Re: [osg-users] thousands spheres renedering with OSG

Hi Robert, thanks for the explanation. I always confuse culling (not visible because it is out of the view frustum?) with occluding (not visible due to object being in front of it?). Best regards, Himar. 2009/7/2 Robert Osfield robert.osfi...@gmail.com Hi Himar, On Thu, Jul 2, 2009 at

Re: [osg-users] Read number of Pixels an object takes up

Hi guys, On 3/7/09 12:48 AM, Jeremy Warren wrote: -- From: Robert Osfield robert.osfi...@gmail.com Sent: Wednesday, July 01, 2009 3:18 AM To: OpenSceneGraph Users osg-users@lists.openscenegraph.org Subject: Re: [osg-users] Read number of Pixels an

[osg-users] Forum total crash :(

Hi folks, I am unhappy to say, but our server had today at night a total crash. None of our virtual machines is accessable from the outside and hence forum do also not work. I appologize for such circumstances and hope, yes I really hope, that the web-data doesn't get lost ;( I installed

[osg-users] rendering many instances of big Geometries

Hi all, There was a thread recently about rendering many instances of spheres (I didn't want to hijack the thread so I created a new one). Many methods were proposed among which there were opengl pseudo instancing and the draw_instanced extension. First I would like to know the main differences

Re: [osg-users] rendering many instances of big Geometries

Hi Loic, Optimizing drawing lots of large geometries depends upon lots of factors, both hardware and software. It really is a very open ended topic, so could you qualify what you mean by lots and large a bit more carefully, and also are the geometries all the same, same geometry/different state,

Re: [osg-users] rendering many instances of big Geometries

Thanks Robert for trying to get into the problem. I wanted to let it opened in order to get as many opinion/possible oprimizations as possible. To be truly honest I have a real problem with specific conditions. Many instances refers to hundreds of them. Large geometries are about 10 000 to 100

Re: [osg-users] rendering many instances of big Geometries

Hi Simon, On Fri, Jul 3, 2009 at 11:35 AM, Simon Loicsimon1l...@gmail.com wrote: Thanks Robert for trying to  get into the problem. I wanted to let it opened in order to get as many opinion/possible oprimizations as possible. I'm afraid we don't all have to time to write treaties on the

[osg-users] thousands spheres renedering with OSG

First of all I'd like to thanks all implied persons for the great support. As Robert said : Disabling culling will do nothing as the OSG already only does cull tests when subgraphs are partially culled - if the subgraph is entirely within the view frustum the view frustum test if switched off.

Re: [osg-users] [osgPlugins] osgEarth seed google maps particular location help

Ryan, Cannot help you on this one. Please read the following: http://maps.google.com/help/terms_maps.html http://wush.net/trac/osgearth/wiki/TileSourcePluginGoogle (Data Usage) Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Thu, Jul 2, 2009 at 3:38 PM, Ryan

Re: [osg-users] thousands spheres renedering with OSG

Beside of that,  my boss is not very keen to idea of vertex shader instancing for the reason of hardware limitations we should impose to our customers. To convince your boss: Vertex shaders even run even on Intel accelerated graphics (GMA 950) which is more than 3 years old since first

Re: [osg-users] Read number of Pixels an object takes up

Hi -- The client that funded the occlusion query work in OSG did not need to know the exact number of pixels, they just needed to know "visible or not visible". As a result, the current implementation hides the exact number of pixels. In retrospect, I probably should have implemented this so

Re: [osg-users] Read number of Pixels an object takes up

Ulrich Hertlein wrote: While we're on the subject: for simple objects, say a sphere or an AABB, shouldn't it be possible to do this calculation quicker on the CPU without going to the GPU? Isn't something like this done for small feature culling? Host computation has (by definition) no

[osg-users] Background image

Hi ! I m trying to put an image in background behind my 3D scene . the problem is that the 2d image is in middle of 3D scene . any sugestion to resolve this ? thks :) ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] Read number of Pixels an object takes up

Hi Paul, On 3/7/09 5:57 PM, Paul Martz wrote: Ulrich Hertlein wrote: While we're on the subject: for simple objects, say a sphere or an AABB, shouldn't it be possible to do this calculation quicker on the CPU without going to the GPU? Isn't something like this done for small feature culling?

Re: [osg-users] Background image

no, I m using hud but my 3d objects are behind the hud. I want my 3d objets in front of hud . ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Background image

Hi Carlos, you need to put the HUD in a render bin that is drawn before everything else. Setting the render bin to 0 or 1 should work (because I think other geometry would default to bin 2) The HUD also needs to be configured to not write to the z buffer. Christian

Re: [osg-users] Background image

turn off depth testing something like this: camera_-setViewport( 0, 0, image_-s(), image_-t() ); camera_-setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT ); // *** this is also pretty key ** camera_-setRenderOrder( osg::Camera::PRE_RENDER, 1 ); camera_-attach(

Re: [osg-users] osgManipulator refactored

Hi Guys, I've just checked in the addition of the following methods to Dragger that enable one to control when the draggers can be activated by clicking on them : void setActivationModKeyMask(unsigned int mask) { _activationModKeyMask = mask; } unsigned int

[osg-users] osgVolume now supports use of osgManipulator draggers

Hi All, I have just checked in an option -m to osgvolume that attaches a dragger to the volume tile, this allows you to change the portion of the volume that it renders, enabling you to interactively cull away parts you aren't interested in. For now I've enabled the TabBoxDragger, but the

[osg-users] Off on a weeks holiday!

Hi All, I'm just heading offline to complete my packing for a week family holiday on the beautiful Isle of Skye (part of the west coast of Scoltand.) I hope you all have fun in my absence ;-) Robert. ___ osg-users mailing list

Re: [osg-users] Off on a weeks holiday!

Robert Osfield robert.osfi...@gmail.com (03/07/2009): I'm just heading offline to complete my packing for a week family holiday on the beautiful Isle of Skye (part of the west coast of Scoltand.) Talisker's home! Enjoy. :) Cheers, -- Cyril Brulebois signature.asc Description: Digital

Re: [osg-users] Off on a weeks holiday!

Enjoy. ) 2009/7/4 Cyril Brulebois cyril.bruleb...@kerlabs.com: Robert Osfield robert.osfi...@gmail.com (03/07/2009): I'm just heading offline to complete my packing for a week family holiday on the beautiful Isle of Skye (part of the west coast of Scoltand.) Talisker's home! Enjoy. :)

Re: [osg-users] Off on a weeks holiday!

Enjoy:) 在2009-07-04，Robert Osfield robert.osfi...@gmail.com 写道： Hi All, I'm just heading offline to complete my packing for a week family holiday on the beautiful Isle of Skye (part of the west coast of Scoltand.) I hope you all have fun in my absence ;-) Robert.