Re: [osg-users] [osgPlugins] OpenFlight - Palette Records prevent using of ReaderWriter Callback

Hi Paul, *You'd need to modify the OpenFlight plugin to support this.* I tried to do this but in the TexturePalette::readRecord function there is no way to know if a texture is used or not by the model. The only parameters we get from a texture (RecordInputStream) are : - the filename - the

Re: [osg-users] [osgPlugins] Texture Problem with osg Collada Plugin

Hi LiYang, I don't know from memory what features the Collada plugin in OSG 2.8.2 supports, but I can say that the importer has received more attention than the exporter. The Collada plugin is still being improved and the version currently integrated with the trunk supports more features than

[osg-users] Using HDRI to light models...

I'd like to use HDR images to light my 3D models, how can I achive this with OSG? Is there an example to start with? Thanks. Kind regards. Alessandro ___ osg-users mailing list osg-users@lists.openscenegraph.org

Re: [osg-users] [osgPlugins] Texture Problem with osg Collada Plugin

Hi Roland, Thank you for your reply,I have look into code in osg SVN.I found there is no update with the collada plugin writer. Anyone can help me with this ploblem? 在2010-03-02?16:13:41，Roland?Smeenk?roland.sme...@tno.nl?写道： Hi?LiYang,

Re: [osg-users] How to run OSG on iPhone(Mobile Device)?

Hi Donlin, 2010/3/2 xyc508 xyc...@163.com Now i am studing OpenGL ES among OPhong/iPhone/GPhone.it's a platform problem. I mean to build a web server,on this server ,store many .ive file,use mobile device to visit them. On PC ,it's easy,it only to write a plug-in for IE,but what to do for

Re: [osg-users] Using HDRI to light models...

Hi, do you already have HDR images? If so, look at the list of plugins, some of them support 8bit input. If not, you can create HDR textures using RTT cameras. See e.g. osgprerender. Do you want to use shaders or fixed pipeline? osgPPU has an HDR example you can also maybe look at. jp

[osg-users] Problem with glass door in front of glass shelf.

I'm guessing that this is an old computer graphics problem to do with depth sorting the drawing sequence of transparent objects, but I'm a bit puzzled why OSG is having a problem with this little example. Basically, in some views of a this example scene, the transparency is not working

Re: [osg-users] Problem with glass door in front of glass shelf.

Hi Chris, This is the classic problem with use and a depth buffer and depth sorting objects as whole objects rather than at the fragment level. You can tweak the sort algorithm and use further point, nearest point or mid point as the OSG uses and you'll best results with different sort values

Re: [osg-users] [osgPlugins] Texture Problem with osg Collada Plugin

On 02/03/2010 09:56, heishuijing_2000 wrote: Hi Roland, Thank you for your reply,I have look into code in osg SVN.I found there is no update with the collada plugin writer. Anyone can help me with this ploblem? Without knowing what it is you are trying to export it is

Re: [osg-users] Problem with glass door in front of glass shelf.

Thanks for the speedy reply Robert. :) Have you got any tips on how to tweak the sort algorithm? Would I have to change OSG, or are there options or callbacks I can set from outside. I'm sure you are right that the best thing to do would be to split the shelf, but the problem is that we have

Re: [osg-users] Problem with glass door in front of glass shelf.

Hi http://developer.nvidia.com/object/Interactive_Order_Transparency.html 2010/3/2 Chris Denham c.m.den...@gmail.com Thanks for the speedy reply Robert. :) Have you got any tips on how to tweak the sort algorithm? Would I have to change OSG, or are there options or callbacks I can set from

[osg-users] Job Opportunity: 3D Graphics Software Engineer (permanent role)

Dear Osg Users, This role requires an individual with formal qualifications in computer science and an excellent level of C++ to contribute to the continued development of Aimsun. To qualify for this position, you must have experience using OpenSceneGraph and implementing graphics algorithms.

Re: [osg-users] Problem with glass door in front of glass shelf.

Hi Maxim, Thanks for the link, a very interesting description of depth peeling technique (it's new to me). Though now I'm feeling a bit out of my own depth ;-) Am I right in thinking the implementation described here will only work on NVidia GeForce3 hardware? Cheers, Chris --

[osg-users] osgmovie http streaming over wireless on Windows

I've seen some answers for using ffmpeg on Linux systems. I would like to use my mobile Nokia N900's camera to stream (http or rtsp) over wireless to a Windows XP machine and then use the stream as an input to osgmovie, something like osgmovie --interactive http://10.1.1.1:8080;. Is this

Re: [osg-users] Using HDRI to light models...

