Hi Julian,
I have just had a bash at recreating issues and have found a volume
model that works in close enough dimensional space to the cessna.osg
that I start seeing problems with the rendering of the volume
occluding the cessna at times when it shouldn't and at certain angles
the parts of the c
I...have achieve something...
I removed line 394 in VolumeScene.cpp
Code:
viewData->_backdropSubgraph->accept(*cv);
and it works for me
but I can't tell if it's good A few doc on the underlying osgvolume design
would be cool...
mp3butcher wrote:
> Hi Robert et al
>
> It's been a while
Hi Robert et al
It's been a while I use a customized osgVolume::MultipassTechnique and
experienced a bug I think was coming from my code but in fact it affect
osgvolume application too.
It seams there a bug in texgen (or somerhing like that) when writing back Pre
rendered scene FB to the main
...And what's your question?
You should try playing with options of the osgvolume example .
Further it's good to know that the ive format is well fitted to store custom
Image3D..
Cheers
Trajce Nikolov NICK wrote:
> Hi Community,
>
> I am entering osgVolume for first time. Someone with some hint
Hi Community,
I am entering osgVolume for first time. Someone with some hints for this
core feature? Anything is welcome
And thanks a bunch as always!
Cheers,
Nick
--
trajce nikolov nick
___
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h
Robert,
The issue was I was setting a tileLocator, but I wasn't setting a
layerLocator. That was problematic in the following block of code:
Locator* layerLocator =
_volumeTile->getLayer()->getLocator();
if (tileLocator==layerLocator)
{
tileData->t
Hi Alex,
I haven't heard of the invert throwing a seg fault before. The stack trace
doesn't have any info about line numbers so we can't say what specifically
was amiss.
The only code in MultipassTechnique.cpp that calls Matrixd::invert() is:
Locator* tileLocator = _volumeTile->g
Also,
If it helps, I went and looked at the MultipassTechnique::cull method for
the use of invert, there is only one instance:
if (vs)
{
MultipassTileData* tileData =
dynamic_cast(vs->getTileData(cv, getVolumeTile()));
if (tileData)
{
Robert,
Here is a better looking stack trace on Linux. (I believe this stack trace
has gdb debug symbols enabled, it was a bit tricky to create and integrate
a build with DEBUG symbols in my environment here, apologies if I got it
wrong).
My guess is that the Matrixd object being inverted after t
Hi Alex,
A stack trace with debugging info would be far more useful and should be
able to pinpoint the cause of the crash, or at least give some clues of
where to look.
Also, does the osgvolume example crash when you use the MultiPassTechnique?
Robert.
On 26 April 2016 at 21:35, Alex Taylor wr
Hey all,
I'm running into a segmentation violation when I attempt to use
osgVolume::MultipassTechnique more or less as a drop in replacement for
RayTracedTechnique using OSG 3.4. My use of RayTracedTechnique works and
renders fine.
Here is an partial code listing demonstrating my use of Multipass
Thanks for your answer
I have already change my original post with an attached example but this update
doesnt appear in the mailing list
So i repost it for the mailing list
robertosfield wrote:
> Hi Julien,
>
> I have done a quick code review of MultipassTechnique and the
> computeRenderingMode
Thanks for your answer
I have already change my original post with an attached example but this update
doesnt appear in the mailing list
So i repost it for the mailing list
robertosfield wrote:
> Hi Julien,
>
> I have done a quick code review of MultipassTechnique and the
> computeRenderingMode
Hi Julien,
I have done a quick code review of MultipassTechnique and the
computeRenderingMode() could easily be changed to check for whether
the _volumeTile is set to avoid this specific crash, but I suspect the
root cause of the problem is elsewhere - a technique should have a
valid _volumeTile w
Hi,
First, excuse the lack of details of the further, i haven't been able to debug
enough to understand where the bug is...
So, I tried a simple scenario with the osgvolume::MultipassTechnique:
I initialize the volume rendering with MultipassTechnique (as in the example)
And at runtime I change
Hello Robert.
Thanks for your quick reply!
We´ll try to solve this problem ourselves then.
Regards.
Jesús.
2014-09-22 11:37 GMT+02:00 Robert Osfield :
> HI Jesus,
>
> osgVolume doesn't yet support multiple over-lapping volumes.
>
> To handle multiple intersecting volumes one will have to have
HI Jesus,
osgVolume doesn't yet support multiple over-lapping volumes.
