[vtkusers] Problem adding 2 volumes

[Lisa S. Avila]

Hello Jose,

Rendering of overlapping volumes is not supported in VTK. You'll need to 
combine them into one volume before rendering.

Lisa


At 06:05 AM 11/29/02, jose manjon wrote:
>I add 2 volume to the renderer.
>
>the first one is a MR T1 head(256x256x165) and the second is only the brain
>parenchima segmented.
>
>to see the second that is inside on the first one I cut the first volume
>but the results are not always OK. if you se the volumes from above all is OK
>but if you rotate the some times visualization is not correct.
>
>I attach to images to explain what happens.
>
>can be this a bug, or simply I doing something wrong???
>
>thanks
>
>jose
>
>PD: I add two volumen this way:
>
>volumeLOD=vtkLODProp3D::New();
>id1=ExtravolumeLOD->AddLOD(lowresMapper,volumeProperty,0.0);
>id2=ExtravolumeLOD->AddLOD(medresMapper,volumeProperty,0.0);
>id3=ExtravolumeLOD->AddLOD(hiresMapper,volumeProperty,0.0);
>this->Renderer->AddVolume(volumeLOD);
>
>  ExtravolumeLOD=vtkLODProp3D::New();
>  eid1=ExtravolumeLOD->AddLOD(ExtralowresMapper,volumeProperty,0.0);
>  eid2=ExtravolumeLOD->AddLOD(ExtramedresMapper,volumeProperty,0.0);
>  eid3=ExtravolumeLOD->AddLOD(ExtrahiresMapper,volumeProperty,0.0);
>  this->Renderer->AddVolume(ExtravolumeLOD);
>
>
>                             \\|//
>                             (@ @)
>  +--------------------oOO----(_)----OOo-----------------------+
>  |                                                            |
>  |             Prof. Jose Vicente Manjón Herrera              |
>  |                                                            |
>  |             Group of Medical Bioinformatics                |
>  |             Department of Applied Physics                  |
>  |             Computer Science School                        |
>  |             Technical University of Valencia               |
>  |             Spain                                          |
>  |                                                            |
>  |             Email:jmanjon at fis.upv.es                       |
>  |                                                            |
>  +------------------------------------------------------------+
>                            |__|__|
>                             || ||
>                            ooO Ooo
>
>