Re: [osg-users] Painting in Textures

Hey Maxim, first, thanks for your help. Now I know the way to manipulate values in my image. But now I have the problem to find out the right pixel in the texture. A little example: I have a complex object with a texture. All triangles of the object are randomly distributed on the texture. And I

Re: [osg-users] Macintosh: best build practices

Hi, If you plan to install OSG as a system library with XCode don't forget to do : Code: sudo xcodebuild -target install -configuration Release XCode cannot proceed to install directly. Thank you! Cheers, Benoît -- Benoît Bayol benoit.ba...@gmail.com

Re: [osg-users] Painting in Textures

Hi Martin, you have already hinted at a search term you can use. Google for projective texturing. Also try automatic texture coordinate generation. An example in OSG of this is the OverlayNode of osgSim (this is used to project a texture onto terrain e.g.). Using this technique you can

Re: [osg-users] OpenSceneGraph-2.8.2 release candidate one tagged

Hi Andrew. On Wed, Jul 1, 2009 at 12:44 AM, Andrew Cunninghamo...@a-cunningham.com wrote: If you follow the link-to-the-post I have uploaded a sample geometry into that thread. I'm afraid I don't know what you mean by link-to-the-post. The problem can be illustrated by using the

Re: [osg-users] Read number of Pixels an object takes up

Hi Jeremy, The OSG now has support of OpenGL occlusion query that can provide the number of pixels covered when rendering. See osgocclusionquery example. Robert. On Wed, Jul 1, 2009 at 12:35 AM, Jeremy Warrenjw...@hotmail.com wrote: I have a simple scene. Colored background and an object, say

Re: [osg-users] Painting in Textures

Hi JP, I want to baked into the texture to create a new painted texture with the same texture coordinates like the original texture of the object. The exact use case is the creation of a heigh map. That is to say first I would like paint into the texture and after this I want to change the

[osg-users] osgWidget::WindowManager::_lastEvent suggestion

Hi, I'm using OSG 2.8.1 and I have a hopefully useful suggestion regarding _lastEvent (and probably _lastPush) in the WindowManager: My problem is that I destroy or replace entire windows e.g. after clicking a widget and especially after some keyboard interaction (cursor keys, return key as a

Re: [osg-users] Osg/OpenGL flickering on Solaris Sparc 5.10

I have the same problem with a Mac. It does happen only on certain machine/graphic cards, and only when the cmd/ctrl key is pressed. Is there someone who knows if that Key has a special function on Mac? Thanks, Gianluca -Original Message- From: osg-users-boun...@lists.openscenegraph.org

[osg-users] Problem with osgpdf on windows

Hi Guys, I am having trouble with running osgpdf example. I have compiled the pdf plugin, but it seems there is some problem while loading the pdf from cairo. Has any one tested the osgpdf example successfully on Windows? If Yes please share the sources of cairo and other dependencies used

[osg-users] Anyone using osgWidgets in 3D?

Hi again, I would like to know, if anyone is placing buttons or menus into a 3D scene. Of course that wasn't the original purpose of osgWidget, but since there are many nice functionalities like the mouse callbacks, it seems worth trying instead of implementing some own picking based 3D GUI. I

Re: [osg-users] Osg/OpenGL flickering on Solaris Sparc 5.10

Gianluca Natale schrieb: I have the same problem with a Mac. It does happen only on certain machine/graphic cards, and only when the cmd/ctrl key is pressed. Is there someone who knows if that Key has a special function on Mac? Huh? CMD/Ctrl has no special treatment in side OSG, they are

[osg-users] osgDB::fileExists returns false with path containing accent

Hi all, I just encounter a problem in osgDB::fileExists I made a path : Z:/release with space et é où è )/Data/myfile.ttf and osgDB::fileExists return false for this file ... but the path is really good... This is a accent issue, but I don't see how I can manage accent ... Any idea ? Thanks.

Re: [osg-users] osgDB::fileExists returns false with path containing accent

My file main.cpp where the string is put is encoded in UTF8 without BOM. * string path2 = Z:/release with space et é où è )/Data/3d/data/font/arial.ttf; if(osgDB::fileExists(path2)) cout PATH2 exist ! : path std::endl; else cout PATH2 NOT exist !

