// ****************************************************************************
// Method: RenderTranslucent
//
// Purpose: Renders translucent geometry within a VisWindow.
// Expects that opaque geometry has already been rendered. In the
// IceT case, our work is a lot simpler because we don't need to
// read the image back from the framebuffer (we'll read it back from
// IceT later anyway).
//
// Programmer: Tom Fogal
// Creation: August 4, 2008
//
// Modifications:
//
// ****************************************************************************
avtDataObject_p
IceTNetworkManager::RenderTranslucent(int windowID, const avtImage_p& input)
{
VisWindow *viswin = viswinMap.find(windowID)->second.viswin;
CallProgressCallback("IceTNetworkManager", "Transparent rendering", 0, 1);
{
StackTimer second_pass("Second-pass screen capture for SR");
//
// We have to disable any gradient background before
// rendering, as those will overwrite the first pass
//
AnnotationAttributes::BackgroundMode bm = viswin->GetBackgroundMode();
viswin->SetBackgroundMode(AnnotationAttributes::Solid);
viswin->ScreenRender(
this->r_mgmt.viewportedMode,
true, // Z buffer
false, // opaque geometry
true, // translucent geometry
input // image to composite with
);
// Restore the background mode for next time
viswin->SetBackgroundMode(bm);
}
CallProgressCallback("IceTNetworkManager", "Transparent rendering", 1, 1);
//
// In this implementation, the user should never use the return value --
// read it back from IceT instead!
//
return NULL;
}
// ****************************************************************************
// Method: RenderGeometry
//
// Purpose: Renders the geometry for a scene; this is always the opaque
// objects, and may or may not include translucent objects (depending
// on the current multipass rendering settings).
// We override this method because we can avoid a readback in the
// one-pass case (we'll read it back from IceT later anyway).
//
// Programmer: Tom Fogal
// Creation: July 26, 2008
//
// Modifications:
//
// Tom Fogal, Mon Jul 28 14:57:01 EDT 2008
// Need to return NULL in the single-pass case!
//
// ****************************************************************************
avtImage_p
IceTNetworkManager::RenderGeometry()
{
VisWindow *viswin = viswinMap.find(this->r_mgmt.windowID)->second.viswin;
if(this->MemoMultipass(viswin))
{
return NetworkManager::RenderGeometry();
}
CallProgressCallback("IceTNetworkManager", "Render geometry", 0, 1);
viswin->ScreenRender(this->r_mgmt.viewportedMode, true);
CallProgressCallback("IceTNetworkManager", "Render geometry", 0, 1);
return NULL;
}