[vtkusers] Problem with rendering Volume and Textured Plane

[Schaap, J.A. (LKEB)]

Hi Niels,

I know the problem you're experiencing. It's exactly the way you decribed it over here... and it's also a "mystery" to me. I know this won't help you much, but I think it shows that at least you're bug could be (re)
produced somewhere else as well....


18-7-2002 9:48:46, "Niels Bakker" <n.h.bakker at amc.uva.nl> wrote:

>Hi Praveen,
>
>To my knowledge I am not using openGL. For the volume I am using a
>vtkVolumeRayCastMapper added to a vtkVolume. For the plane I'm using a
>vtkPolyDataMapper and a vtkTexture added to a vtkActor. Both are attached to
>the same vtkRenderer.
>
>Its still a mistery to me.
>
>Niels
>
>
>(-:-) -----Original Message-----
>(-:-) From: Praveen Bhaniramka [mailto:praveenb at gauri.engr.sgi.com]
>(-:-) Sent: Tuesday, July 16, 2002 6:24 PM
>(-:-) To: Niels Bakker
>(-:-) Cc: vtkusers at public.kitware.com
>(-:-) Subject: Re: [vtkusers] Problem with rendering Volume and
>(-:-) Textured Plane
>(-:-)
>(-:-)
>(-:-) Hi Niels,
>(-:-)
>(-:-) Not sure how you are rendering the volume (using the ray-caster or the
>(-:-) texture mapper), but this seems to be an OpenGL state issue. Make sure
>(-:-) that you have restored your OpenGL state (the state that you
>(-:-) modified like
>(-:-) blending functions, etc) after you render the volume data.
>(-:-)
>(-:-) Cheers,
>(-:-) Praveen
>(-:-)
>(-:-) On Tue, 16 Jul 2002, Niels Bakker wrote:
>(-:-)
>(-:-) > Hi,
>(-:-) >
>(-:-) > I'm trying to render a volume and a textured plane. The
>(-:-) texture on the plane
>(-:-) > disappears after the first render and it is replaced by an
>(-:-) image of the
>(-:-) > rendered scene. If I don't add the volume to the renderer
>(-:-) the textured plane
>(-:-) > works fine.
>(-:-) >
>(-:-) > It seems to be the same problem as was already described
>(-:-) earlier, but no
>(-:-) > solution was given:
>(-:-) >
>(-:-) > http://public.kitware.com/pipermail/vtkusers/2002-March/010279.html
>(-:-) >
>(-:-) > Can anyone help?
>(-:-) >
>(-:-) > Niels
>(-:-) >
>(-:-) >
>(-:-) >
>(-:-) > N.H.Bakker PhD
>(-:-) > Academic Medical Center
>(-:-) > Dept. of Medical Physics
>(-:-) > Meibergdreef 9
>(-:-) > 1105 AZ Amsterdam
>(-:-) >
>(-:-) > Phone: (+31) 20-566 8978
>(-:-) > Mail : n.h.bakker at amc.uva.nl
>(-:-) >
>(-:-) > _______________________________________________
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>--
>-----------------------------------------------------------------
>Praveen Bhaniramka               Member of Technical Staff (MTS)
>praveenb at sgi.com                 Advanced Graphics Division
>(650)933-1785                    Silicon Graphics, Inc.
>-----------------------------------------------------------------
>
>
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