Re: [osg-users] quaternion to euler

Hi Rabbi, You can start from osgAnimation::UpdateTransform callback, change the euler to quaternion or ineherit to add quaternion then adjust the method needLink, link, update to use your new quaternion. Then set your new UpdateTransformQuaternion callback to your Transform The code are in

Re: [osg-users] Camera Manipulator

Hola, Let me ask it another way. I'm in a fragment shader. I have the vec4 gl_FragCoord. I do: Code: vec3 windowcoord = vec3(gl_FragCoord.xy, 1.0); vec3 clipcoord = viewportMatrixInverse * windowcoord; vec4 eyecoord = gl_ProjectionMatrixInverse * vec4(clipcoord, 1.0); eyecoord = eyecoord /

Re: [osg-users] osgDB::fileExists returns false with path containing accent

On 1/7/09 11:38 AM, Vincent Bourdier wrote: My file main.cpp where the string is put is encoded in UTF8 without BOM. / string path2 = Z:/release with space et é où è )/Data/3d/data/font/arial.ttf; if(osgDB::fileExists(path2)) cout PATH2 exist ! : path std::endl;

Re: [osg-users] osgWidget::WindowManager::_lastEvent suggestion

Hi Simon, I'm not too familiar with this particular part of the osgWidget code base, so your explanation of this issue isn't something I can understand right away. To help understand the issue + possible resolution could you post the file you modified so that I can review it. Thanks Robert. On

Re: [osg-users] Anyone using osgWidgets in 3D?

Hi Simon, I would like to see osgWidget be generalized to work in 3D, I haven't had the change yet to dive in and use osgWidget actively yet, so haven't got grips with the code base yet, it's something I have planned, but it'll have to wait to after 2.10 is out, which takes us into August. In

Re: [osg-users] Anyone using osgWidgets in 3D?

Hi Robert, Thanks for your ideas. At the beginning I found osgWidget quite confusing because of the many API functions and the few documentation :-), especially the WindowManager and its managing functions. In 3D I had to use my own RenderBins settings because the way the WindowManager uses or

[osg-users] NASA, Japan Release Most Complete Topographic Map of Earth

Good news everyone! http://www.nasa.gov/home/hqnews/2009/jun/HQ_09-150_ASTER_Topographic_Map.html http://news.bbc.co.uk/2/hi/science/nature/8126197.stm Regards, Maciej ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] osgDB::fileExists returns false with path containing accent

I did'nt ... I'll try that. I assume that using the osgDB::ifstream instead of std::iftream is necessary too. Thanks for the tip, I'll dig into the issue to see if this will solve my problem. Regards, Vincent. 2009/7/1 Ulrich Hertlein u.hertl...@sandbox.de On 1/7/09 11:38 AM, Vincent

[osg-users] Build error on osgPresentation

Hi Robert, There is a build error with osgPresentation on Windows, it seems you forget to add osgGA as a LINK_INTERNAL into the CMake file. Cheers, -- Serge Lages http://www.tharsis-software.com ___ osg-users mailing list

Re: [osg-users] OpenSceneGraph-2.8.2 release candidate two tagged

Robert Osfield wrote: Hi All, I’ve have now tagged the OpenScneGraph-2.8.2 release candidate 2, and as very few problems were reported in testing of 2.8.2-rc1 there is just a couples of changes required: * fix of the parsing of ascii floating point numbers in plugins and env var parsing so

[osg-users] GraphicsContext::getWindowingSystemInterface() problem...on Windows Mobile 6

Hi, I'm porting OSG v2.8.0 to Windows Mobile 6. I have completed to build OSG libraries but not working.. The problem is that Viewer dosen't get a graphic context. This is the error message: Viewer::realize() - failed to set up any windows static ref_ptrGraphicsContext::WindowingSystemInterface

Re: [osg-users] NASA, Japan Release Most Complete Topographic Map of Earth

Maciej Krol wrote: Good news everyone! http://www.nasa.gov/home/hqnews/2009/jun/HQ_09-150_ASTER_Topographic_Map.html http://news.bbc.co.uk/2/hi/science/nature/8126197.stm Here's an interesting review of the quality of the data: http://www.viewfinderpanoramas.org/reviews.html#aster Tim

Re: [osg-users] Build error on osgPresentation

Hi Serge, thanks for the pointing this out, fix now applied and checked into svn/trunk. On Wed, Jul 1, 2009 at 1:25 PM, Serge Lagesserge.la...@gmail.com wrote: Hi Robert, There is a build error with osgPresentation on Windows, it seems you forget to add osgGA as a LINK_INTERNAL into the CMake

Re: [osg-users] OpenSceneGraph-2.8.2 release candidate two tagged

Hi Paul, On Wed, Jul 1, 2009 at 1:34 PM, Paul Melisp...@science.uva.nl wrote: Just a quick note to say that there does not seem to be a check for poppler being installed during cmake configuration. I was missing some of the headers (specifically the glib bindings), but cmake did not complain.

