> What platform are you running on. From your message, it would appear > to be using Mesa for hardware rendering which is not a hardware mode > but a very optimized software rendering. You are absolutely right. The issue is resolved:
The story is this: The machine has a Matrox G450 Dualhead video card, and the linux system (kernel 2.4, XFree 4.0) had been tuned to use the hardware acceleration (using dri coming with X) a while ago. I simply (and wrongly!) assumed this would still work. As David points out correctly, this is not the case, and the system was using Mesa software rendering. I tracked this down to a configuration script having created a link of libGl.so to the wrong library. I fixed this (now the link points to the library that supports DRI) and the hardware acceleration now works. However, the only way for me to see that it works is to notice that using Hardware acceleration rendering is much faster (for example while rotating a complex image). I suppose there are no "quantitative" measures of acceleration? Anyway, sorry to bother the list with this issue: there was no problem with OpenDX, it was just my system not being properly set up. Sorry again, and best regards, Hans > >Hi Cracks, > > > >When I switch Image->Options->Rendering Options->Rendering Mode to > >Hardware, I get a message > > > >No default configuration 'mesa3.2' in init file > > > >in the message window. > > > >I have the feeling the display is slighlty quicker in Hardware mode, but > >not as impressive as I was hoping for. > > > >Could anyone give me a hint on > >- how to check that I am actually using hardware acceleration > >- and/or how to read the message above: is it an error? > > > >Many thanks in advance, > > > >Hans > > > > > >--------------------------------------------- > >Hans Fangohr > > > >University of Southampton > >Great Britain > >[EMAIL PROTECTED] > >---------------------------------------------- > > -- > ............................................................................. > David L. Thompson The University of Montana > mailto:[EMAIL PROTECTED] Computer Science Department > http://www.cs.umt.edu/u/dthompsn Missoula, MT 59812 > Work Phone : (406)257-8530 > ---------------------------------------------- Hans Fangohr High Performance Computing Group Department of Electronics and Computer Science Building 59, Level 3, Room 3237 and Quantum and Functional Matter Group Department of Physics and Astronomy University of Southampton Highfield Southampton SO17 1BJ Great Britain [EMAIL PROTECTED] ----------------------------------------------
