. Keep you informed David 2007/10/17, Panagiotis Papadakos [EMAIL PROTECTED]: Hi David. Thanks for your time and the example. I have the same problem with your example as I have with my own code. Running ./a.out --samples 4 saved_model.osg, uses anti-aliasing when the application starts although SwitchMultisampleHandler disables it in constructor. Pressing 2 times 'm' disables it, as it also happens with my app. Panagiotis Papadakos On Wed, 17 Oct 2007, David Callu wrote: Hi Panagiotis I attach a osgviewer based example of use of multisample You can switch on/off multisample with the key 'm' Cheers David 2007/10/14, Panagiotis Papadakos [EMAIL PROTECTED]: Hi David On Tue, 9 Oct 2007, David Callu wrote: Hi Panagiotis 2007/10/6, Panagiotis Papadakos [EMAIL PROTECTED]: Hi. I want to add an option of using multisampling for my app. So I have setup DisplaySettings with setNumMultiSamples(4). The user is able to enable/disable multisampling as he feels in the app, by enabling/disabling the GL_MULTISAMPLE_ARB in the root stateset. My problem now is that initially I want to have multisampling disabled, which I can't figure out how to do. I have tried setting GL_MULTISAMPLE_ARB OFF in the root stateset, but this doesn't seem to help. Any ideas? This seem to be the good method. you can try 1) do root-getOrCreateStateSet()-setMode(GLL_MULTISAMPLE_ARB, osg::StateAttribut::OFF | osg::StateAttribut::OVERRIDE) This is what I've been trying. More specifically root-getOrCreateStateSet()-setMode(GL_MULTISAMPLE_ARB, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED | osg::StateAttribute::OVERRIDE); after the viewer has been realized. 2) I think that number of sample is define when the OpenGL context is created so recreate a context on each switch of the number os sample you want. Why should I recreate a context? I think I should be able to enable/disable Multisampling with setting the state mode ON/OFF. How did you know that multisample is enabling/disabling. Did you look the render ? Yep, that is the case. I saw the render. Did you do a request to OpenGL about multisample ? David Thanks Panagiotis Papadakos ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multisample problem
oups forget the file ...
2007/10/17, David Callu [EMAIL PROTECTED]:
Ok I have a not really clean fix but this work.
I will investigate more on this issue.
Keep you informed
David
2007/10/17, Panagiotis Papadakos [EMAIL PROTECTED]:
Hi David. Thanks for your time and the example.
I have the same problem with your example as I have with my own code.
Running ./a.out --samples 4 saved_model.osg, uses anti-aliasing when
the
application starts although SwitchMultisampleHandler disables it in
constructor. Pressing 2 times 'm' disables it, as it also happens with
my
app.
Panagiotis Papadakos
On Wed, 17 Oct 2007, David Callu wrote:
Hi Panagiotis
I attach a osgviewer based example of use of multisample
You can switch on/off multisample with the key 'm'
Cheers
David
2007/10/14, Panagiotis Papadakos [EMAIL PROTECTED]:
Hi David
On Tue, 9 Oct 2007, David Callu wrote:
Hi Panagiotis
2007/10/6, Panagiotis Papadakos [EMAIL PROTECTED]:
Hi.
I want to add an option of using multisampling for my app. So I
have
setup
DisplaySettings with setNumMultiSamples(4). The user is able to
enable/disable multisampling as he feels in the app, by
enabling/disabling
the GL_MULTISAMPLE_ARB in the root stateset. My problem now is that
initially I want to have multisampling disabled, which I can't
figure
out
how to do. I have tried setting GL_MULTISAMPLE_ARB OFF in the root
stateset, but this doesn't seem to help. Any ideas?
This seem to be the good method.
you can try
1) do root-getOrCreateStateSet()-setMode(GLL_MULTISAMPLE_ARB,
osg::StateAttribut::OFF | osg::StateAttribut::OVERRIDE)
This is what I've been trying. More specifically
root-getOrCreateStateSet()-setMode(GL_MULTISAMPLE_ARB,
osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED |
osg::StateAttribute::OVERRIDE);
after the viewer has been realized.
2) I think that number of sample is define when the OpenGL context
is
created
so recreate a context on each switch of the number os sample you
want.
Why should I recreate a context? I think I should be able to
enable/disable Multisampling with setting the state mode ON/OFF.
How did you know that multisample is enabling/disabling.
Did you look the render ?
Yep, that is the case. I saw the render.
Did you do a request to OpenGL about multisample ?
David
Thanks
Panagiotis Papadakos
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial applications,
* as long as this copyright notice is maintained.
