Re: [osg-users] osgTerrain and dynamic Heightmaps

Hi Anders, On Wed, 17 Feb 2021 at 17:02, Anders Backman wrote: > I was wondering if there is any way of using the osgTerrain library by > feeding it with a dynamic (changing over time) heightmap? > I was thinking that most of the core features are there, including > the

[osg-users] osgTerrain and dynamic Heightmaps

Hi all. I was wondering if there is any way of using the osgTerrain library by feeding it with a dynamic (changing over time) heightmap? I was thinking that most of the core features are there, including the DisplacementMappingTechnique for quick tesselation. But perhaps this is completely out of

Re: [osg-users] osgTerrain::TerrainTile not in parental list (??)

Thanks Robert ! Very well explained ! Cheers! Nick On Tue, Dec 6, 2016 at 10:17 AM, Robert Osfield wrote: > Hi Nick, > > On 6 December 2016 at 05:38, Trajce Nikolov NICK > wrote: > > Hi Robert, Community, > > > > This might sounds

Re: [osg-users] osgTerrain::TerrainTile not in parental list (??)

Hi Nick, On 6 December 2016 at 05:38, Trajce Nikolov NICK wrote: > Hi Robert, Community, > > This might sounds stupid so I am apologize upfront. I spent some time > reading the code of TerrainTile and I am seeing it as a Group (right?). When > using NodeVisitors I

[osg-users] osgTerrain::TerrainTile not in parental list (??)

Hi Robert, Community, This might sounds stupid so I am apologize upfront. I spent some time reading the code of TerrainTile and I am seeing it as a Group (right?). When using NodeVisitors I am seeing the TerrainTiles as part of the scene. When I want to use it as ordinary Group it is not. For

Re: [osg-users] osgTerrain and CLAMP_TO_EDGE in ImageLayers?

> The current CLAMP_TO_EDGE approach requires me to modify the edge > pixels of that terrain tile to have a transparent color. Sorry, I meant to say "edge pixels of that image". I should proof-read my postings better. 2015-09-08 13:52 GMT+02:00 Christian Buchner :

[osg-users] osgTerrain and CLAMP_TO_EDGE in ImageLayers?

Hi all, I am questioning the hardcoded use for CLAMP_TO_EDGE texture wrapping modes in the osgTerrain/GeometryTechnique.cpp. Let's say that I wanted to add a high tes texture patch on some small location on a terrain tile. The current CLAMP_TO_EDGE approach requires me to modify the edge pixels

[osg-users] osgTerrain GeometryTechnique

Hi, I'm trying to load an heightfield and smooth it by adding a GeometryTechnique to the osgTerrain::TerrainTile. Since I didn't get it working I tried the osgthreadedTerrain example. Loading a heightfield or elevation from texture and modifying the filter used doesn't change anything there

[osg-users] osgTerrain retrieve geometry

Hi, I have a geocentric terrain database built by osgDEM of which I need the highest LOD as geometry in order to post process it in another toolchain. What I tried is to get the highest LOD subtiles and visit them with a NodeVisitor which will then convert the geodes. In order to do so I use

Re: [osg-users] osgTerrain retrieve geometry

Okay, I've found the solution myself. I simply use the transforms from getWorldMatrices on the group containing the geometry. cheers Sebastian Attached you'll find the obj produced by the nodevisitor and a screenshot. Thanks. Hi, I have a geocentric terrain database built by osgDEM of

Re: [osg-users] osgTerrain::getTile returns nothing

Hi Brad, well, than I might try to traverse the terrain first. But I just realized that Tileaccess might not be a solution for my problem (http://forum.openscenegraph.org/viewtopic.php?t=9416). @zonk: Terrain is a ref_ptr Object, not a normal pointer. -- Read this topic online

[osg-users] osgTerrain::getTile returns nothing

Hi, I want to access TerrainTiles, but I get always a 0 Pointer. Code: ref_ptrNode model=osgDB::readNodeFile(Filename.toStdString()); //try to convert the node to an osg::Terrain and analyse it ref_ptrosgTerrain::Terrain Terrain(model-asTerrain()); if(Terrain) { cout We have a terrain :)\n

Re: [osg-users] osgTerrain::getTile returns nothing

would have been loaded. Cheers, Brad -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Jonathan Klein Sent: Thursday, 24 November 2011 5:31 AM To: osg-users@lists.openscenegraph.org Subject: [osg-users

Re: [osg-users] osgTerrain::getTile returns nothing

Hi, by the way: *Terrain * annihilates itself - the adress of the content of an pointer is the pointer itself, so Terrain would be sufficient. Cheers, Torben -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44021#44021

Re: [osg-users] osgTerrain : how to invalidate subgraphs/tiles to enforce a reload?

