[vtkusers] black box around volume

[Thomas Faust]

I checked this, this wasn't the problem.

-- snip --
opacityTransferFunction->SetSegment( 1, 1.0, 255, 1.0 );
opacityTransferFunction->ClampingOff();
-- snip --

In the area that appears black instead of white are only voxels with the value 
0.0 (transparent).
Some other ideas?


On Tuesday 01 June 2004 02:50 pm, Lisa Avila wrote:
> Hello Thomas,
>
> Look at your color / opacity transfer functions. There are some values in
> your function that have a dark color and non-zero opacity, which is causing
> the "black box".
>
> Lisa
>
> At 01:55 PM 6/1/2004, Thomas Faust wrote:
> >I ran in a problem the other day.
> >I'm working with a own implementation of VTK and QT and get strange visual
> >effects.
> >When I try to renderer a volume i get a black box around my model. (the
> >background is set to white) This box moves with the model when I interact
> >with it. (The extent of the box looks like the part the renderer redraws)
> >
> >Did anybody had same effects before?
> >What could cause these effects?
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