void CompositionHandler::SetCompositorParameter(const std::string &compositorName, const QList< std::pair<std::string, Ogre::Vector4> > &source) const
{
// find compositor materials
Ogre::CompositorPtr compositor = c_manager_->getByName(compositorName);
if (compositor.get())
{
compositor->load();
for(uint t=0 ; t<compositor->getNumTechniques () ; ++t)
{
Ogre::CompositionTechnique *ct = compositor->getTechnique(t);
if (ct)
{
for(uint tp=0 ; tp<ct->getNumTargetPasses () ; ++tp)
{
Ogre:: CompositionTargetPass *ctp = ct->getTargetPass (tp);
SetCompositorTargetParameters(ctp, source);
}
SetCompositorTargetParameters(ct->getOutputTargetPass(), source);
}
}
}
}
bool Oculus::setupOgre(Ogre::SceneManager *sm, Ogre::RenderWindow *win, Ogre::SceneNode *parent)
{
m_window = win;
m_sceneManager = sm;
Ogre::LogManager::getSingleton().logMessage("Oculus: Setting up Ogre");
if(parent)
m_cameraNode = parent->createChildSceneNode("StereoCameraNode");
else
m_cameraNode = sm->getRootSceneNode()->createChildSceneNode("StereoCameraNode");
m_cameras[0] = sm->createCamera("CameraLeft");
m_cameras[1] = sm->createCamera("CameraRight");
Ogre::MaterialPtr matLeft = Ogre::MaterialManager::getSingleton().getByName("Ogre/Compositor/Oculus");
Ogre::MaterialPtr matRight = matLeft->clone("Ogre/Compositor/Oculus/Right");
Ogre::GpuProgramParametersSharedPtr pParamsLeft = matLeft->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
Ogre::GpuProgramParametersSharedPtr pParamsRight = matRight->getTechnique(0)->getPass(0)->getFragmentProgramParameters();
Ogre::Vector4 hmdwarp;
if(m_stereoConfig)
{
hmdwarp = Ogre::Vector4(m_stereoConfig->GetDistortionK(0),
m_stereoConfig->GetDistortionK(1),
m_stereoConfig->GetDistortionK(2),
m_stereoConfig->GetDistortionK(3));
}
else
{
hmdwarp = Ogre::Vector4(g_defaultDistortion[0],
g_defaultDistortion[1],
g_defaultDistortion[2],
g_defaultDistortion[3]);
}
pParamsLeft->setNamedConstant("HmdWarpParam", hmdwarp);
pParamsRight->setNamedConstant("HmdWarpParam", hmdwarp);
pParamsLeft->setNamedConstant("LensCentre", 0.5f+(m_stereoConfig->GetProjectionCenterOffset()/2.0f));
pParamsRight->setNamedConstant("LensCentre", 0.5f-(m_stereoConfig->GetProjectionCenterOffset()/2.0f));
Ogre::CompositorPtr comp = Ogre::CompositorManager::getSingleton().getByName("OculusRight");
comp->getTechnique(0)->getOutputTargetPass()->getPass(0)->setMaterialName("Ogre/Compositor/Oculus/Right");
for(int i=0;i<2;++i)
{
m_cameraNode->attachObject(m_cameras[i]);
if(m_stereoConfig)
{
// Setup cameras.
m_cameras[i]->setNearClipDistance(m_stereoConfig->GetEyeToScreenDistance());
m_cameras[i]->setFarClipDistance(g_defaultFarClip);
m_cameras[i]->setPosition((i * 2 - 1) * m_stereoConfig->GetIPD() * 0.5f, 0, 0);
m_cameras[i]->setAspectRatio(m_stereoConfig->GetAspect());
m_cameras[i]->setFOVy(Ogre::Radian(m_stereoConfig->GetYFOVRadians()));
// Oculus requires offset projection, create a custom projection matrix
Ogre::Matrix4 proj = Ogre::Matrix4::IDENTITY;
float temp = m_stereoConfig->GetProjectionCenterOffset();
proj.setTrans(Ogre::Vector3(-m_stereoConfig->GetProjectionCenterOffset() * (2 * i - 1), 0, 0));
m_cameras[i]->setCustomProjectionMatrix(true, proj * m_cameras[i]->getProjectionMatrix());
}
else
{
m_cameras[i]->setNearClipDistance(g_defaultNearClip);
m_cameras[i]->setFarClipDistance(g_defaultFarClip);
m_cameras[i]->setPosition((i*2-1) * g_defaultIPD * 0.5f, 0, 0);
}
m_viewports[i] = win->addViewport(m_cameras[i], i, 0.5f*i, 0, 0.5f, 1.0f);
m_viewports[i]->setBackgroundColour(g_defaultViewportColour);
m_compositors[i] = Ogre::CompositorManager::getSingleton().addCompositor(m_viewports[i],i==0?"OculusLeft":"OculusRight");
m_compositors[i]->setEnabled(true);
}
m_ogreReady = true;
Ogre::LogManager::getSingleton().logMessage("Oculus: Oculus setup completed successfully");
return true;
}