Re: [osg-users] HowTo use UPDATE_TO_VERSION for custom osg::Object separate from osgVersion()
Hello Wang. Recently, I downloaded osg version 3.1.5 and I found out, that my UPDATE_TO_USER_VERSION macros don't work anymore. I digged into the osg source and found out that it is not there anymore, so I searched the forum but I didn't find any reason why was it removed. I used osg 3.1.1 before. I don't want to force you, I just want to ask, why was it removed if it was already there once? Thank you! Cheers, Peter -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53678#53678 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Testing call for experimental stereo support
Hi All, I am currently working on moving stereo support from the low level SceneView class up into the osgViewer library, the initial step for this work has been to use the new osgkeystone example as the testbed for creating the required viewer slave Camera's and configuration them to handle the various types of stereo that the OSG supports via SceneView. I only have a pair of Anaglyphic classes here so can only directly test this option, so need members of the community with the available hardware to test the code I've written and report back success/failure/fixes. To test you'll need the svn/trunk version of the OSG, if you need a dev release I can tag one today, just let me know. You'll need to compile the OSG with examples enabled as my testbed osgkeystone is amongst the examples. Once you have everything built you can test things out via one or more of the following: osgkeystone cow.osg --stereo ANAGLYPHIC osgkeystone cow.osg --stereo QUAD_BUFFER osgkeystone cow.osg --stereo HORIZONTAL_SPLIT osgkeystone cow.osg --stereo VERTICAL_SPLIT osgkeystone cow.osg --stereo HORIZONTAL_INTERLACE osgkeystone cow.osg --stereo VERTICAL_INTERLACE osgkeystone cow.osg --stereo CHECKERBOARD I have been able to run all of these options except the QUAD_BUFFER as my OpenGL driver doesn't support quad buffer stereo, but as I don't have the required hardware to test the options beyond ANAGLYPHIC I'm rather stuck in knowing whether they are working correctly - I can run the options and they run and behaves in a plausible way, but there is no way for me to know for certain that everything is working fine. I recall a long while back that the interlaced options were sensitive to the viewport/window being moved resulting in the eyes getting swapped. With the new code we should be able to add a small bit of code to automatically odd/even positioning of the corner of the window+viewport and they swap the eyes to avoid this glitch. Again I can guess what the code might be and write it but won't have any way of testing for it. The final bit of the jigsaw is that if you want perfect aspect ratios and fov set up the use the env vars OSG_SCREEN_HEIGHT, OSG_SCREEN_WIDTH and OSG_SCREEN_DISTANCE to configure the stereo camera setup to perfectly fit your display. If there are other stereo options that you'd like to add to the mix then have a look at the code in the osgkeystone.cpp and have a bash at adding it, or just chip into this thread about how we might go about adding support and getting it tested. Another thing that could be open for discussion is alternative code paths for OpenGL ES support - such as stencil buffer support or polygon stipple that is currently used for the interlaced stereo approaches. And... another area that we could look at is support for toggling on/off stereo support, some apps will require this, let us know your usage model so we can discuss how to best provide the ability. Thanks in advance for your help, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to build OpenSceneGraph for Android in Windows
S2LR wrote: [...] I'm getting the following error when I run the make... Android NDK: Parsing Application.mk Android NDK: APP_PIE is C:/AndroidDevelopment/android-ndk-r8e/build/gmsl/__gmsl:512: *** non-numeric second argument to `wordlist' function: ''. Stop. make[2]: *** [Android-OpenSceneGraph] Error 2 make[1]: *** [CMakeFiles/ndk.dir/all] Error 2 make: *** [all] Error 2 Any idea on what this error is referring to? [...] With r8c the procedure gives the same error while with android-ndk-r8b-windows.zip compilation starts. That ndk can be found at the following link: https://dl.google.com/android/ndk/android-ndk-r8b-windows.zip Francesco -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53680#53680 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [ANN] GullsEye
Hello Dear OSG-community, Happy to announce GullsEye - our 3D Port Visualization System built on OpenSceneGraph. Intro video at: http://youtu.be/y1ANByGUNqc (HD required) Best regards, Can Oguz Systems Analyst / SoftTech -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53681#53681 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to build OpenSceneGraph for Android in Windows