*
* This application is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include osgDB/ReadFile
#include osgUtil/Optimizer
#include osg/CoordinateSystemNode
#include osg/Multisample
#include osg/Switch
#include osgText/Text
#include osgViewer/Viewer
#include osgViewer/ViewerEventHandlers
#include osgGA/TrackballManipulator
#include osgGA/FlightManipulator
#include osgGA/DriveManipulator
#include osgGA/KeySwitchMatrixManipulator
#include osgGA/StateSetManipulator
#include osgGA/AnimationPathManipulator
#include osgGA/TerrainManipulator
#include iostream
class SwitchMultisampleHandler : public osgGA::GUIEventHandler
{
public:
SwitchMultisampleHandler(osg::StateSet * ss) :
_useMultisample(false), _ss(ss)
{
_ss-setAttributeAndModes(new osg::Multisample, osg::StateAttribute::ON);
_ss-setMode(GL_MULTISAMPLE, osg::StateAttribute::OFF | osg::StateAttribute::OVERRIDE);
}
bool handle(const osgGA::GUIEventAdapter ea, osgGA::GUIActionAdapter )
{
if (ea.getHandled())
return false;
switch (ea.getEventType())
{
case (osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey() == 'm')
{
if (_useMultisample == false)
{
_ss-setMode(GL_MULTISAMPLE, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
_useMultisample = true;
}
else
Re: [osg-users] (solved)Re: RTT and stereo (revisited)...
Nice. thank you. That was EXACTLY it.Setting the camera's to have colormasks all true did the trick. I would never have found it... ml On Oct 17, 2007, at 1:21 AM, Robert Osfield wrote: Hi Mike, With 2.x could you try: osgprerender cow.osg --stereo HORZONTAL_SPLIT And then: osgprerender cow.osg --window --stereo The two tests suggest to me that the basic mechanics are working in 2.x just fine, but the anaglyphic stereo set up is being affected by the ColorMask state being inherited down to the RTT camera. Setting a local ColorMask to enable all colours on the RTT Camera might be a be way of protecting it from being affected by the inherited ColorMask settings used to the do the anaglyphic stereo. Robert. On 10/16/07, Mike Logan [EMAIL PROTECTED] wrote: I don't disagree with any of that, but I don't think it fixes anything I want to do (besides I did all that already). Maybe its constructive to ask the simple question: Why doesn't the following command work? osgprerender --stereo cessna.osg In 1.2, the left eye (red cessna) is stuck and doesn't update, the right eye(blue) spins around. In 2.x, the left eye (red cessna) doesn't even show up. The waving flag is certainly in stereo and working fine. But the cessna isn't stereo-ized in either version. And my claim is that adding a second CameraNode(1.2) or Camera(2.x) with masking, or whatever, won't help. I won't harass you anymore since I'm not a paying customer 8-) Just wanted to explain my thinking. ml On Oct 16, 2007, at 11:21 AM, Robert Osfield wrote: Hi Mike, I haven't followed this thread closely, so not clear on what the exact problem is, what you've tried and where you are at. Will provide some general comments to see if they help clarify things on how the OSG does things. If you are doing stereo you may or may not one RTT camera and associated texture for each eye. If you wish to have two textures one for each eye then you'll need to have two osg::Camera one for each eye and use the NodeMask on each of these cameras to select which camera you want to use for each eye. Robert. On 10/16/07, Mike Logan [EMAIL PROTECTED] wrote: If anyone cares, I had to drop back to OSG1.2 to make some progress. I now have 2 CameraNodes, 2 textures, 2 polys being textured and everything works on the first frame only. Nice stereo picture on a stereo canvas.. instead of a flat picture on a stereo canvas.. But I can only get ONE of the cameranodes to update its texture after the first frame. The matrix of the both cameranodes is definitely changing. But only one texture in the final display updates (right eye). When someone, generally, has 1 RTT cameranodes rendering for one window, is there something special that needs to be done? thanks for reading, ml On Oct 11, 2007, at 9:58 AM, Mike Logan wrote: Thanks for the suggestion Farshid, But I don't know how to get the SceneView. Isn't the SceneView now hidden in SVN? as part of the camera's renderer? I'm already setting camera-setCullMaskLeft( 0x1 ); camera-setCullMaskRight( 0x2 ); for each of the 2 prerender cameras. Shouldn't that be sufficient? The main camera is already stereo from what I can tell. Its the final texture that isn't stereo. To be sure, I got the main camera from the viewer and set it's left/right cull masks.. I'm still not seeing two cessnas. ml On Oct 10, 2007, at 3:54 PM, Farshid Lashkari wrote: Hi Mike You need to set the left/right cull masks on the SceneView. Then set the node masks for each camera to the appropriate cull mask. I've successfully used this technique to render camera nodes in stereo. -Farshid On 10/10/07, Mike Logan [EMAIL PROTECTED] wrote: ahem.. Looking for some free debugging.. 