To handle multiple intersecting volumes one will have to have the osgVolume
rendering back end and shaders handle both volumes at the same time where
the volumes overlap and separately handle the areas where only one volume
ha
Hi,
I am trying to get the intersection points between an intersection plane and a
terrain using osgUtil::PlaneIntersector。
The code is listed as following:
osg::Plane planeLeft( osg::Vec3(1,0,0), osg::Vec3(0+1,0,0) );//define an
intersetion plane
osg::Polytope polytopeLeft;//define the rang
Hi Jorden,
This behaviour is an artefact of the ray tracing implementation used in
osgVolume::RayTracedTechnique - the rays are generated from the back face
of the volume and if these fragments are culled by the z test nothing
appears, even if the complete ray would be in front of the z value in t
Hi Robert,
CLAMP_TO_BORDER is used so that if the shader lookup goes beyond the
bounds of the texture it doesn't get inappropriate data i.e back with
an alpha of zero at least will be culled by most shaders so will allow
the volume data to stand on it's own.
I can also see value in CLAMP_TO_EDGE
In openscenegraph-3.0.0/OpenSceneGraph/src/osgVolume/RayTracedTechnique.cpp the
3D texture is being clamped to a border color of (0,0,0,0).
It seems to me this should be CLAMP_TO_EDGE rather than CLAMP_TO_BORDER, since
using a border color not in the actual texture is completely arbitrary. I'm
Hi Clement,
On 27 July 2012 15:40, wrote:
>I tried osgVolume::SwitchProperty on testing code, but how to do to switch
> property during runtime? I added keyboard event. When 1 is pressed, it will
> call sp->setActiveProperty(1). I cannot see any change. Anyone know how to
> do? Thank
Hi,
I tried osgVolume::SwitchProperty on testing code, but how to do to switch
property during runtime? I added keyboard event. When 1 is pressed, it will
call sp->setActiveProperty(1). I cannot see any change. Anyone know how to
do? Thanks.
Regards,
Clement
__
Hi Clement,
On 14 May 2012 17:47, wrote:
> I am not new in programming but I am new in doing 3D work. I tried to
> generate a hugh colour map as 65535 colours and assign into
> osg::TransferFunction1D::ColorMap, but the colour display is not much better
> than I don't create colour map. I
rg] On Behalf Of Robert Osfield
> [robert.osfi...@gmail.com]
> Sent: Monday, 14 May 2012 9:07 PM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] osgvolume brightness and sample density
>
> Hi Clement,
>
> On 8 May 2012 08:44, wrote:
>> Thanks for your help. The col
o you know where I can find the
> code? Thanks again.
>
>
> Regards,
> Clement
>
>
>
>
>
>
> From: osg-users-boun...@lists.openscenegraph.org
> [osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
> [robert.osfi...
2 9:07 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume brightness and sample density
Hi Clement,
On 8 May 2012 08:44, wrote:
> Thanks for your help. The colour map in the osgvolume.cpp example contains
> specific colour. I would like to implement full range of colours as
Hi Clement,
On 8 May 2012 08:44, wrote:
> Thanks for your help. The colour map in the osgvolume.cpp example contains
> specific colour. I would like to implement full range of colours as possible
> supported by osg. Any idea what I can do to create a colour map of full
> range colours. T
From: osg-users-boun...@lists.openscenegraph.org
[osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Saturday, 5 May 2012 5:01 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume brightness and sample
HI Clement,
On 4 May 2012 19:30, wrote:
> Thanks again for your reply. I am a bit confused on using color map. I
> would like my program to support at least 8 bit color, so how should I create
> the color map? Where can I find more information? osgvolume.cpp does not
> have much details
...@gmail.com]
Sent: Friday, 4 May 2012 7:09 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume brightness and sample density
Hi Clement,
On 4 May 2012 08:46, wrote:
> Hi Robert,
>
>Sorry, I just saw your reply. Is TransferFunctionProperty used for
> define
Hi Clement,
On 4 May 2012 08:46, wrote:
> Hi Robert,
>
> Sorry, I just saw your reply. Is TransferFunctionProperty used for
> defined colour map?
