VMD-L Mailing List

From: Pawel Wielgus (wielgus_at_mml.ch.pwr.wroc.pl)
Date: Fri Mar 09 2007 - 09:54:26 CST

Thanks for your reply.
When my VMD starts, one can read:

Info) ATI Linux driver detected, limiting features to avoid driver bugs.
Info) OpenGL renderer: MOBILITY RADEON X300 Generic
Info) Features: STENCIL MDE CVA MTX PP PS GLSL(OVF)
Info) GLSL rendering mode is NOT available.
Info) Textures: 2-D (2048x2048), 3-D (2048x2048x2048), Multitexture (8)

I really don't know what 'limiting features' mean. What I know for sure
is that I really had lots of troubles when compiling ATI fglrx drivers.
And I did it finally only against 2.6.10 kernel. But that's a long story...

What do you think? Any special features in fglrx configuration needed ?

Pawel

John Stone wrote:
> Pawel,
> Yes, the VolumeSlice representation has been available for some time
> and should work fine so long as you have a video card that supports
> 3-D (volumetric) texturing. You can check this by reading the VMD OpenGL
> related startup messages. You should see a texturing info line like
> the one I've pasted below:
> Info) OpenGL renderer: ZFB, VIS
> Info) Features: STENCIL MSAA(16) MDE MTX GAS
> Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)
>
> The important part of that status line is: "3-D (512x512x512)"
>
> What video chipset are you using? Have you checked to make sure
> that you're using the latest video driver available for your hardware?
>
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Fri, Mar 09, 2007 at 04:27:17PM +0100, Pawel Wielgus wrote:
>
>>Dear VMD Users,
>>
>>may I ask you a question concerning the visualization of volumetric data?
>>I have a simple example of density for CH4 (just for graphical testing)
>>in a Gaussian03 cube format. The volumetric data is read properly, and
>>using 'Drawing method = Isosurface' I can easily get the density.
>>
>>But as only I switch to 'Drawing method = VolumeSlice' everything
>>disapears. As far as I know the volume slices (along cartesian axis) are
>>possible with VMD-1.8.5.
>>
>>What wrong am I doing ? Should I switch any options on ? Could you give
>>me any hint?
>>
>>
>>Regards
>>
>>
>>Pawel Wielgus
>>
>>
>
>