Thank you for your suggestions, I'll have a look at osgPPU example... I already have some HDR images but, since I have no experience with HDRI, I'd like to know what possibilities I have in order to use them for lighting...for example I'd like to know about the 'high level' steps one has to

Re: [osg-users] osgmovie http streaming over wireless on Windows

Hi Mike, I don't know how u generate the stream. But osg use also support ffmpeg, may ffmpeg solve the problem you have - i use it under windows without problem. /adrian 2010/3/2 Mike Greene mgre...@hiwaay.net I've seen some answers for using ffmpeg on Linux systems. I would like to use my

Re: [osg-users] osgmovie http streaming over wireless on Windows

Hi, Mike Greene wrote: I've seen some answers for using ffmpeg on Linux systems. I would like to use my mobile Nokia N900's camera to stream (http or rtsp) over wireless to a Windows XP machine and then use the stream as an input to osgmovie, something like osgmovie --interactive

Re: [osg-users] Using HDRI to light models...

Hi, alessandro terenzi wrote: Thank you for your suggestions, I'll have a look at osgPPU example... I already have some HDR images but, since I have no experience with HDRI, I'd like to know what possibilities I have in order to use them for lighting...for example I'd like to know about the

Re: [osg-users] Problem with glass door in front of glass shelf.

Question 2: If, in a simple scene consisting of two non intersecting transparent triangles, it is always possible to find a correct order to draw them, then what is the algorithm that sorts them? Given that a single depth value for each triangle is insufficent to determine the correct order,

[osg-users] Text rendering order

Hi all, I am having a problem with text rendering for a simple HUD, here is what I am trying to do : - Create an HUD camera with a osg::Camera with an ortho 2D projection - Write a simple text with osgText - Put a quad above the text to hide the text So my scene graph looks like that :

Re: [osg-users] Easiest way to bundle an OSG app

I no lawyer either :) (thankfully) but some libraries do not allow static linking We had a long useful set of posts on the subject of static linking and its implications quite a while ago, a search of the archive might show those posts up and might or might not be useful to y'all For the

Re: [osg-users] Using HDRI to light models...

Hi Alessandro, when Googling look for Image Based Lighting (IBL) and light probe. IBL is typically done with a (HDR) cubemap. One for diffuse lighting and one for specular lighting. When combined with HDR postprocessing effects from the osgPPU example this can deliver pretty impressive visual

[osg-users] [osgOcean] Wind Effects

When I play with wind in osgOcean, so I can understand it better. I seem to have problems with wind direction and speed. When I use a wind direction of (2.0, 2.0), I'm seeing holes in the polygons using the standard osgOcean example. Can somebody tell me how wind direction is defined in

Re: [osg-users] Using HDRI to light models...

Hi Alessandro, For image-based lighting, you can have a look in the Orange Book (OpenGL Shading Language), chapter 12 (Lighting). There are some shaders for image-based lighting with a cube map, and you can use them with a HDR cube map (have a look in the osgvertexprogram for cube map

Re: [osg-users] Using HDRI to light models...

Is there an example in OSG that uses IBL? Alessandro On Tue, Mar 2, 2010 at 4:21 PM, Roland Smeenk roland.sme...@tno.nl wrote: Hi Alessandro, when Googling look for Image Based Lighting (IBL) and light probe. IBL is typically done with a (HDR) cubemap. One for diffuse lighting and one for

Re: [osg-users] Using HDRI to light models...

Thanks I'll have a look at osgvertexprogram. Regards. Alessandro On Tue, Mar 2, 2010 at 4:52 PM, josselin.pe...@lcpc.fr wrote: Hi Alessandro, For image-based lighting, you can have a look in the Orange Book (OpenGL Shading Language), chapter 12 (Lighting). There are some shaders for

Re: [osg-users] VPB generated normals

Hi Craig, The normals at task boundaries aren't presently equalised, nor are boundaries between different levels of detail. With textured models the artefact isn't too noticeable, but with straight geometry it's more pronounced as you have found. My plan to address this artifact has been to

Re: [osg-users] VPB generated normals

Thanks for the quick reply Robert. I intend to look into it as time allows; any hint on where to start? I'm not terribly familiar with osgTerrain. Craig On Mar 2, 2010, at 11:03 AM, Robert Osfield wrote: Hi Craig, The normals at task boundaries aren't presently equalised, nor are

[osg-users] (no subject)

Hello All, I am trying, for the first time, to export a Blender model into OSG - specifically, present3D. I have compiled OSG debug version with Collada, Exported a DAE from Blender 'eye.dae'. Run this in the standard plain vanilla way for present3D - within a slide/layer: slide