>
> osg::ref_ptr transferFunction = new
> osg::TransferFunction1D;
> transferFunction->setColor(0.0, osg::Vec4(1.0,0.0,0.0,0.0));
_
From: osg-users-boun...@lists.openscenegraph.org
[osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Wednesday, 25 April 2012 2:30 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume brightness and sample densit
18-12 4:23 PM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] osgVolume not working with latest ATI Radeon drivers
on Windows
Hello OSG users,
osgvolume does not work for me with an ati card and found the following thread
in the archives which sounds
like the same issue but
Hi Clement,
You simply need to attach a TransferFunctionProperty to the Layer
assigned VolumeTile and set up this to map floating point intensity
value to the colour/alpha value required. The osgvolume has example of
it's setup.
Robert.
On 12 April 2012 03:52, wrote:
> Hi,
>
> I am using osgV
Hello OSG users,
osgvolume does not work for me with an ati card and found the following thread
in the archives which sounds
like the same issue but unfortunately without a solution:
http://forum.openscenegraph.org/viewtopic.php?t=8913&start=0&postdays=0&postorder=asc&highli
Hi,
I am using osgVolume to display my CT data. If I set the value of
SampleDensityProperty lower, I can get more details, but the brightness will
become darker or dull. Does any method that allow to use smaller value of
SampleDensityProperty and keep image colour brighter. I tried to use
Hi Clement,
On 5 March 2012 03:04, wrote:
> My program was using coin3D for volume rendering before. Now it is
> replaced with osg, but I still want the existing machine is able to run osg
> version. Last time you mentioned it is possible to implement a crude 3D
> volume rendering based
-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Friday, 2 March 2012 8:24 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Clement,
On 2 March 2012 04:12, wrote:
> The graphic details of this machine is Intel Q35 Express
Hi Clement,
On 2 March 2012 04:12, wrote:
> The graphic details of this machine is Intel Q35 Express Chipset. Is
> osgVolume not support this chipset?
I'm rather surprised that you'd even attempt volume rendering on such
in capble hardware.
Volume rendering is one of most challenging tasks f
Hi Clement,
On 2 March 2012 00:47, wrote:
> I have updated the driver on one of machines. The 3D texture message is
> gone, but I got other message.
>
> Warning: Could not find plugin to read objects from file
> "shaders/volume.vert".
> Warning: Could not find plugin to read objects from fil
[clement@csiro.au]
Sent: Friday, 2 March 2012 11:47 AM
To: osg-users@lists.openscenegraph.org
Subject: [ExternalEmail] Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Robert,
I have updated the driver on one of machines. The 3D texture message is
gone, but I got other message
Hello Clement,
One of the machines is using Intel E8300 Du e core 2.83 cpu with using on
board graphic. Another XP machine I created by virtual machine.
You're kind of setting yourself up for problems trying to get an
"advanced" technique like GPU ray tracing working on onboard graphics
rs
Subject: Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Clement,
On 1 March 2012 12:47, wrote:
> I think all my windows xp machines cannot support 3D texture. Is possible
> to force osg to use 2D texture on osgVolume? Thanks.
osgVolume is designed around 3D texturing, b
-users-boun...@lists.openscenegraph.org
[osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Friday, 2 March 2012 2:02 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Clement,
On 1 March 2012 12:47
Hi Clement,
On 1 March 2012 12:47, wrote:
> I think all my windows xp machines cannot support 3D texture. Is possible
> to force osg to use 2D texture on osgVolume? Thanks.
osgVolume is designed around 3D texturing, both the fixed function and
shader techniques use 3D textures. It would b
] On Behalf Of clement@csiro.au
[clement@csiro.au]
Sent: Thursday, 1 March 2012 11:32 PM
To: osg-users@lists.openscenegraph.org
Subject: [ExternalEmail] Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Robert,
If I set to use RayTracedTechnique, the output message shows below
Sent: Thursday, 1 March 2012 9:30 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Clement,
Check the console output from the OSG for errors, the OSG itself
doesn't create pop up for error reporting as it's a scene graph not a
user interface
ou need any information. Thanks.