Re: [osg-users] GraphicsContext::getWindowingSystemInterface() problem...on Windows Mobile 6

Hi Younggon, I haven't heard of the OSG being compiled under Windows Mobile before so you may well be the first to tread this route. It may well be that osgViewer::GraphicsWindowWin32 will need to be modified or perhaps even replaced by another window integration solution that is appropriate to

Re: [osg-users] Crash in Viewer Destructor

U Sent via BlackBerry from T-Mobile -Original Message- From: Robert Osfield robert.osfi...@gmail.com Date: Thu, 25 Jun 2009 17:21:36 To: OpenSceneGraph Usersosg-users@lists.openscenegraph.org Subject: Re: [osg-users] Crash in Viewer Destructor On Thu, Jun 25, 2009 at 5:17 PM, Vincent

Re: [osg-users] OpenSceneGraph-2.8.2 release candidate one tagged

Hi, Sorry, this is what I meant, a link to the forum discussion about this bug. http://forum.openscenegraph.org/viewtopic.php?t=2949highlight=polytope Andrew -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=14772#14772

Re: [osg-users] osgPresentation doesn't build on the SVN

Uo Sent via BlackBerry from T-Mobile -Original Message- From: Ralf Stokholm alfma...@arenalogic.com Date: Thu, 25 Jun 2009 20:30:14 To: OpenSceneGraph Usersosg-users@lists.openscenegraph.org Subject: Re: [osg-users] osgPresentation doesn't build on the SVN

[osg-users] how to set uniform is shaders by vertex

Hi, Is there any way I can set the uniforms by vertex? I know uniforms are in stateset. There are some attribute for vertex I need to set in shaders for each vertex. How can I do it? Thank you! Cheers, Rabbi -- Read this topic online here:

Re: [osg-users] how to set uniform is shaders by vertex

Rabbi Robinson wrote on Wednesday, July 01, 2009 9:50 AM: Hi, Is there any way I can set the uniforms by vertex? I know uniforms are in stateset. There are some attribute for vertex I need to set in shaders for each vertex. How can I do it? Uniforms are not set by vertex; you are wanting

[osg-users] osgManipulator refactored

Hi All, One of the items I've been working towards over the last week has been to add interactive volume region editing, my plan was to use the tab box manipulator from osgManipulator to allow me to adjust the osgVolume::VolumeTile's Locator matrix. Alas digging into osgManipulator I found it

Re: [osg-users] OpenSceneGraph-2.8.2 release candidate one tagged

Hi Andrew, Thanks for the link. The place to put the link and distilled description of how to reproduce the is on the bug resolution page. I'm afraid I have lots of work on my plate, so I can't go chasing up and documenting all this so members of the community need to dive in and record, and try

Re: [osg-users] Frame rates vary dramatically across runs

Hi, I am building an application using osg and recently I have been experiencing dramatic changes in frame rate across runs. One run will have 140 + fps while the next run will have 15 fps. I was wondering if anyone else has experienced this? Thank you! -- Read this topic

Re: [osg-users] osgDB::fileExists returns false with path containing accent

Hi all, Still remain a problem : I use osgDB::ifstream to load a file. *osgDB::ifstream in( filename.c_str() ); if(osgDB::fileExists(filename)) cout Config File constructor : file exist ! std::endl; if( in.bad() ) throw file_not_found( filename ); * There is no error,

[osg-users] thousands spheres renedering with OSG

Hello to all osg users, I would like to render about 8 to 10 thousands of spheres in order to simulate the movement of a pile of rocks pushed by a bulldozer. Each sphere will have a maximum of 20-40 vertices and will be drawn in TRIANGLE_STRIP mode. The results of the tests I did with spheres

Re: [osg-users] thousands spheres renedering with OSG

You might want to explore using vertex shaders to achieve some kind of fake geometry instancing. The SDK sample osgforest does something similar to project a forest made of thousands of trees using GLSL (and also ARB fragment program in the 2.9 branch). More about OpenGL pseudo instancing is

Re: [osg-users] Frame rates vary dramatically across runs

Hi Michele, This behavior is unusually, one might expect differences if cache coherency or CPU affinity is not working well but no where near the scale you are seeing. I would recommend looking at what other processes are running on your machine. I'd also enable onscreen stats to see what is

Re: [osg-users] thousands spheres renedering with OSG

Hi Mikhail, The vertex count won't be so high as to cause major problems, but the the cull and draw dispatch overhead in dealling with so many separate objects will be. So to improve performance look at batching the rendering of the rocks, the most efficient way would be to use point sprite and

Re: [osg-users] thousands spheres renedering with OSG

Consider using draw instanced. See the osgdrawinstanced example. -- Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com +1 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org

[osg-users] Bug? Example install location

I'm not sure where these are supposed to go, but I'm pretty sure that /usr/share is for architecture-independent files, which the example binaries are not. Perhaps $(CMAKE_INSTALL_PREFIX)/lib/osg? Randolph ___ osg-users mailing list

[osg-users] Clamping line to terrain

Hi, I'm trying to implement a 3D line which can follow the terrain's height (terrain hugging) but the resultant line is not smooth (see attached), I'm using Bresenham line algorithm to generate and intersector to clamp the line, are there any ways to smooth the line and yet can follow the