Re: [osg-users] Rapidly updating texture data

Oh my goodness ... did something really stupid. I was taking the camera image which is a non-power-of-2 (1024x768). It had to be scaled down to 1024x512. Doh! It's working quite well now. On 3/2/10, J.P. Delport jpdelp...@csir.co.za wrote: Hi Ben, I rechecked our code and we are using

Re: [osg-users] [osgPlugins] OpenFlight - Palette Records preventusing of ReaderWriter Callback

Alexandre Amalric wrote: Hi Paul, /You'd need to modify the OpenFlight plugin to support this./ I tried to do this but in the TexturePalette::readRecord function there is no way to know if a texture is used or not by the model. The only parameters we get from a texture (RecordInputStream)

Re: [osg-users] [forum] OSG Users in Korea

Hi. I am glad to see Koreans here. I am not Korean but I love your country. I want to go back again this year. :) -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25069#25069 ___ osg-users mailing

[osg-users] 64bit build works but osgDB::Registry::instance() fails in a plugin

Hi, We have been trying to get a 64bit build of osg and the dae plugin to run. We can build osg 64bit and osgviewer can view a dae file. So we believe we have the 64 bit osg osgdb and dae build and working. We have a plugin to our own framework that is linked with osg osgdb ... and in turn

[osg-users] OSG 2.9.6 GeometryTechnique and transparency

Robert, I just upgraded everything to 2.9.6. In the process I built one of our sensor capable databases which relies on data that is in the alpha channel of the terrain imagery. To my surprise, the terrain was no translucent. I found that in GeometryTechnique that a stateset is set for each

Re: [osg-users] 64bit build works but osgDB::Registry::instance() fails in a plugin

Actually the call to: osgDB::Registry::instance() does not return it crashes. -R -Reed http://www.linkedin.com/in/reedwhit -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=25073#25073

Re: [osg-users] [osgPlugins] OpenFlight - Palette Records prevent using of ReaderWriter Callback

Hi Alex, Have a look at Remo 3D (www.remograph.com) which supports removing unused textures in OpenFlight files very easily through scripting. A simple Lua script would let you remove unused textures in a large number of files. /Andreas On 2010-03-02 09:07, Alexandre Amalric wrote: Hi

Re: [osg-users] [ANN] OSG Virtual Planets, the core of gvSIG3D.

Hi Jordi, Well, I am back at square one again. Some how I was able to run the Examples application and get the former error message I showed you and I did find the vc90 files on my system. So, removed them from my system. I believe those files were installed when I attempted to install MySql

[osg-users] linking errors for building JP2 plugin

Dear all, Below is the linking error message when I tried to build the jp2 plugin with OSG-2.8.0 within VC++ 2005. I guess there is just something wrong with the setting of VC, but not sure. Please help if you know anything about those errors. Thanks! Linking... LIBCMTD.lib(crt0dat.obj) :

Re: [osg-users] linking errors for building JP2 plugin

Hi, It seems like you built libjasper with Multi-threaded Debug (/MTd) setting. Rather, you need to build it using the Debug multithreaded DLL (/MDd) setting. (In Project Properties, C/C++, Code Generation, Runtime library.) Mourad On Tue, Mar 2, 2010 at 10:51 PM, zhenlong li zxl1...@gmail.com

Re: [osg-users] [osgPlugins] Texture Problem with osg Collada Plugin

Hi LiYang I remember having issues with writing image files when writing dae files with the daeWriter. If memory serves me right I had to chdir into the same directory as the dae file for textures to write out correctly. I use relative paths. You may not need to do this if you use absolute

Re: [osg-users] 64bit build works but osgDB::Registry::instance() fails in a plugin

Hi Reed One thought did you build all of Collada in 64 bit including its required libs etc? I seem to remember when I did this a long time ago I had to build several libs that are used by the Collada chain myself they did not even have 64but projects etc.., as some of this are supplied only as

[osg-users] NodeVisitor for PagedLOD was RE: OSG 2.9.6 GeometryTechnique and transparency

Hi folks, Does anyone have an example of how one would implement the equivalent of a NodeVisitor for a PagedLOD object such that it visits all of the paged in LODs? -B -Original Message- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-

Re: [osg-users] Rapidly updating texture data

Ben Cain wrote: Oh my goodness ... did something really stupid. I was taking the camera image which is a non-power-of-2 (1024x768). It had to be scaled down to 1024x512. Doh! It's working quite well now. On 3/2/10, J.P. Delport wrote:

Re: [osg-users] Rapidly updating texture data

Hi Ben, Ben Cain wrote: Oh my goodness ... did something really stupid. I was taking the camera image which is a non-power-of-2 (1024x768). It had to be scaled down to 1024x512. I'm not sure if you are still scaling the image... If you are using Texture2D you can call