>
>
> Regards,
> Clement
>
>
> ____________
> From: osg-users-boun...@lists.openscenegraph.org
> [osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
> [robert.osfi...@gmail.com]
> Sent
:59 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgVolume RayTracedTechnique problem
Hi Clement,
On 29 February 2012 14:26, wrote:
> My program is set to use RayTracedTechnique for display voxel. I tested
> the same program on windows XP and windows 7 machines. Only window
Hi Clement,
On 29 February 2012 14:26, wrote:
> My program is set to use RayTracedTechnique for display voxel. I tested
> the same program on windows XP and windows 7 machines. Only windows 7
> machine can display the image properly. In windows XP, it shows the cube
> filled with white c
Hi,
My program is set to use RayTracedTechnique for display voxel. I tested the
same program on windows XP and windows 7 machines. Only windows 7 machine can
display the image properly. In windows XP, it shows the cube filled with white
colour. I found out the problem is related to RayTr
i...@gmail.com]
> Sent: Friday, 17 February 2012 10:59 PM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] osgvolume performance
>
> Hi Clement,
>
> On 17 February 2012 01:53, wrote:
>> I am using MFC to display osg volume data. If the sample data is 30 * 30
&g
PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume performance
Hi Clement,
On 17 February 2012 01:53, wrote:
> I am using MFC to display osg volume data. If the sample data is 30 * 30 *
> 20 voxel, it is quite smooth on rotating the image on viewer. If the sample
> data is
Hi Clement,
On 17 February 2012 01:53, wrote:
> I am using MFC to display osg volume data. If the sample data is 30 * 30 *
> 20 voxel, it is quite smooth on rotating the image on viewer. If the sample
> data is 350 * 350 * 60 voxel, I can't rotate the image as smooth as before.
> If I us
Hi,
I am using MFC to display osg volume data. If the sample data is 30 * 30 *
20 voxel, it is quite smooth on rotating the image on viewer. If the sample
data is 350 * 350 * 60 voxel, I can't rotate the image as smooth as before. If
I used higher voxel data, the rotation become very hard
Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Tuesday, 14 February 2012 11:41 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume opacity settings
Hi Clement,
It could be a driver issue. It could be something else going. I
really can't tell. I know way too little about the sp
cp->addProperty(tp.get());
>
>
>
> Regards,
> Clement
>
>
>
> From: osg-users-boun...@lists.openscenegraph.org
> [osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
> [robert.osfi...@gmail.com]
> Sent: Friday, 10 February 2012 10:41
org
[osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
[robert.osfi...@gmail.com]
Sent: Friday, 10 February 2012 10:41 PM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume opacity settings
Hi Clement,
The pictures and your description don't provide sufficient
hanks.
>
>
> Regards,
> Clement
>
>
> From: osg-users-boun...@lists.openscenegraph.org
> [osg-users-boun...@lists.openscenegraph.org] On Behalf Of Robert Osfield
> [robert.osfi...@gmail.com]
> Sent: Thursday, 19 January 2012 8:05 PM
> To: OpenSceneGraph Users
>
Hi Clement,
On 18 January 2012 23:37, wrote:
> osgImage->setImage(nx, ny, nz, GL_RGB16F_ARB, GL_RGBA,
> GL_UNSIGNED_BYTE, (unsigned char*)data, osg::Image::NO_DELETE);
>
>
> My question is about the 4th parameter GL_RGB16F_ARB. It is very
> difficult to find out how this p
22 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume opacity settings
Hi Clement,
I really don't know what is going on at your end, what you are
expecting, what you've coded, there is no way I can provide any
answers.
Robert.
On 18 January 2012 17:31, wrote:
> HI Rober
@gmail.com]
> Sent: Thursday, 19 January 2012 4:15 AM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] osgvolume opacity settings
>
> Hi Clement,
>
> I can't work out specifically what you are expecting to happen. What
> coin does is something I have no experience
obert.osfi...@gmail.com]
Sent: Thursday, 19 January 2012 4:15 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] osgvolume opacity settings
Hi Clement,
I can't work out specifically what you are expecting to happen. What
coin does is something I have no experience with so can't comment on
eld
> [robert.osfi...@gmail.com]
> Sent: Monday, 16 January 2012 8:21 PM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] osgvolume opacity settings
>
> Hi Clement,
>
> On 16 January 2012 06:21, wrote:
>> My application is using osgvolume to display CT data.
Hi Clement,
On 16 January 2012 06:21, wrote:
> My application is using osgvolume to display CT data. There is class
> called CompositeProperty and there are three property classes
> (AlphaFuncProperty, SampleDensityProperty and TransparencyProperty) as well.
