[vtkusers] vtkInteractorStyleRubberBandPick andwtkOpenGLRenderWindow::SetRGBACharPixelData problem

[Alex Malyushytskyy]

John,

vtkInteractorStyleRubberBandZoom demonstrates the same problem.
It looks like this is graphics card/driver problem.

I have ATI FireGl V3400 which already shown some weird effects when
running multiple application at the same time.
So this might be another problem.

I will try to test on the different computer with different graphics
card. It will just take a bit to rebuild everything n release.

Thanks,
    Alex


On Wed, Dec 2, 2009 at 2:00 AM, John Platt <jcplatt at dsl.pipex.com> wrote:
> Hi,
>
> The rubber band is drawn by XORing the pixel data ( R, G,  B ) with ( 255,
> 255, 255 )  leaving A unchanged - see RedrawRubberBand().  Try
> vtkInteractorStyleRubberBandZoom to test rubber band drawing. This uses
> SetPixelData() instead of SetRGBACharPixelData() to see if this makes any
> difference.
> HTH
>
> John.
>
>
> ----- Original Message ----- From: "Alex Malyushytskyy"
> <alexmalvtk at gmail.com>
> To: <vtkusers at vtk.org>
> Sent: Tuesday, December 01, 2009 11:15 PM
> Subject: Re: [vtkusers] vtkInteractorStyleRubberBandPick
> andwtkOpenGLRenderWindow::SetRGBACharPixelData problem
>
>
> Is anybody using vtkInteractorStyleRubberBandPick in vtk 5.4.2 stable
> under the Windows with Opengl without this problem?
>
> On Tue, Dec 1, 2009 at 1:31 PM, Alex Malyushytskyy <alexmalvtk at gmail.com>
> wrote:
>>
>> I am trying to implement picking within rectangular area using
>> vtkInteractorStyleRubberBandPick.
>> The problem I am facing is that the rectangle drawn is only visible
>> over the defined geometry.
>> It is not visible over the background:
>>
>>
>> __________________ ___
>> / / / Polygons
>> - - - - / =========|| /
>> | / || / ---
>> Selection rectangle ( invisible part )
>> - - - / ===========|| / === - selection
>> rectangle ( visible part)
>> /__________________/
>>
>> I narrowed problem to wtkOpenGLRenderWindow::SetRGBACharPixelData.
>>
>> Search on the web gave me the only possibly related problem at:
>> http://www.cmake.org/Bug/view.php?id=7236
>>
>> But this fix seems already at the version I am using: vtk 5.4.2 (
>> windows XP 64 )
>>
>> Any idea what can be wrong?
>> How to figure out is it a bug or problem with graphics card/driver?
>>
>> Thanks in advance,
>> Alex
>>
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