On 6/15/2011 12:33 PM, Torben Dannhauer wrote: Can you help me and give a short overview how to preload a plugin? I see Robert already answered this. Additionally, do I have to open my loader to all file extensions? I tried it but that does not work, all subtiles are loaded then with the

Re: [osg-users] osgTerrain : how to invalidate subgraphs/tiles to enforce a reload?

Hi Chris, thanks for your input. 1. Thanks for your preload idea, but I had a unpleasant dicussion with robert (http://forum.openscenegraph.org/viewtopic.php?t=8538), because the term preloading is often named, but there is no information what this is in detail. Can you help me and give a

[osg-users] osgTerrain : how to invalidate subgraphs/tiles to force them to be reloaded?

Hi, I need an approach to modify osgTerrain at runtime. Therefore I implemented a pseudo loader, which acts transparent to the rest of the system and modifies the loaded height values. (to flatten the terrain around a selected airport) This approach works well, but it works not on run time,

Re: [osg-users] osgTerrain : how to invalidate subgraphs/tiles to force them to be reloaded?

On 6/13/2011 4:27 AM, Torben Dannhauer wrote: My current approach: Force/query the DB Pager to reload the affected tiles/subgraphs and apply the new modification algorithm while loading (again, via the pseudo loader). Everytime a modified tile is loaded, the alogrithm should replace in the

Re: [osg-users] osgTerrain : how to invalidate subgraphs/tiles to enforce a reload?

Hi Chris Yes I implemented already working prototype, but managing (especially reverting modifications) is not yet finished. The following lines describe what I have implemented so far. I have a pseudo laoder, which loads file with the suffix .terrainmod: 1. It strips the filename 2. Loads

Re: [osg-users] osgTerrain : how to invalidate subgraphs/tiles to enforce a reload?

On 6/13/2011 11:21 AM, Torben Dannhauer wrote: 1. If the node is a pagedLOG: Modify the entry and add to all paged filenames the .terrainmod suffix to ensure that they are also loaded via the pseudo loader. I did this too. It turns out not to be needed. If you pre-load your psuedoloader,

Re: [osg-users] osgTerrain: How to modify heightfield of a tile [solved]

Hi all, I solved this problem. To help others I'll explain my ideas here, so other can use this information as well. The wrong part in my structure was the function were I modified the height values. To explain my optionion of the right way, it is required to understand how the tiles are

[osg-users] osgTerrain: Terrain Class and TerrainTile Understanding

Hi, I am trying to use osgTerrain together with vpb to achieve dynamic terrain manipulation. After going through the interface for the various classes in osgTerrain, I have a few questions: (whether I have understood right or not) Using virtual planet builder (vpb) we generate a number of

Re: [osg-users] osgTerrain: Terrain Class and TerrainTile Understanding

Hi Sanat, I have not read the complete source code of VPB yet, but my current understanding is: Visualizing a VPB terrain, you only load the root file. This means, in the root file the next sublevel tiles must be noted down. So if we are zooming in, the viewer calculates the appropriate LOD

Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken?

HI Brad, What do you mean by ON_DEMAND rendering in osgTerrain? Is this an osgEarth feature, rather than an osgTerrain one? Robert. On Wed, Oct 20, 2010 at 12:01 AM, Brad Huber br...@procerusuav.com wrote: It appears that ON_DEMAND rendering is broken in osgTerrain as of rev 11307.  The

Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken?

Hi Robert, Brad is talking about OSG's ON_DEMAND mode to (osgviewer --run-on-demand). The setting of the setNumChildrenRequiringUpdateTraversal to get an update traversal in osgTerrain (as well in osgEarth) causes the frameloop to run continuously instead of only when something changes. So

Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken?

Beverage Sent: Wednesday, October 20, 2010 7:50 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken? Hi Robert, Brad is talking about OSG's ON_DEMAND mode to (osgviewer --run-on-demand). The setting of the setNumChildrenRequiringUpdateTraversal to get

Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken?