Hi Francesco, this top was discussed heavely last week (look for osgAndroidExample in the archive). Here is a fix for that error - you have to edit a file http://stackoverflow.com/questions/10285242/openssl-using-androids-ndk-problems/10295653#10295653 Cheers, Nick On Thu, Apr 18, 2013 at 12:14 PM, Francesco Argese kekk...@gmail.comwrote: S2LR wrote: [...] I'm getting the following error when I run the make... Android NDK: Parsing Application.mk Android NDK: APP_PIE is C:/AndroidDevelopment/android-ndk-r8e/build/gmsl/__gmsl:512: *** non-numeric second argument to `wordlist' function: ''. Stop. make[2]: *** [Android-OpenSceneGraph] Error 2 make[1]: *** [CMakeFiles/ndk.dir/all] Error 2 make: *** [all] Error 2 Any idea on what this error is referring to? [...] With r8c the procedure gives the same error while with android-ndk-r8b-windows.zip compilation starts. That ndk can be found at the following link: https://dl.google.com/android/ndk/android-ndk-r8b-windows.zip Francesco -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53680#53680 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [ANN] GullsEye
Very cool ! You might want to think of integrating Triton for your app for the ocean Nick On Thu, Apr 18, 2013 at 12:39 PM, Can T. Oguz cto...@gmail.com wrote: Hello Dear OSG-community, Happy to announce GullsEye - our 3D Port Visualization System built on OpenSceneGraph. Intro video at: http://youtu.be/y1ANByGUNqc (HD required) Best regards, Can Oguz Systems Analyst / SoftTech -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53681#53681 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- trajce nikolov nick ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [ANN] GullsEye
Thanks, Sure it needs something for the ocean. it's in the todo list. Can -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53686#53686 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Height of the terrain on a given lang/long
Hi everyone, I am trying to calculate height value of the terrain on a given latitude and longitude. I am using a ive formatted terrain model that was converted using osgDem from Dted level-1 data. I searched a solution on whole osg forum and web but i could not find good one. Also I looked HeightAboveTerrain class and osgintersection sample but these class does not work only given a latitude and longitude values. I can get height on terrain with following code block, is it a good solution? Code: osg::PagedLOD* pLod = dynamic_castosg::PagedLOD*(coordinateSystemNode-getChild(0)); osgTerrain::TerrainTile* pTopTile = dynamic_castosgTerrain::TerrainTile*(pLod-getChild(0)); osgTerrain::HeightFieldLayer* pLayer = dynamic_castosgTerrain::HeightFieldLayer*(pTopTile-getElevationLayer()); pLayer-getInterpolatedValidValue( osg::DegreesToRadians(langVal), osg::DegreesToRadians(longVal), height ); Cheers, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53687#53687 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Height of the terrain on a given lang/long
The methods provided in osgSim work for geocentric databases. Is your terrain built as a geocentric database? If so, you can get the HAT/HOT with this... earth-convertLatLongHeightToXYZ(osg::DegreesToRadians(lat), osg::DegreesToRadians(lon), alt, X,Y,Z); hat = osgSim::HeightAboveTerrain::computeHeightAboveTerrain(terrain.get(), osg::Vec3d(X,Y,Z)); If you're a flat earth with lat/lon only, then what you've got is probably fine... -Shayne -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Zeki Yugnak Sent: Thursday, April 18, 2013 7:15 AM To: osg-users@lists.openscenegraph.org Subject: [osg-users] Height of the terrain on a given lang/long Hi everyone, I am trying to calculate height value of the terrain on a given latitude and longitude. I am using a ive formatted terrain model that was converted using osgDem from Dted level-1 data. I searched a solution on whole osg forum and web but i could not find good one. Also I looked HeightAboveTerrain class and osgintersection sample but these class does not work only given a latitude and longitude values. I can get height on terrain with following code block, is it a good solution? Code: osg::PagedLOD* pLod = dynamic_castosg::PagedLOD*(coordinateSystemNode-getChild(0)); osgTerrain::TerrainTile* pTopTile = dynamic_castosgTerrain::TerrainTile*(pLod-getChild(0)); osgTerrain::HeightFieldLayer* pLayer = dynamic_castosgTerrain::HeightFieldLayer*(pTopTile-getElevationLayer( )); pLayer-getInterpolatedValidValue( osg::DegreesToRadians(langVal), osg::DegreesToRadians(longVal), height ); Cheers, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53687#53687 ___ 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] Height of the terrain on a given lang/long
Hi Zeki, On 18 April 2013 16:05, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC shayne.tuel...@hill.af.mil wrote: The methods provided in osgSim work for geocentric databases. Is your terrain built as a geocentric database? If so, you can get the HAT/HOT with this... earth-convertLatLongHeightToXYZ(osg::DegreesToRadians(lat), osg::DegreesToRadians(lon), alt, X,Y,Z); hat = The missing bit of information here is that a geocentric database created by VPB will be decorated by a osgTerrain::Terrain node that is subclassed from osg::CoordindateSystemNode that provide the osg::EllipsoidModel that has the covertLatLongHeightToXYZ method. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] reading dem/image files...
