[osg-users] Composite Viewer issue with QT

Hi, I'm working on a QT application that has several views / viewports onto a scene (different perspectives and projections). One of these needs to have a transparent QT HUD. I've spent a lot of time going over examples and archive posts, and it seems to me that the most up-to-date way to do

Re: [osg-users] osgViewerQT example question

I'm using the new version, under Linux (although I will eventually be testing under windows as well, I need it to work on Ubuntu first). Like I mentioned, I am trying to extend the example to fit into the QGraphicsView approach. Based on various guides and discussions that I have found, this

Re: [osg-users] osgViewerQT example question

I've made a couple of attempts, and I feel like I am very close... On one attempt, using a seperate osgViewer for each View, everything works but the Database Pager isn't happy about having multiple viewers looking at the same data. (osgEarth data under PagedLOD nodes flickers in and out of the

[osg-users] osgViewerQT example question

Hi, I'm looking at extending the osgViewerQT example by being able to add items to the QGraphicsView (by setting a QGraphicsScene and adding items to that). These items include some QT controls that need to be embedded in the window with transparency enabled. When I simply create the scene

[osg-users] QT and OSG openGL issues

Hi, I'm currently walking down the oft-treaded path of creating Qt Widget overlays on top of an OSG scene. I've been doing a lot of reading and searching over the archives, and it seems like there are 2 main approaches. Eveything I can find on the topic is 3-5 years old, however, so I was

[osg-users] Event handler Priority

Hi, Is there any way to specify the order that your event handlers / camera manipulator will see events? In my application, under certain circumstances, I want to override the default left-click behavior from camera manipulation to something else. Thank you! Cheers, Nick --

Re: [osg-users] OSG Pick Tex Coords

Thanks Robert, My branch is using 3.0.1, which did not have that functionality, but I was able to piece it together from the implementation in 3.2.0, since it doesn't appear that we are upgrading any time soon. Thanks for the pointer-works just the way I hoped! Thank you! Cheers, Nick

Re: [osg-users] RTT Magnifying Glass with multiple zooms

I ended up solving 1 and 2 by using a single texture for the RTT to render the whole window, then setting the drawable's tex coords such that each quad zoomed in on the appropriate area. I haven't decided what to do about the resizing, but it doesn't seem to be stretching the texture (which I

[osg-users] OSG Pick Tex Coords

Is there a quick/convenient way to get the tex-coord for the vertex/drawable returned from an intersection (i.e. the way that osgpick example returns the vertex world and local coordinates)? Or do you have to compute the tex coord yourself? Cheers, Nick -- Read this topic

Re: [osg-users] osgQt QWidgetImage as HUD not getting events

In case anyone comes across this, I ended up solving the problem by subclassing the InteractiveImageHandler, QWidgetImage, and QGraphicsViewAdapter. I had to get the InteractiveImageHandler to do the right coordinate projection for the the clicks, and I had to get the QWidgetImage and

[osg-users] RTT Magnifying Glass with multiple zooms

Hi, I'm working on a zoom/magnifying lens feature, that I am implementing using RTT. I'm setting up a slave camera to the main view and rendering to a texture, which I place on a quad on the HUD. I've got a few questions: 1. Whats the best way to move the slave camera to magnify different

Re: [osg-users] osgQt QWidgetImage as HUD not getting events

I've managed to get the HUD to process events. The problem is that it is now capturing all events, and I cannot use the camera manipulators underneath the HUD. It seems to be the case that the InteractiveWidgetHandler is always returning true, because the widget is full-screen and thus always

Re: [osg-users] osgQt QWidgetImage as HUD not getting events

I have tried adding the InteractiveImageHandler to the view that I want to handle them, but they still do not get any events. Any other suggestions? Cheers, Nick -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59038#59038

Re: [osg-users] osgQt QWidgetImage as HUD not getting events

I found that I was using the wrong constructor for the Interactive Image Handler, I think; It seems that the IIH expects the image to either be part of the scene OR be a full screen HUD, not the sort of half-and-half that I have. Using the other constructor for the IIH, one of my widgetImages

[osg-users] osgQt QWidgetImage as HUD not getting events

I have a Composite Viewer setup with multiple views/cameras, and a 2D Ortho HUD camera that I add to the root node of my scene to render HUD elements. One of these elements is a textured quad with a QWidgetImage. I set up the InteractiveImageHandler and gave it to the drawable as event and cull

Re: [osg-users] Composite Viewer framerate multiple cameras on large data

Hi, I tracked this down to a driver issue, I think; I'm running on a laptop with Nvidia Optimus graphics using Ubuntu 12.04, and support for the dual-gpu is a little wonky. I reconfigured my drivers, xorg headers, and bumblebee optimus support, and got everything working happily. Thank you!

Re: [osg-users] Composite Viewer framerate multiple cameras on large data

nsm4d wrote: Hi, I pulled the osgviewerQt example code into my project, and built and ran that. 3 out of 4 times, it runs fast (~60 fps), however, sometimes it runs slowly (~7 fps). So I don't think that the problem is my dataset or viewer setup. Attached are the stats when it runs fast

[osg-users] Composite Viewer framerate multiple cameras on large data

Hi, I have a scene graph set up with a large dataset ( A Geocentric Earth from osgEarth). In my composite viewer, I want to have multiple viewpoints (with separate camera manipulators/projection matrices; ie. an Orthographic, perspective, etc) each within a QT widget. I got this set up the

[osg-users] Primitive colors overwriting textured quad

Hi, I have a simple scene where I create a textured quad, and then add some simple objects to it (spheres, lines, etc). Using the ubuntu distro OSG (3.0.0 I believe), this was working fine. When I upgraded to 3.3.0, adding the new objects now seems to overwrite the colors in the texture - for

[osg-users] [vpb] osgdem and HAE/MSL

Hi, When providing elevation data to osgdem. is it expected to be in HAE (height above ellipoid), or MSL (mean sea level), or can it tell from the input? For example, I am providing elevation data in the AIG/Arc/Info Binary Grid format (.adf). The data represents the elevation of the area in