Hello Noesis Team, I am trying the integration with OpenSceneGraph. I tried the example on the github page and it all works fine. But the example only focuses on the integration as an HUD, while I am interested in using Noesis as a part of the 3D scenegraph, e.g. on the side of a cube. Do you have any hint on what I should do to reach this goal?

Thank you.

Luca

ok... I kinda found a solution to my problem. I will post some details here, so people can correct me if I did something wrong.

I create a Render to Texture osg::camera, with the following code:
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
camera->setClearColor(osg::Vec4(0.6f, 0.1f, 0.1f, 1.0f));
camera->setClearStencil(0);
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrixd::identity());
camera->setViewport(0, 0, width, height);
camera->setRenderOrder(osg::Camera::PRE_RENDER);
camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
camera->setProjectionMatrix(osg::Matrix::ortho2D(0.0, 1.0, 0.0, 1.0));

then I create a texture to render onto and I attach it to the camera:
osg::ref_ptr<osg::Texture2D> tex = makeColorTexture(width, height);

camera->attach(osg::Camera::PACKED_DEPTH_STENCIL_BUFFER, makeStencilTexture(width, height).get());
camera->attach(osg::Camera::COLOR_BUFFER, tex.get());

then I follow the example given in OSGBindings and I create a wrapper for noesis, add it as a drawable to a geode and add this geode to the camera.

next I create a quad and map the texture on it and add the quad as a child to the main scene.

I also add to change a thing in the wrapper given in OSGBindings.
I had to change from
fbo->glBindFramebuffer(GL_FRAMEBUFFER_EXT,0);
to
fbo->glBindFramebuffer(GL_FRAMEBUFFER_EXT, 2);
cause otherwise I was not getting anything rendered... don't know why and I don't understand if 2 is a random number or if there is any logic behind it.

Luca.

Good to know you have it working. If you also could provide a pull request to our github... Binding to 0 is working because that sample is rendering to the screen (default fbo, 0). If you had to change to 2 is probably because your OSG sample is using that handle for rendering. It shouldn't be hardcoded.

That part of the binding should be changed so that after doing renderer->Render() the following steps are done:

• Restore context state
• Set viewport
• Restore previous FBO

I have my code at work, but I will be back at work after xmas holidays... I will be happy to post a pull request on github with my code when I am back at work
I will also try to work out the other steps you suggest doing after the rendering and try to have it working

Thanks! We will also need help adapting the bindings to noesisGUI v1.2 because a few things changed in the API, apart from the new resources architecture.

Merry Christmas!