8) I've included a very slimmed down modified osgprerender.cpp example with a second camera added in an attempt to get stereo-rtt working.. I've discovered that the RenderImplementation = osg::Camera::SEPERATE_WINDOW is a very useful tool (run with the --window option). It seems to show that the program is basically working in stereo but the final main window only shows the right eye. I've tried this on OSX (anaglyph) and Linux (quad-buffer) and they perform roughtly the same. (OSG-SVN 2.2.10+ or so) Anyone done this already with the SVN version? See anything obvious? ml ugly code removed ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users- openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users- openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users- openscenegraph.org
[osg-users] EyePoint from CullVisitor
Hello First off I'm using OSG 1.0. I am deriving a class from osg::Drawable::CullCallback. I'm overloading the cull function [virtual bool cull(osg::NodeVisitor* nv, osg::Drawable* drawable, osg::State*) const]. I am trying to get the eye location in World Coordinates. It seems as though CullVisitor::getEyePoint() returns the eye location in Local Coords. I've tried tried multiplying by osg::computeLocalToWorld(nv-getNodePath()) and osg::computeWorldToLocal(nv-getNodePath()), but I've had no success. In some cases, I already know that my drawable has one MatrixTransform above it so I calculate the following: osg::Matrixd::inverse(xfrom-getMatrix()) * osg::Vec4d(nv-getEyePoint(), 1). This works. But it won't work for cases when there's more than 1 Transfrom on the nodepath. That's why I was trying osg::computeLocalToWorld. The best thing would be to get the eye point in world coordinates directly without having to calculate it repeatedly from local coordinates in each drawable's CullCallback. Any suggestions? Also I want to reply to some response made to other questions I have submitted. How do I do that? Thank you, Jeff Computer Sciences Corporation Registered Office: 2100 East Grand Avenue, El Segundo California 90245, USA Registered in USA No: C-489-59 This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind CSC to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgviewerQT + StatsHandler
Poirier, Guillaume wrote: Hello ! Sorry if this was already discussed... I checked on the gmane archive and could not find anything on the topic :( Is the osgviewerQT supposed to work with the StatsHandler ? Most viewer examples use it except osgviewerQT.cpp. When I do ViewerQT* viewerWindow = new ViewerQT; viewerWindow-addEventHandler(new osgViewer::StatsHandler); and press 's' I get a Stats report: printout but see nothing in the window. The same was happening to osgviewerWX. It happens because WX passes 'S' instead of 's' to osg in OnKeyUp and OnKeyDown, ie. the uppercase lettere is always passed. I think the same is happening in Qt. Hope it helps mario Cheers ! bill ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Ing. Mario Valle Visualization Group | http://www.cscs.ch/~mvalle Swiss National Supercomputing Centre (CSCS) | Tel: +41 (91) 610.82.60 v. Cantonale Galleria 2, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] OpenFlt file causing crash in optimizer
Hi Robert/Paul In answer to various questions Yes osgviewer flight1_0.flt (see attachment) causes the crash. The file is only 6 polygons. If I reduce the number of polys or change the structure, then the results become unpredicatble, sometimes working other times not. It seems to be the last polygon in the model – f801 that seems to cause the problem. I went through the stages suggested by Paul 1) specifying the preserveFace=1 allowed the file to load successfully 2) I saved the file as a .osg 3) I loaded the file flight1_0.osg and it loaded successfully So I assume from Paul’s comments that the best place to look for a problem would be in the FLT loader? Thanks Mark Not sure why this would cause a merge geometry optimization to crash, but maybe you've got some ideas on that? No ideas I'm afraid. It'd also be interesting to see if the following fails: 1. Load the FLT file, but specify the preserveFace option, which causes the FLT loader to not run the Optimizer. App now has an unoptimized scene graph. 2. Write this scene graph out as an .osg file. 3. Load the .osg file into osgviewer, which will run the Optimizer. If this fails, it leaves OpenFlight and the FLT loader completely out of the picture. Paul Martz Skew Matrix Software LLC HYPERLINK http://www.skew-matrix.com/http://www.skew-matrix.com 303 859 9466 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.13/1075 - Release Date: 17-Oct-07 9:38 AM flight1_0.flt Description: Binary data ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
