void MyExaminerViewer::actualRedraw()
{
// Must set up the OpenGL viewport manually, as upon resize
// operations, Coin won't set it up until the SoGLRenderAction is
// applied again. And since we need to do glClear() before applying
// the action..
const SbViewportRegion vp = this->getViewportRegion();
SbVec2s origin = vp.getViewportOriginPixels();
SbVec2s size = vp.getViewportSizePixels();
glViewport(origin[0], origin[1], size[0], size[1]);
const SbColor col = this->getBackgroundColor();
glClearColor(col[0], col[1], col[2], 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Render our scenegraph with the image.
SoGLRenderAction * glra = this->getGLRenderAction();
glra->apply(this->bckgroundroot);
// Render normal scenegraph.
SoQtExaminerViewer::actualRedraw();
// Increase arrow angle with 1/1000 every frame.
// arrowrotation->angle = arrowrotation->angle.getValue() + (0.001 / M_PI * 180);
// Render overlay front scenegraph.
glClear(GL_DEPTH_BUFFER_BIT);
glra->apply(this->foregroundroot);
}
void SoXipGetCameraProperties::GLRender(SoGLRenderAction* action)
{
/*
SbMatrix mMV = SoModelMatrixElement::get(action->getState()) * SoViewingMatrixElement::get(action->getState());
SbMatrix mv = mMV.transpose();
mv = mv.inverse();
SbVec3f cc(0.0,0.0,0.0);
SbVec3f wc;
mv.multMatrixVec(cc, wc);
*/
SbViewVolume vv = SoViewVolumeElement::get( action->getState() );
mCamPos = vv.getSightPoint(0.0);
if (mCamPos != camPos.getValue())
camPos.setValue( mCamPos );
mCamDir = vv.getSightPoint(1.0) - vv.getSightPoint(0.0);
if (mCamDir != camDir.getValue() )
camDir.setValue( mCamDir );
SbViewportRegion vpr = SoViewportRegionElement::get( action->getState() );
SbVec2s orig = vpr.getViewportOriginPixels();
SbVec2s wh = vpr.getViewportSizePixels();
SbVec4f vp = SbVec4f( (float)orig[0], (float)orig[1], (float)wh[0], (float)wh[1] );
mViewport = vp;
if (mViewport != viewport.getValue())
viewport.setValue( mViewport );
}
void SoViewportRegion::setViewportRegion(const SbViewportRegion vp)
{
SbVec2s winSize;
viewport.setViewport(vp.getViewportOrigin(), vp.getViewportSize());
viewport.setWindowSize (vp.getWindowSize());
viewport.setViewportPixels(vp.getViewportOriginPixels(),
vp.getViewportSizePixels());
}
/*!
Update our SoGLRenderAction's viewport settings.
This will change \e both the information about window dimensions and
the actual viewport size and origin.
\sa setWindowSize()
*/
void
SoSceneManager::setViewportRegion(const SbViewportRegion & newregion)
{
#if COIN_DEBUG && 0 // debug
const SbVec2s & ws = newregion.getWindowSize();
const SbVec2s & vpop = newregion.getViewportOriginPixels();
const SbVec2s & vpsp = newregion.getViewportSizePixels();
SoDebugError::postInfo("SoSceneManager::setViewportRegion",
"windowsize=(%d, %d) "
"viewportorigin=(%d, %d) "
"viewportsize=(%d, %d) ",
ws[0], ws[1],
vpop[0], vpop[1],
vpsp[0], vpsp[1]);
#endif // debug
PRIVATE(this)->rendermanager->setViewportRegion(newregion);
PRIVATE(this)->eventmanager->setViewportRegion(newregion);
}