Hi Brad, On Wed, Oct 20, 2010 at 6:02 PM, Brad Huber In my working copy I've removed the setNumChildrenRequiringUpdateTraversal call and ON_DEMAND rendering in osgViewer works again.  I would not propose this as a fix because it probably broke something else and so that's why I'd like to see

Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken?

, October 20, 2010 12:37 PM To: OpenSceneGraph Users Subject: Re: [osg-users] osgTerrain -- ON_DEMAND rendering broken? Hi Brad, On Wed, Oct 20, 2010 at 6:02 PM, Brad Huber In my working copy I've removed the setNumChildrenRequiringUpdateTraversal call and ON_DEMAND rendering in osgViewer works

[osg-users] osgTerrain -- ON_DEMAND rendering broken?

It appears that ON_DEMAND rendering is broken in osgTerrain as of rev 11307. The offend lines appear to be the manual setting of numchildrenrequiringupdatetraversal in the constructors for osgTerrain::Terrain. We are using osgEarth (using osgTerrain) and would really like to use ON_DEMAND to

Re: [osg-users] osgTerrain

Hi, to render terrain in OSG, there are several methods. First of all you have to choose between preprocessing your terrain for high performance and rendering on demand for high flexibility and low performance. For the first method, you can use VirtualPlanetBuilder (an other project of OSG),

[osg-users] osgTerrain

Hi, I am trying to render a landscape in OSG. How do I do it? I can't find any tutorial on how to use osgTerrain. I have an image for the heightmap and an image (of the same resolution) for the texture of the entire landscape. Is a terrain engine in OSG that would use geomipmaping or anything

Re: [osg-users] osgterrain example and required input file

Could anyone provide an example of command line arguments to run Example_osgTerrain please? I have always got the error: No model created, please specify terrain or master file on command line. Thank you! Cheers, Ang -- Read this topic online here:

[osg-users] osgTerrain::ProxyLayer

Hi, a newbie question: what is the purpose of osgTerrain::ProxyLayer? Thank you! Cheers, Hartwig -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20913#20913 ___ osg-users mailing list

Re: [osg-users] osgterrain example and required input file

Hi Hartwig, osgterrain is primarily a unit test that I've used for testing and debugging of threading and osgTerrain usage, and the master file is part of this.The master file is simply a list of files for the models to load, so you could stick a range of models including ones like cow.osg

[osg-users] osgterrain example and camera position

Hi, I am calling the osgterrain example only with the argument --image land_shallow_topo_2048.jpg. The earth is now displayed on the left edge of my window/screen. If I am adding lines parallel to the coordinate axes x, y and z with a length of 10e6 the whole scene is centered. From my

Re: [osg-users] osgterrain example and camera position

Hi, sorry, I meant of course a length of 20e6 symmetric to (0, 0, 0). Thank you! Cheers, Hartwig -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20523#20523 ___ osg-users mailing list

[osg-users] osgterrain example and required input file

Hi, what kind of input file does the osgterrain example expect? BTW: what is a master file in this context?? Thank you! Cheers, Hartwig -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=20501#20501

Re: [osg-users] osgTerrain

Hi GuiYei, The osgterrain is a little complex due to it's illustration of custom paging and lots of command line parsing, but it is probably the best place to learn. Robert. 2009/4/15 GuiYe guiy...@163.com Hello,robert! Can you provide some examples about how to use the library of

[osg-users] osgTerrain

　　Hello,robert! 　　Can you provide some examples about how to use the library of osgTerrain except osgTerrain! The library is so complex that I don't know how to use it to render terrain data! Can you provide some documents about the library! On the other hand , I hope that the example of

Re: [osg-users] osgTerrain crashes without VBO support

Hi Maciej, This is very likely to be an ATI driver bug. It may be saying that it supports FBO's but totally screws them up. Robert. On Tue, Feb 10, 2009 at 10:32 AM, Maciej Krol mack...@gmail.com wrote: Hi all, I am testing trunk OSG on older devices. I've noticed that osgTerrain crashes

Re: [osg-users] osgTerrain Problem

Hi Ryan, On Tue, Dec 23, 2008 at 4:15 AM, Ryan Morris russell.co...@gmail.com wrote: Thanks guys for the quick responses! This is the kind of information you can't really come by going through the ref docs. I didn't know you could only use certain plugins could be used as heightfields. I

Re: [osg-users] osgTerrain Problem

Hi Ryan, You make no mention of what type of file you are trying to load. Only a small number of the OSG plugins support reading form heightfield, only two of which read height fields directly - these are the gdal and ive plugins. Robert. On Mon, Dec 22, 2008 at 12:29 AM, Ryan Morris

