[Mesa3d-users] Speed of Mesa on a SGI

[Hugo K. <hug...@ds...>]

Hi,
I have an application built using VTK which uses opengl.
When running using opengl libaries on a sgi (r5000, 128Mb, irix 6.5) 
the application behaves as expected. I was asked whether it was 
possible to run the application via an X-Term (eXceed 5.0) and so I 
have tried using Mesa (3.1) instead of the opengl libaries. I have
two 
problems possibly related
 1 - There is a huge speed drop. On a simple model, e.g. a cube,
there 
is a delay in response of 10-15 seconds on a unloaded machine.
This occurs whether the application is being run on the sgi's own 
screen or on a XTerm.
I have tried setting MESA_BACK_BUFFER=p but it seems to make no 
difference

 2 - When run on the XTerm it seems to behave slightly more slugishly 
when the xterm is set to 256 colours.

Can anyone give any suggestions on how I can improve the situation.

Thanks 

Hugo