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 say the
DCMTK under Windows can be a bit tricky, have a look through the
archives to see how others tackled it.  I'm under Linux so don't see
problems.

Using dicom files is currently the easiest route to loading a full 3D
volume, but building the 3D osg::Image yourself it's difficult.  With
the osgvolume example you'll just have to run with --images filenames
to get it to read a series of 2D images and pack them into an 3D
osg::Image for rendering.

Robert.

On Fri, Jul 9, 2010 at 10:47 AM, Emmanuel Roche
<roche.emman...@gmail.com> wrote:
> 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 provided 2D images: so it's basically
> playinig just like a movie... Why would we have complex Raytracing  shader
> techniques just to render an image sequence ? I must be missing something
> here.
>
>
> Also, note that I actually managed to get a 3D rendering specifying zSize,
> ySize and xSize, but again the 3D result  is merly the projection of a
> single 2D image (an the image is dynamically changing...) I know the
> osgVolume still needs more development, but is that really all I can expect
> from it for the moment ??
>
> Also, I could not use DICOM images directly: I got errors from the dcmtk
> library, so I first used image magick to convert my dcm images to png
> images, could it be I lost "usefull 3D volumetric rendering info" with that
> step ?
>
> And last but not least, those tests were performed on Windows, with OSG
> 2.9.6. Any known limitation due to this ?
>
>
> In fact, if anyone as any screenshot I would be interested ! :-)
>
> Cheers,
> Manu.
>
>
>
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