Re: [osg-users] osgTerrain Problem

　　Hi,Ryan 　　Can you tell me the type of file what you load?readHeightFieldFile is mainly based on GDAL plugins.You can have a good knowledge of GDAL in http://www.gdal.org. The website lists a lot of file types what can be read/written. 在2008-12-22，Ryan Morris russell.co...@gmail.com 写道：

Re: [osg-users] osgTerrain Problem

Thanks guys for the quick responses! This is the kind of information you can't really come by going through the ref docs. I didn't know you could only use certain plugins could be used as heightfields. I assumed it was like blender where you can load a bw image and it will create a height map.

[osg-users] osgTerrain Problem

I'm trying to wrap my head around osgTerrain. I try to use readHeightFieldFile and it keeps returning NULL. I admit I am not exactly clear on what time of file I should be loading, I assumed it was an image file but that doesn't work for me. If anyone could give me a little guidance here I'd

Re: [osg-users] osgTerrain::TerrainTile question

-users@lists.openscenegraph.org From: Coco [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] Date: 09/10/2008 05:55AM Subject: Re: [osg-users] osgTerrain::TerrainTile question 2008/9/10, Robert Osfield [EMAIL PROTECTED] : Hi Nicolas, I think you have got the wrong end of the stick. I

Re: [osg-users] osgTerrain::TerrainTile question

:20 +0200 From: [EMAIL PROTECTED] To: osg-users@lists.openscenegraph.org Subject: Re: [osg-users] osgTerrain::TerrainTile question Hey Brian, I found the old post you were takling about. I copied it below. But where is the link to the code? Best regards, Nicolas Duval [osg-users] Paged

Re: [osg-users] osgTerrain::TerrainTile question

Hi Nicolas, osgTerrain::TerrainTile was named osgTerrain::Terrain in 2.2. osgTerrain since 2.2 was evolved to be more rounded and functional, the naming was changed to better fit what goes on in big paged database, when the Terrain is composed of a hierarchy of TerrainTile. There is now a new

Re: [osg-users] osgTerrain::TerrainTile question

Thank you very much for your ideas! I found out the osgDB::DatabasePager class by reading old posts and it looks to fit my problem very well. By using TerraPage I will have to pre-process my databases, whereas with the database pager I don't need to. virtual void

Re: [osg-users] osgTerrain::TerrainTile question

Hi Nicolas, I think you have got the wrong end of the stick. I was suggesting TerraPage as an illustration of how cultural data (3d models) can be stored in with the tiles on disk. In vis-sim industry TerraPage is well known so I used it as as a case in point to save typing lots... FYI, The

Re: [osg-users] osgTerrain::TerrainTile question

2008/9/10, Robert Osfield [EMAIL PROTECTED]: Hi Nicolas, I think you have got the wrong end of the stick. I was suggesting TerraPage as an illustration of how cultural data (3d models) can be stored in with the tiles on disk. In vis-sim industry TerraPage is well known so I used it as as

Re: [osg-users] osgTerrain::TerrainTile question

Hi Nicolas, On Wed, Sep 10, 2008 at 10:55 AM, Coco [EMAIL PROTECTED] wrote: I think there is a missunderstanding. My problem is to load a big database, not to create it. I already have my database, fragmented in FLT files like I said. So I was suggesting to use DatabasePager to load flt

Re: [osg-users] osgTerrain::TerrainTile question

and you should see how to do it. Brian [EMAIL PROTECTED] wrote: - To: OpenSceneGraph Users osg-users@lists.openscenegraph.org From: Coco [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] Date: 09/10/2008 05:55AM Subject: Re: [osg-users] osgTerrain::TerrainTile question 2008/9/10, Robert Osfield

Re: [osg-users] osgTerrain::TerrainTile question

PROTECTED] Date: 09/10/2008 05:55AM Subject: Re: [osg-users] osgTerrain::TerrainTile question 2008/9/10, Robert Osfield [EMAIL PROTECTED] : Hi Nicolas, I think you have got the wrong end of the stick. I was suggesting TerraPage as an illustration of how cultural data (3d models) can

[osg-users] osgTerrain::TerrainTile question

Hi, I'm presently working on a car simulator using OSG 2.2 for the visual. My problem is that I would like to load big areas (such as entire cities or more) which are fragmented in several Open Flight files without loading all those files. I looked at the OSG documentation and found out the

Re: [osg-users] osgTerrain::TerrainTile question

Are you perhaps referring to paged LevelOfDetail (LOD) terrain? OSG database pager automatically processes these types of paged LOD terrains, and loads higher resolution tiles as you zoom in (or the opposite: lower reslution when zooming out). request your application to load your master.ive file

Re: [osg-users] osgTerrain and osgDEM...