> I would like to know more de
Hi,
My application is using osgvolume to display CT data. There is class called
CompositeProperty and there are three property classes (AlphaFuncProperty,
SampleDensityProperty and TransparencyProperty) as well. I would like to know
more details of those classes and how to apply on osgvolu
000 * 50), osg still display the image, but it only shows party. Please see
> the attached images. Do you know any reason? Thanks.
>
>
> Regards,
> Clement
>
>
>
>
>
>
> From: osg-users-boun...@lists.openscenegraph.org
> [osg-users-boun...
Hi Clement,
I can't really make much sense from your post so can't make any
specific suggestions.
General comments I would add are that different graphics hardware
supports different Texture3D resolution, you have to keep within this
to be able doing volume rendering. Also if you don't set up th
Hi,
I got to display volume data problem on windows MFC before. I got an useful
information in this forum and now I have fixed the problem. When I tried
different test cases, I found the volume image cannot be shown probably if the
volume is large such as 1000*1000*20. It cannot show the
Thanks for that information. I have bought a nVidia GTX550Ti and that works
fine with 275.33 drivers in osgVolume. Both ATI cards remain an issue with
Catalyst 11.7 drivers.
Does the issue you linked to about array uniform naming apply to 3D Sampler
uniforms as well? If so I could try it out
This can be the same problem that exist with new Nvidia drivers, e.g.
disucssed here:
http://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg50871.html
John Ivar
On Sat, Aug 6, 2011 at 2:36 AM, Mark Hodson wrote:
> Hi all,
>
> This is one of those strange annoying ones, and I'm ho
Hi all,
This is one of those strange annoying ones, and I'm hoping some of you will
have some insight or pointers or suggestions on what might be wrong. I've
spent weeks on this myself, so I don't come to ask help from the forum
lightly...
I have been using osgVolume fine for years - Vista x6
Thanks Robert, I will try different options to see what I can come up with.
Cheers,
Naimul
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http://forum.openscenegraph.org/viewtopic.php?p=37629#37629
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osg-users@lists.opens
Hi Naimul,
It looks to me that all the intensities from the source imagery are
mapping to a large alpha value so little or no alpha blending is
taking place.
On the topic of normalization, the transfer function file is 5 fields,
I R G B A, where I is the intennity that you wish to map, followed b
This is the link to the tutorial from where I downloaded the color transfer
functions:
http://dlfresources.pbworks.com/w/page/17954901/How-to-:-build-a-volume
(couldn't post links before 2 posts, so posting the link separately).
--
Read this topic online here:
http://forum.opens
Hi Robert,
Thanks for your quick reply, good to know it can be done with osgVolume. I will
explain the problem I am facing in detail now:
1. I have tried to load some dicom images (provided by a doctor here) with the
following command:
osgvolume --images *.dcm
The images load without any issu
Hi Niamul,
I can't say anything abou the problems you having as you don't provide
any details about the transfer function you are using, what volume
rendering techniques and setings, or any screenshots you are using.
The only thing I can qualify is that the screenshots on the
DigitalLearning webs
Hi everyone,
Apologies for reviving an old thread. I have been playing around with osgvolume
recently and have been able to volume render set of dicom images. But I am
getting similar results as this thread's opener (i.e. the bounding box is still
there). I tried to tweak the 1D transfer functi
Hi all,
See screenshot for the result in osgVolume. Pretty darn cool. :-)
Oops, sorry, I hadn't realized that my screenshot was so big.
J-S
--
__
Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com
http://ww
Hi,
Hehe, now that you have succeeded at getting something, you start to get into
the problematics of volume rendering. Namely, to get a nice visual
representation, you have to provide a suitable transfer function. The example
uses some hard-coded transfer function (osgVolume supports only 1D T
Hi Manu,
You data DICOM data rendering suggests that the air around the subject
is returning a high intensity value rather than a low one. This is
not something I've seen with the DICOM datasets I've tested, so try
other data. A transfer function would certainly be one way to pick
out the data y
Hi Emmanuel,
If you are trying to create a stack of images as a single volume then
use the --images command line option.
Robert.
On Sat, Jul 17, 2010 at 1:50 PM, Emmanuel Roche
wrote:
> One very interesting detail concerning those osgVolume tests (still on
> Windows) by the way:
>
> I use a co
Hi,
I don't know which version of GDCM osg is using, or how well is it integrated.
