[vtkusers] [NEWBIE] shaded background etc

[Gerrick Bivins]

Hi Andrew,
If you just need the data storage and sci vis capability of VTK, I would
recommend using something like vtkActorToOSG/vtkActorToPF (
http://brighton.ncsa.uiuc.edu/~prajlich/vtkActorToPF/) to integrate  VTK
into your existing code base.

Those classes allow you to setup a VTK pipeline to create the vtkActors for
what you need and then converts them into OpenSceneGraph nodes or Performer
nodes( old skool!! ).

If you are using some other scenegraph, you can probably reference that code
to write a similar interface for your scenegraph.

We used this pretty extensively at my previous job ( http://www.vesuite.org/
) and it worked well.
 
 biv 
 

On 5/5/09 12:26 PM, "Andrew Cunningham" <andrewc at mac.com> wrote:

> Hi,
> I am a new VTK user - porting my own OpenGL based C++ scene graph to VTK to
> take advantage of the many powerful visualization capabilities. Unfortunately
> I have to keep the same 'look and feel' rather than starting with a clean
> slate and I am stumbling on a few things that I can't find answers to after
> searching MarkMail - I am trying to avoid trial-and-error!
> 
> - Our 3D window has a shaded background (done through openGL). A search for
> "shaded background" showed only 1 unanswered post on this topic in 2002 and it
> involved modifying a core VTK class using similar OGL commands. I can't see
> anyway to do this easily using VTK
> 
> - Attribute inheritance. I took a lot of advantage of "attribute inheritance"
> in my scene graph to control rendering. VTK does not seem to have this concept
> unlike most scene graphs. How do people deal with this?
> 
> - "Sticky small axes in lower left corner". I have small XYZ axes in the lower
> left corner that follow the rotations of the camera view matrix. This has to
> be easy. In my scene graph I did this through a separate glviewport in the
> window, but in VTK?
> 
> 
> Thanks 
> Andrew
> 
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