Hi everyone,
For a new feature for the Drile instrument ( http://vimeo.com/15945215 ),
I have been trying for several days to get render to texture to work
using the fbotexture tutorial (with a multidisplaywindow).
I have a scene of several objects which should be rendered on a plane.
All I get is a black plane, I don't even see the gradient background.
No errors are displayed.
Does anyone have an idea ?
Here is my code :
//I setup the fbo texture, material and the stage
float fboWidth=640, fboHeight=480;
m_fboTexImg = OSG::Image::create();
m_fboTex = OSG::TextureObjChunk::create();
m_fbo = OSG::FrameBufferObject::create();
m_texBuf = OSG::TextureBuffer::create();
m_depthBuf = OSG::RenderBuffer::create();
m_fboTexImg->set(OSG::Image::OSG_RGB_PF, fboWidth, fboHeight);
m_fboTex->setImage(m_fboTexImg);
m_texBuf->setTexture(m_fboTex);
m_depthBuf->setInternalFormat(GL_DEPTH_COMPONENT24);
m_fbo->setColorAttachment(m_texBuf, 0);
m_fbo->setDepthAttachment(m_depthBuf);
m_fbo->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);
m_fbo->setWidth (fboWidth );
m_fbo->setHeight(fboHeight);
m_fbo->setPostProcessOnDeactivate(true);
m_fboMaterial = OSG::SimpleMaterial::create();
OSG::TextureEnvChunkRefPtr fboTexEnv =
OSG::TextureEnvChunk::create();
fboTexEnv->setEnvMode(GL_REPLACE);
m_fboMaterial->addChunk(m_fboTex);
m_fboMaterial->addChunk(fboTexEnv);
m_fboMaterial->addChunk(
OSG::StateChunkRefPtr(OSG::TwoSidedLightingChunk::create()));
m_fboMaterial->setSpecular(OSG::Color3f(0.7f, 0.7f, 0.7f));
m_fboMaterial->setDiffuse (OSG::Color3f(0.7f, 0.7f, 0.7f));
m_stage = OSG::SimpleStage::create();
m_stageNode = OSG::makeNodeFor(m_stage);
m_stageVisitCore = OSG::VisitSubTree::create();
m_stageNode->setCore(m_stageVisitCore);
m_stage->setRenderTarget(m_fbo);
m_stage->setSize(0.0f, 0.0f, 1.0f, 1.0f);
m_stageCam = OSG::PerspectiveCamera::create();
m_stageCamBeaconNode=OSG::Node::create();
m_stageCamBeaconNodeTrans=OSG::ComponentTransform::create();
m_stageCamBeaconNode->setCore(m_stageCamBeaconNodeTrans);
m_stageCamBeaconNodeTrans->setTranslation(OSG::Vec3f(0,0,20));
m_stageCam->setBeacon(m_stageCamBeaconNode);
m_stageCam->setNear(0.1f);
m_stageCam->setFar(1000.0);
m_stageCam->setFov(1.5);
m_stage->setCamera(m_stageCam);
OSG::GradientBackgroundRefPtr gb =
OSG::GradientBackground::create();
gb->addLine(OSG::Color3f(1, 1, 1), 0.0);
gb->addLine(OSG::Color3f(0, 0, 0), 1.0);
m_stage->setBackground(gb);
//then I add a node (parent of some nodes) as root of the visitsubtree
m_stageVisitCore->setSubTreeRoot(m_wormsRoot);
//finally I set the material to a geometry
m_virtualCameraGeom = OSG::makePlaneGeo(m_diameterSend*4,
m_diameterSend*4,1, 1);
m_virtualCameraGeom->setMaterial(m_fboMaterial);
Thank you
Regards
Florent
--
Florent Berthaut
-----------------------------
Research on Immersive Virtual Musical Instruments
Software for audiovisual performance
Improvised Live-Looped Electronic Music
-----------------------------
http://www.hitmuri.net
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