Hi Shayne, osgTerrain functionality has evolve alot of the last six months, so not much is documented about it yet. VirtualPlanetBuilder has an option for building databases using standard nodes like osg::MatrixTransform/osg::Geode/osg::Geometry (which is the original and still default option)

Re: [osg-users] osgTerrain and osgDEM...

Hi, I think for a start, do not worry too much about osgterrain classes and the osgterrain example. Create a simple terrain using osgdem (search the list for command lines) and load it using osgviewer. The viewer loads terrain just as it loads normal objects. It constructs a Database Pager

Re: [osg-users] osgTerrain and osgDEM...

these errors? I've followed the instructions to the letter... -Shayne -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, May 23, 2008 2:05 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgTerrain and osgDEM... Hi Shayne

Re: [osg-users] osgTerrain and osgDEM...

] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, May 23, 2008 2:05 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgTerrain and osgDEM... Hi Shayne, osgTerrain functionality has evolve alot of the last six months, so not much is documented about it yet

Re: [osg-users] osgTerrain and osgDEM...

: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, May 23, 2008 9:13 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgTerrain and osgDEM... Its a a GDAL error. Try gdalinfo of the problem file. On Fri, May 23, 2008 at 4:11 PM, Tueller, Shayne R Civ USAF

[osg-users] osgTerrain::GeometryTechnique

Hi All, In the osgTerrain::GeometryTechnique buffer._transform is not added to scene graph explicitly using addChild, can any one tell me how it is then getting rendered. RJ ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] osgTerrain::GeometryTechnique

On Thu, May 22, 2008 at 2:38 PM, Rahul Jain [EMAIL PROTECTED] wrote: Hi All, In the osgTerrain::GeometryTechnique buffer._transform is not added to scene graph explicitly using addChild, can any one tell me how it is then getting rendered. It's all done by the

[osg-users] osgTerrain and osgDEM...

Hello, I'm new to OSG and I'm looking at the osgTerrain nodekit for terrain rendering. My question is, is how is this used with Virtual Planet builder (osgdem) for rendering terrain? Is VPB osgdem used to construct the terrain database and then osgTerrain used to traverse the terrain in OSG?

[osg-users] osgterrain

Hi, Which are the file formats supported by osgterrain? I tried running the osgterrain example using .osga, .ive and geotiff files without any success. Is their any info available about osgterrain in detail? Thanks in advance, Om ___ osg-users mailing

Re: [osg-users] osgterrain example broken.

Hi Rafa, Sorry about this, checked some changes in that I thought were fine, then went for a day out to the beach - it was sunny for the *whole* day, something which has only happened a couple of time this summer in the UK, so me and the family just had to head out :-) Fixes should now be

[osg-users] osgterrain example broken.

Hi Robert, I have just update the svn, and the example of osgterrain is broken, possibly by the change of TerrainNode to Terrain. The ReaderWritterTerrain.cpp needs to be upgraded too. I also realized that the wrapper of osgViewer is not compiling on Mac the problem is for an undefined symbol

Re: [osg-users] osgterrain example broken.

:[EMAIL PROTECTED] On Behalf Of Rafa Gaitan Sent: 8. august 2007 12:44 To: osg users Subject: [osg-users] osgterrain example broken. Hi Robert, I have just update the svn, and the example of osgterrain is broken, possibly by the change of TerrainNode to Terrain. The ReaderWritterTerrain.cpp needs

[osg-users] osgTerrain Tutorial

Hi, I'm new to OSG and I have a bit of problem wrapping my head around how to use osgTerrain and paged databases in general. I looked at the Quick Start Guide and there's no info. Is there an OSS app I can download to learn how to use osgTerrain? Thanks - Nick -

Re: [osg-users] osgterrain error

Hello Li Kong, I compiled the osgterrain example. But where is the terrain data? I think the data is from a image. what's the image's format ? bmp?rgb? Why are you e-mailing me directly for this? Your question should be posted to the OSG-Users mailing list - see