You could check out ITK library (http://itk.org), it has an example (called
DicomReadImageWrite or similar) which can read dicom images and convert them to
other formats - I recommend .mha, because its header can
Concerning the DICOM issue, I performed additional tests:
- The error seems to be related to compressed DICOM datasets.
- On the website http://pubimage.hcuge.ch:8080/, most dataset will generate
errors ("Invalid data value") when trying to read the dcm files as is). the
PHENIX dataset works (it
Hi,
The command you used on linux should also work on windows. Don't have time to
investigate that right now, but you manged to get it to work, in some way.
Cheers,
Dženan
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=30097#30097
__
Okay guys !
I've just tested this on linux, and the command:
*osgvolume --raw 256 256 256 1 1 big bonzai.raw
worked just fine !!!
*So I guess this problem is only on Windows.
The good news is, I also did:
*osgvolume --raw 256 256 256 1 1 big bonzai.raw -o bonzai.dds [on linux]
*then used t
One very interesting detail concerning those osgVolume tests (still on
Windows) by the way:
I use a command like:
*osgvolume --test2 --shader --zSize 100 --window 50 50 600 400
CEMRA_HIGHRES\IM-0001-0001.png CEMRA_HIGHRES\IM-0001-0002.png
CEMRA_HIGHRES\IM-0001-0003.png ... [more files here] ...
C
Thanks for your help Dzenan,
but unfortunetaly, this is still not working (still get a crash and no
display), I used:
*osgvolume --raw 256 256 256 1 3 big bonzai.raw*
Note that I must specify the endianness and number of components (but I
tried multiple tests again), here is the help for the --r
Hi,
I don't think osg's data folder has anything to do with it.
I just took a look, and realized .pvm format is compressed. You can get gzipped
datasets from volvis.org, for example this 256x256x256 dataset:
http://www.gris.uni-tuebingen.de/edu/areas/scivis/volren/datasets/data/bonsai.raw.gz
T
Hello Dzenan!
i've just tried the website you suggested, downloaded the baby.pvm,
bonsai1.pvm and bunny.pvm datasets, and tried commands such as:
osgvolume --window 50 50 600 400 --raw 256 256 98 1 1 big baby.pvm
--> As I have no idea about the "numberOfcomponents" and "endianness" of
those file
Hi,
I have a working osgVolume used in my program - I use it as a preliminary
visualization. Since it has only 1D transfer function support, and does not
combine with polygonal models, in later stage I replace it with
isosurface+polygonal model.
My version is basically a simplified osgVolume e
Hi Manu,
It sounds like you aren't using osgVolume correctly. First up I would
recommend using 2.9.2 or svn/trunk as this will contain the latests
update to osgVolume.
Second up you talk about DCMTK build problems, you'll need to be more
precise that this for others to help. In general I would
Hi everyone,
I'm just starting to play with the osgVolume sample and I have a very
beginner question about it:
-> Can you actually have any kind of volumetric rendering with this ???
I perform many tests with various arguments, but each time, all I get is a
simple 2D image sequence of all the p
Hi,
If you are looking for fast isosurface generation, take a look at this thread:
http://forum.openscenegraph.org/viewtopic.php?t=5655
If that is what you need, I can give you the missing pieces of code (slightly
modified HPMC library). Code is for nVidia GPUs (ATI's approach to Transform
Feed
Hi Bill,
On Wed, May 12, 2010 at 3:54 PM, Poirier, Guillaume
wrote:
> I'd like to know if osgVolume can write an isosurface to a mesh file.
The isosurface shader in osgVolume does the compute of the isosurface
purely on the GPU for fragment, the only end result is the colour of
the final fragmen
Hi,
I'd like to know if osgVolume can write an isosurface to a mesh file.
cheers,
bill
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I was not able to get wild cards to work under Windows Vista OSG 2.8.2.
It did work with files listed on the command line explicitly. Also
loading files from a director worked with a command line like
osgvolume directoryName
When ran from the parent directory.
Jason
Johannes van Jaarsvel
Thanks Robert, will do so
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=17402#17402
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Hi Johannes,
On Tue, Sep 15, 2009 at 2:21 PM, Johannes van Jaarsveld <
jvjaarsv...@csir.co.za> wrote:
> I'm using OpenSceneGraph-2.8.2 on 64 bit Fedora 11
>
Could you try the svn/trunk version of the OpenSceneGraph as I've made a
number of improvements and bug fixes to osgVolume over the last fe
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