[vtkusers] Texture not displayed (NVIDIA problem?)

[Ken Martin]

My guess is that this is due to a texture size limitation in your
hardware. If VTK tries to draw too large of a texture map some
hardware will simply fail to draw the texture map. The result is a
white rectangle on the screen. Since 4.0 we have added logic in VTK to
handle this an break apart the texture into multiple smaller texture
maps that do fit within the graphics hardware's limitations.

Ken

> -----Original Message-----
> From: vtkusers-admin at public.kitware.com
> [mailto:vtkusers-admin at public.kitware.com]On Behalf Of
> David.Pont at ForestResearch.co.nz
> Sent: Monday, August 12, 2002 8:21 PM
> To: vtkusers at public.kitware.com
> Subject: Re: [vtkusers] Texture not displayed (NVIDIA problem?)
>
>
>
> I played around with Windows "Display Properties", under Settings |
> Advanced | Trobleshooting. I tried all the various positions on the
> Hardware Acceleration slider, starting on the default
> maximum and working
> backwards. Once I reached the second lowest setting
> ("Disable all but basic
> accelerations. Use this setting to correct more severe
> problems.") I got my
> textured images to display... but now the graphics performance is
> positively sloth-like...
> Hmmmm...
> Anyone have suggestions on how to remedy this? update
> drivers? magical vtk
> or OpenGL settings? give up and live with a lobotomised
> video card for vtk?
> join the masses and only use my PC for playing games ;-)
>
>   OK, I'm off to check the Dell / NVidia sites for driver
> updates or any
> other info..
>       Dave
>
>
>
>
>
>                     David.Pont at forestresear
>
>                     ch.co.nz                      To:
> vtkusers at public.kitware.com
>                     Sent by:                      cc:
>
>                     vtkusers-admin at public.k       Subject:
>    [vtkusers] Texture not displayed (NVIDIA problem?)
>                     itware.com
>
>
>
>
>
>                     13/08/2002 09:52
>
>
>
>
>
>
>
>
>
>
> Hi all,
>    I have a new Dell Latitude C610 notebook running Win
> 2000. The Graphics
> card is reported as: "NVIDIA GeForce 2 Go (Dell Mobile)". I have an
> application built with vtk 3.1 which uses the "texture on a
> plane" method
> of viewing iamges. Since moving to my new machine the
> images now just
> appear as a full white rectangle. Have tried TIFF (with and
> without alpha)
> and BMP with the same results.
> I checked the archives and there seem to be some issues
> around textures and
> NVIDIA GeForce cards but no specific information on this
> problem. Anybody
> able to shed some light on this?..  I want my pictures back...
>   thanks in advance
>      Dave Pont
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: <
> http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
>
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers