[osg-users] problem in camera rotation

Hi, I understand that this problem has already been discussed . But as I was not able to understand clearly I post my simple camera rotation problem., I written a code osg::refosg::Camera g_camera=new osg:::camera; g_camera-setProjectionMatrix(osg::Matrix::ortho2D(0,1,0,1));

Re: [osg-users] problem in camera rotation

Hi, Actually, I would like to simulate a navigation control for north orientation as available in google earth. I wanted to rotate the control along the X-axis(+/-) that will get reflected on geocentric virtual earth. I set the camera to the geometry(navigation control). What I thought was

Re: [osg-users] Navigation control

Hi, That s fine. But I wanted to know about the type of GUI component has been used for navigation. osgWidget is what I have to choose for such design? What type of file is that?? Thank you! Cheers, Akilan -- Read this topic online here:

Re: [osg-users] problem in camera rotation

Hi, yeah. I found my geometry center as ( 0.04,0.075,0.0). So first I do the rotation of 90 degree about z-axis and then translating my geometry to 0 by subtracting the aboive center values. Again I m getting my geometry is translated and half of the geometry is off the view. Have a look at

Re: [osg-users] problem in camera rotation

Hi, I changed the order of matrix manipulations and put everything in a single transformation only. But the result I m getting is same. The geometry is going out of view. I dont understand the problem. Pls anyone correct me. Thank you! Cheers, Akilan -- Read this topic

[osg-users] Transforming on coordinate system

Hi, I have drawn a geometry normal to XY-plane and I would like to transform it in such a way that it must be normal to YZ-plane.I did rotation for 90 degree about X-axis. Will it do what I wanted to do? The corresponding code would seems to be , .. osg::Matrix

[osg-users] smooth layer transistion?

Hi, I have created a terrain DB with different resolution images covering same area. As and when the region is zoomed in, there is transistion from poor resolution image to higher resolution image. The transition is quite visible. Means that at particular level the entire poor resolution

[osg-users] Setting fading property to node

Hi, In my terrain I wud like to display the tiles with fading fashion as is available in osgText.Is it possible to do? Thank you! Cheers, Akilan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20799#20799

Re: [osg-users] Setting fading property to node

Hi, I tried with the following code to get fading effect from the node to be rendered . I don't get the effect. I wud like to know where I do mistake. . . osg::stateSet* statSet=node-getOrCreateStateSet(); statSet-setMode(GL_LIGHTING, osg::stateAttribute::OFF);

[osg-users] Geotiff rendering?

Hi, Suppose when we add ive tiles to a group and render the group, all the tiles are placed at corresponding places according to their lat and lon. But when I m trying to do the same using just tif files it s not happening so. Instead, multiple tif tiles are overlaid one over other. Anyway tif

[osg-users] [osgPlugins] png, tif 3ds files reading problem

Hi, Recently I installed osg2.8.2. I compiled the sources (from .svn) successfully. But viewer is saying couldn't find plugin to read .png, tif of 3ds files even if osgdb_freetype.dll is in path and created from compilation. What needs to be done? Thank you! -- Read this

[osg-users] GL_COLOR_MATERIAL setting problem?

Hi, I installed osg 2.8.2 by compiling all 3rd party sources including glut. I tried to run one of example, osgblendequation, it throws the following error, Error: Setting mode 'GL_COLOR_MATERIAL' via osg::StateSet::setMode(mode,value) ignored. The mode 'GL_COLOR_MATERIAL' is set by

[osg-users] [3rdparty] Config url compile error?

Hi, I have just started working on osgEarth. I wrote my first code with osg2.8.2 to load a map something like ... #include osgEarth/Config ... Config conf; conf[url]=../data/world.tif; . Compiling the program gives an error saying dat ther s no predefinition for url.

[osg-users] Display from buffer

Hi, For displaying any .jpg/.tif file, we create texture and then doing so. Using OSG how to display pixels from a buffer straightaway as it could be done using openGL? Is it possible to by-pass osgDB::readImageFile(..) to read image content from buffer instead of from file?

Re: [osg-users] Display from buffer

Thanks. Yes. I m using osg::Image to set my pixel buffer. I set GL_LUMINANCE as internal pixel format. But I m getting only black image. My code looks like this, .. unsigned char* data; int width, height; width=4200; //source_image width height=4710;//source_image height long size = width

Re: [osg-users] Display from buffer

Hi, Thanks. It's working fine. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25643#25643 ___ osg-users mailing list osg-users@lists.openscenegraph.org

[osg-users] Multi screen display issue

Hi, I connected 2 monitors to my graphics card in such a way dat my desktop resolution is expanded doubly( width wise). My osg application renders a texture on both the screen contiguously by setting 2 seperate cameras for each screen, in the same way specified in osgCamera example.

Re: [osg-users] Multi screen display issue

Hi, Actually I like to display a big video stream in original resolution, 3840 * 1 (width * height). The video will run contiguously upward covering the width resolution as it is. We don't want to configure Xinerama due to some other reasons. But when we run osgviewer to display some of

[osg-users] positioning osg model at lat, lon

Hi, I tried to place cessna model at given latitude and longitude on a earth model created by geotiff earth file warped over sphere (similar to the example osgSimulation). But the model is positioned at some strange place. The way I do placing is, ... .

[osg-users] GraphicsContext on Multiple Graphics cards?

Hi, 4 graphics cards have been installed in my system thru PCI extension board. In my application I want to associate individual camera with each context created on each card. I wud like to know how to create context for specific graphics card/display. -- Read this topic

[osg-users] Setting camera to texture

Hi, My screen resolution is 1920*1200 and I rendered a texture with the geometry as top_left(0.0,1.2), top_right(1.92, 1.2), bottom_left(0.0, 0.0) and bottom_right(1.92, 0.0). Camera is set as, ... .. camera-setViewPort(0,0, 1920, 1200);

Re: [osg-users] Setting camera to texture

Hi, The code written is, . int numCameras=2; int numScreens=2; int width=1920 * numScreens; int height=1200; void setView(osgViewer::View* view, int screen_no) { double aspectRatioScale = 1.0; osg::ref_ptrosg::GraphicsContext::Traits traits = new

Re: [osg-users] Setting camera to texture

Hi Nick Find my code below to compile, Code: #include osg/Node #include osg/Geometry #include osg/Notify #include osg/MatrixTransform #include osg/Texture2D #include osg/DrawPixels #include osg/PolygonOffset #include osg/Geode #include osgDB/Registry #include osgDB/ReadFile #include

[osg-users] osgText and Texture

Hi, I created a texture and set to a camera. Another camera was set to a text. Text and the texture are in different views. Always the text goes behind the texture. What needs to be done to make the text appear always in front? I tried by setting the texture state's rendering hint as

Re: [osg-users] osgText and Texture

Hi robert, True. I do follow the osgHud example. But I am trying to display lat, lon values as text on mouse move over texture set from buffer. Anyway we use our own tranformation. But I couldn 't set the transparency. Have a look @ my code and let me get the mistake i do. Code:

[osg-users] Multicard memory allocation?

Hi, I have multiple graphics cards in my system and connected to different display. I created multiple views(composite viewer) so that each view to one context. Each view has its own camera projecting its own texture (similar to osgHud example). My assumption is that each texture occupies the

Re: [osg-users] Multicard memory allocation?

Hi robert, Thanks for ur clarification. In our setup, all powerwall displays are of 1280*1024. I m rendering a texture of 1280*1024 with the cameras viewport set in such a way it will be projected on big screen as 1280*1024. That means, as 512*1024 I m creating 3 textures(last

[osg-users] osgEarth fading effect?

Hi, Similar to osgEarth which provides to set fading effect to the terrain tiles, could it be is possible to get the same effect directly from osg alone and how? Bcoz, to exploit that feature from osgEarth, it puts some constraints like the terrainDB should be generated with --terrain

[osg-users] osgEarth fading effect?

Hi robert true. My imagery tiles have been constructed as layers such a way coarser resolution images lies at the top and higher resolution images at bottom.When my scene is zoomed-in, I like to have the appearance of higher resolution tiles like fading-in. Is that possible by

Re: [osg-users] osgEarth fading effect?

Hi robert true. My imagery tiles have been constructed as layers such a way coarser resolution images lies at the top and higher resolution images at bottom.When my scene is zoomed-in, I like to have the appearance of higher resolution tiles like fading-in. Is that possible by changing alpha

Re: [osg-users] osgEarth fading effect?

akilan wrote: Hi robert true. My imagery tiles have been constructed as layers such a way coarser resolution images lies at the top and higher resolution images at bottom.When my scene is zoomed-in, I like to have the appearance of higher resolution tiles like fading-in. Is

Re: [osg-users] osgEarth fading effect?

Robert, I set our terrain as input (output.ive) to the same osgmultitexturecontrol example. It is returning false from the function where node to the type of multitexturecontrol is searched from our terrain i.e.,dynamic_cast to multitexturecontrol is failing. Expected elevation

Re: [osg-users] osgEarth fading effect?

Hi zonk, To say straghtly, same region has been constituted by multi resolution tiles. The transition from coarser to better resolution tile will take place based on the height we are. As u said, exactly I like to know about the LOD popping by fadding only. Akilan. A --

Re: [osg-users] openGL error with osgEarth?

Hi Jason, In fact, I create the map through program.What the program does is that as and when some new tif file arrives at particular folder which I am monitoring continuously thru callback, I add the file to the already created map. It works well for some 2-3 tile addition. When it goes

[osg-users] Transformation on osgWidget?

Hi, I had installed osg2.9.6. osgWidget::Box is being used in my application. It provides, by default, transformation functionalities. Regarding rotation, it provides setRotation(osgWidget::matrix_type) to do that. But I am not sure how to specify the axis about which rotation to be done. I

[osg-users] osgwidget with texture setting?

Hi, In my application, I created a texture set to the screen size. Ortho camera has been created to map the texture entirely to the screen. I had created some osgwidget buttons to have some interaction on texture. But the widget buttons are, by default, goes behind the texture(in foreground).

[osg-users] Texture rendering performance issue

Hi, My system is connected with AMD Firestream 9250 having 1GB of card memory. I do some of GPGPU computations on the card. At the same time, using OSG I do texture rendering as a stream, in parallel. The rendering of texture effects performance down for GPGPU computation.

[osg-users] synchronizing multi rendering?

Hi, I have multi display set up in a way one graphics card to each monitor. I created one context to each screen and framing one texture to each and rendering. The rendering I do in a loop(1..NSCREEN). Display is happening perfectly as stream of video in parallel. After some time, the displays

[osg-users] context on different graphics cards?

Hi, I have put two graphics cardsin my system from different vendors. One is of ATI and another one is from nVidia. Using ATI I drive 2 monitors and able to create 2 graphics contexts in my osg application, each to one screen. In the same application I m not able to create graphics context

Re: [osg-users] context on different graphics cards?

yes. I m trying it out on windows 7 only. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31033#31033 ___ osg-users mailing list osg-users@lists.openscenegraph.org

[osg-users] North compass

Hi, I went through all the discussions on north compass. I have displayed the discussed code and the way I m making use of it for my osgEarth. But it s not working in my case.I m not sure what is to be done. osg::Matrixd calculatePositionMatrix( const osg::EllipsoidModel* ellipsoid, const

[osg-users] CullDrawthreading on multicards?

Hi, I am rendering textures on 8 graphics cards, each connected to one monitor. The cards, ATI Firestream 9250 series, are connected to system through PCI extension slots. If I set CullDrawThreadPerContext to composite viewer, the application crashes down. Its working with SingleThreaded

[osg-users] osgQt Multiscreen crashes?

Hi, I have installed osg3.0 on Linux system connected with two monitors thru separate graphics cards, say screen1 and screen2. On screen2 I have my GUI using qt. In the GUI, one of the widgets is made based on osgQt to show an osg modal. That model is set with the camera attached with the

[osg-users] computing triangles?

Hi I got a basic doubt on osg terrain construction. When I create a virtual earth with the base layer using bluemarble of 1000m resolution, how many triangular polygons are created and what is computation basis for it? Is the number varies(computed) to different LOD? -- Read

[osg-users] geometry indexes?

Hi Is there any easy way to find vertices's index for the shapes like Cone, Cube etc., in osg::shape? Otherwise, should it be done thru graph note book only? Thanks -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44869#44869

[osg-users] .ive acronym?

hi I could not find the acronym of .ive. Every where it is said that it is OSG truncated binary format. But from where these three letters have been taken?? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=46906#46906

[osg-users] loading to texture memory?

Hi, I have GPU of having 1GB texture memory. I like to load large volume of data into texture memory( using SetImage()), but less than 1GB, and render part by part of the data for every frame. Does OSG contains any function call to transfer only portion of texture memory to the display? To my

[osg-users] Android on windows?

Hi I gone through many installation procedures of osg with android. All emphasized on linux. Nowhere I could find for windows. Can android be configured with X-windows system only? Thanks -- Read this topic online here:

[osg-users] X11 link for osg compile?

Hi I tried to compile osg 3.0.1. with cygwin. Almost all the dependencies installed during cygwin setup including necessary libs of X11. But the compilation of osgviewer throws the following linker error, Linking CXX shared library ../../bin/cygosgViewer-80.dll Creating library file:

[osg-users] IllegalArgumentException?

Hi I compiled osg3.0.1 for android for GLES1. I seleceted avd of Android2.2 with API level of 8. There is no problem in starting the emulator.fine. I also compiled osgAndroidExampleGLES1 without any issue on eclipse. Running the application throws the following error, 05-04 05:38:01.375:

Re: [osg-users] [build] [Tutorial] Building osgAndroidExampleGLES1/2 on Ubuntu 11.10

Hi I compiled osg3.0.1 for android for GLES1. I seleceted avd of Android2.2 with API level of 8. There is no problem in starting the emulator.fine. I also compiled osgAndroidExampleGLES1 without any issue on eclipse. Running the application throws the following error, 05-04 05:38:01.375:

[osg-users] Geographic earth in OSG?

Hi, I created virtual earth as follows, osg::Node* createEarth() { osg::TessellationHints* hints = new osg::TessellationHints; hints-setDetailRatio(5.0f); osg::ShapeDrawable* sd = new osg::ShapeDrawable(new

Re: [osg-users] Geographic earth in OSG?

Hi, True. There is no problem with osgearth as it has well wrapped with projection information. I did not face any issue with that. But the samething when tried with OSG alone, i observed some issues. I put the pbm this way, suppose for given latitude and longitude as 11.0 and 77.0 (to be

[osg-users] Best way of adding more models?

Hi I was trying an application which renders some models on android phone using osg. The application requires more number of models to be loaded. As the number of models increases the rendering gets slowed down drastically as expected. The way I do is that under a group node all other nodes

[osg-users] Releasing Graphics context?

Hi, My application renders on multiple screens and each attached with seperate graphics context. The apps demands addition/removal of any graphics context dynamically. Suppose when the context is removed and added subsequently for the same screen, it throws msg like unable to

Re: [osg-users] Releasing Graphics context?

Robert I have 2 screens to be rendered with texture2D. I created context to each screen with appropriate screen id such a way, osg::ref_ptrpsg::GraphicsContext::Traits traits = new .; traits-x = 0; traits-y = 0; traits-screenNum = 0; //1 for other screen trait-width = screen_width;

Re: [osg-users] Releasing Graphics context?

Robert, Actually I m creating new context and assigning to already existing camera. I use CompositeViewer. I tried removing camera from the view but the error stands still. Let me try out the second one and get back. In case of having just Viewer, is there any other way to do it? Thanks

Re: [osg-users] Releasing Graphics context?

Hi Robert My OSG version is 3.0.1. Is close() the right call to release the context completely? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50038#50038 ___ osg-users mailing list