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Questions tagged [openscenegraph]

Openscenegraph is an OpenGL renderer and scene management API/toolkit.

Openscenegraph, abbreviated OSG, is in their own words "an open source high performance 3D graphics toolkit". It is written in C++ and is highly object-oriented. The code is licensed under their own derivative of LGPL.

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Linking of Openscenegraph libraries for CMake

Well,I am new to CMake and want to edit flight simulation code in eclipse instead of visual studio. For that purpose, I downloaded the source code of Simgear, CMake, Boost libraries, open scene graph and openalsoft. Now I have all the data available…
MSM
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OpenSceneGraph/OpenGL Image internalFormat

I need to pass a 2D texture array to a fragment shader that performs texelFetch and bitwise operations over uchar elements. For this reason, I need to create a texture with a very specific internal format, that guarantees that my texels are in…
manatttta
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FBO errors when getting stencil buffer using OSG

I'm trying to get the stencil index of a node using offline rendering in OSG. My main procedures are listed below: deeply copy the node I want to offline render and get the stencil index; create a offline render camera, and make the previous copied…
Jimmy Chen
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vertex attribute cannot be passed into vertex shader in OSG

everyone, I am using vertex attribute in a vertex shader with OSG. I followed the routine which includes addBindAttribLocation and setVertexAttribArray. The problem is that if I use VBO, then the vertex attribute cannot be passed to vertex shader.…
Jimmy Chen
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Unresolved externals on static linking OpenSceneGraph libraries in Visual Studio

I'm using OpenSceneGraph libraries in my application and I want to link them statically, so I don't have to carry DLLs with binary. I have downloaded OpenSceneGraph 3.4.0 sources and generated Visual Studio project by cmake. I did disabled…
Łukasz
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Texture mapping of the cessna.osg via GLSL shaders

What I am trying to do should be pretty simple, I guess, but I am not getting what I want (maybe because I am kind of newbie in this kind of tools). I just want to map a certain texture image (typical bricks, for instance) into the existing…
user3417052
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Multitouch Openscenegraph and Qt

I have a Qt application with an integrated OSG scene. The problem is that Multitouch events are not working correctly on my Surface-Tablet. Maybe they are not forwarded to the Qt-Widget which holds the OSG scene. One finger touch works fine like…
L. Hochberger
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How to make align objects, autorotated to screen, to pixel grid?

I'm trying to show a rectangular object so that it doesn't change its look on rotations and zoom in OpenSceneGraph. I've found that osg::AutoTransform should work for me. But with the following code it appears to give broken results even if I set…
Ruslan
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OpenSceneGraph osg::Quat: shape not rotating

I have a small function to create a new instance of a WorldObject. I want to use osg::ref_ptr for translation and rotation but there is a problem I can't figure out. I use setTranslation() with a Vec3 which works very…
Dropye
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Load big image in osg

i am using openscenegraph to show a bridge model.I use Texture2D to represent an image.Now,the problem is that the image is too large, about 1G .if i load the whole image at one time,it would be a waste of computer memory. I want to implement the…
yyLiao
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Read Shader Storage Buffer Object data after computer shader execution in openscenegraph

I'm trying to read back data, a simple float array, from a shader storage buffer object after execution of a compute shader. I need this data into my application code running osg library. Following the osgssbo example I setup a shader storage buffer…
Bikappa
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Understanding OpenSceneGraph AddChild in an other thread

I am replacing the OpenGL code of my C++ app with code that uses OpenSceneGraph. The app is based on Qt and using Qt Threads. The main thread is calling the viewer->frame() while other threads are loading data. Those threads directly works whith my…
Krag
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Compiling osgconv on Linux statically with support for obj files

I've compiled OpenSceneGraph 3.4.0 on Linux (32-bit) setting OFF DYNAMIC_OPENSCENEGRAPH and DYNAMIC_OPENTHREADS flags and enabling apps and examples on CMake. Build was successful and I have static libraries and also the example osgstaticviewer…
Francesco Argese
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OpenGL to OpenSceneGraph migration: Incorrect display in case of certain texture dimensions

I am replacing the OpenGL code of my app with code that uses OpenSceneGraph. I am working with large images (resolution higher than 5000x5000px), therefore images are split into smaller tiles. The OpenGL code to draw the tiles uses…
Krag
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undefined reference openscenegraph

I'm trying to compile a ROS OSG project from here https://github.com/uji-ros-pkg/visualization_osg and keep getting following error: CMakeFiles/osg_interactive_markers_demo.dir/examples/osg_interactive_markers_demo.cpp.o: In function…
Etimr
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