Just a followup post to my original inquiry... After appending the .gdal to my .dt1 files to get the readHeightFieldFile() to read the DTED file format, I also had to do the following to get the DTED to render correctly... osg::HeightField *grid = osgDB::readHeightFieldFile(n41.dt1.gdal); grid-setOrigin(osg::Vec3(0.0, 0.0, 0.0)); xsize = (radius * osg::PI * grid-getXInterval()) / 180.0; ysize = (radius * osg::PI * grid-getYInterval()) / 180.0; grid-setXInterval(xsize); grid-setYInterval(ysize); where radius is the mean radius of the Earth in meters. Hopefully this help someone who wants to do simple display of raw DTED data (i.e. *.dt1 files) using the default osg viewer... -Shayne -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53690#53690 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Need help with switching between manual and automatic camera movement
Hi,
In my OSG application, I am trying to implement a functionality, that would
allow me to switch between usual manual movement and an automatic one (such as
spinning on spot), but I haven't had any success yet.
My last attempt was to set an update callback to the camera, that would spin it
around, such as this:
Code:
void CameraCallback::operator()(Node* node, NodeVisitor* nv)
{
Camera * cam = static_castCamera *(node);
if(cam Settings::Instantiate()-getCameraMode() == CAMERA_ROTATE)
{
Matrixd oldMatrix = cam-getViewMatrix();
Matrixd cameraRotation;
cameraRotation.makeRotate(oldMatrix.getRotate());
cameraRotation.rotate(DegreesToRadians(5.0), 0, 0, 1);
Matrixd cameraTrans;
cameraTrans.makeTranslate(oldMatrix.getTrans());
Matrixd newMatrix = cameraRotation * cameraTrans;
cam-setViewMatrix(newMatrix);
}
traverse(node, nv);
}
... and then I had the viewer object registered by the class that handles
keyboard events and tried to update it accordingly:
Code:
void registerViewer(Viewer* v) { viewer = v; man =
viewer-getCameraManipulator(); }
bool KeyboardEventHandler::handle(const GUIEventAdapter ea, GUIActionAdapter
aa)
{
...
case 'n':
case 'N':
Settings::Instantiate()-ToggleCamera();
if(Settings::Instantiate()-getCameraMode() == CAMERA_MANUAL)
{
viewer-setCameraManipulator(man);
viewer-getCamera()-setAllowEventFocus(true);
}
else
{
viewer-setCameraManipulator(NULL);
viewer-getCamera()-setAllowEventFocus(false);
}
break;
...
}
Hopefully these snippets are enough for someone to explain me, what I am doing
wrong and how to do it the right way.
Thank you!
Cheers,
Martin
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Re: [osg-users] Need help with switching between manual and automatic camera movement
Hi Martin,
what are you experiencing, where you see the problems? It is sort of not
stated in your email. in your first code snipped in the update I would do
this to have the matrices in the world space:
Matrixd oldMatrix = cam-getInverseViewMatrix();
.
.
cam-setViewMatrix(osg::Matrixd::inverse(newMatrix));
This should setup your matrices correctly. Also once the matrixes are in
world space then you can easelly transition from automatic to manual state
by setting the camera manipulator by matrix. I think when you add and
remove camera manipulators, it goes to your home position of the
manipulator (see CameraManipulator::setHomePosition), so you have to take
into account this as well. If you want to spin it around between two
rotations try using quaternions (from the matrix, it is getRotate()) and
slerp (quaternion method) between two different orientation. These above is
just guessing since you havn't stated your problem. Maybe the best would be
if you put your whole code into sample and post it here, someone might have
time to look and help
Nick
On Thu, Apr 18, 2013 at 6:53 PM, Martin Záleta zal...@atlas.sk wrote:
Hi,
In my OSG application, I am trying to implement a functionality, that
would allow me to switch between usual manual movement and an automatic one
(such as spinning on spot), but I haven't had any success yet.
My last attempt was to set an update callback to the camera, that would
spin it around, such as this:
Code:
void CameraCallback::operator()(Node* node, NodeVisitor* nv)
{
Camera * cam = static_castCamera *(node);
if(cam Settings::Instantiate()-getCameraMode() ==
CAMERA_ROTATE)
{
Matrixd oldMatrix = cam-getViewMatrix();
Matrixd cameraRotation;
cameraRotation.makeRotate(oldMatrix.getRotate());
cameraRotation.rotate(DegreesToRadians(5.0), 0, 0, 1);
Matrixd cameraTrans;
cameraTrans.makeTranslate(oldMatrix.getTrans());
Matrixd newMatrix = cameraRotation * cameraTrans;
cam-setViewMatrix(newMatrix);
}
traverse(node, nv);
}
... and then I had the viewer object registered by the class that handles
keyboard events and tried to update it accordingly:
Code:
void registerViewer(Viewer* v) { viewer = v; man =
viewer-getCameraManipulator(); }
bool KeyboardEventHandler::handle(const GUIEventAdapter ea,
GUIActionAdapter aa)
{
...
case 'n':
case 'N':
Settings::Instantiate()-ToggleCamera();
if(Settings::Instantiate()-getCameraMode() == CAMERA_MANUAL)
{
viewer-setCameraManipulator(man);
viewer-getCamera()-setAllowEventFocus(true);
}
else
{
viewer-setCameraManipulator(NULL);
viewer-getCamera()-setAllowEventFocus(false);
}
break;
...
}
Hopefully these snippets are enough for someone to explain me, what I am
doing wrong and how to do it the right way.
Thank you!
Cheers,
Martin
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Re: [osg-users] Need help with switching between manual and automatic camera movement
Hi, I guess I kinda forgot to describe my problem in detail. In part it was because I was hoping, that someone would suggest me a better solution to this problem, since registering viewer handle in a keyboard event handler doesn't really seem to me like much of a good solution, but it was the best I could come up with. Anyway, what you wrote has helped me resolve the issue I had, so at least it's working somehow. Thank you! Cheers, Martin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53693#53693 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Height of the terrain on a given lang/long
Thank you for your answers. Yes, I am using geocentric database. My input values are only latitude and longitude. I don't have altitude information. So result of the computeHeightAboveTerrain function conversion is not enough for computeHeightAboveTerrain. I need to find terrain elevation only with latitude and longitude inputs. Rergards, -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53695#53695 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Height of the terrain on a given lang/long
If you want HOT (height of terrain) for a particular lat/lon, use the same code as above and do the following... Code: maxElevationInDatabase = 3962.0; // meters earth-convertLatLongHeightToXYZ(osg::DegreesToRadians(lat), osg::DegreesToRadians(lon), maxElevationInDatabase, X,Y,Z); hat = osgSim::HeightAboveTerrain::computeHeightAboveTerrain(terrain.get(), osg::Vec3d(X,Y,Z)); hot = maxElevationInDatabase - hat; The caveat is that you need the maximum height in your database (Mt Everest perhaps?) -Shayne -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53696#53696 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
