Re: [Nel] GNU/Linux compilation patches

[Lars Weber]

Loic Dachary <address@hidden> wrote:
>       You could try /tilenear 0.1 while in game. It is reported to 
> accelerate significatly on a G400. It is of no help if you have an
> opengl driver that accelerates the calculations that are saved by reducing
> this value.

I've tried /tilenear, and it seems to have at least a little effect:
something of up to 2 (though the framerate is a little bit too jumpy to
say exactly).

>       I'd be interested to know if you're using a Free Software driver
> for the Voodoo 4. Since you have a rather poor framerate, I guess it's the
> case. Could you provide the output of glxinfo ? 

Sure:

| name of display: :0.0
| display: :0  screen: 0
| direct rendering: Yes
| server glx vendor string: SGI
| server glx version string: 1.2
| server glx extensions:
|     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
| client glx vendor string: SGI
| client glx version string: 1.2
| client glx extensions:
|     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
| GLX extensions:
|     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
| OpenGL vendor string: VA Linux Systems, Inc.
| OpenGL renderer string: Mesa DRI Voodoo4 20010501 x86/MMX/3DNow!
| OpenGL version string: 1.2 Mesa 3.4.2
| OpenGL extensions:
|     GL_ARB_multitexture, GL_ARB_transpose_matrix, GL_EXT_abgr, 
|     GL_EXT_clip_volume_hint, GL_EXT_compiled_vertex_array, GL_EXT_histogram, 
|     GL_EXT_packed_pixels, GL_EXT_paletted_texture, GL_EXT_polygon_offset, 
|     GL_EXT_rescale_normal, GL_EXT_stencil_wrap, GL_EXT_texture3D, 
|     GL_EXT_texture_env_add, GL_EXT_texture_env_combine, 
GL_EXT_texture_object, 
|     GL_EXT_texture_lod_bias, GL_EXT_vertex_array, GL_HP_occlusion_test, 
|     GL_MESA_window_pos, GL_MESA_resize_buffers, GL_NV_texgen_reflection, 
|     GL_PGI_misc_hints, GL_SGI_color_matrix, GL_SGI_color_table, 
|     GL_SGIS_pixel_texture, GL_SGIS_texture_edge_clamp, GL_SGIX_pixel_texture
| glu version: 1.3
| glu extensions:
|     GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess
| 
|    visual  x  bf lv rg d st colorbuffer ax dp st accumbuffer  ms  cav
|  id dep cl sp sz l  ci b ro  r  g  b  a bf th cl  r  g  b  a ns b eat
| ----------------------------------------------------------------------
| 0x23 24 tc  0 24  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
| 0x24 24 tc  0 24  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
| 0x25 24 tc  0 24  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
| 0x26 24 tc  0 24  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
| 0x27 24 tc  0 24  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
| 0x28 24 tc  0 24  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
| 0x29 24 tc  0 24  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
| 0x2a 24 tc  0 24  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
| 0x2b 24 dc  0 24  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
| 0x2c 24 dc  0 24  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
| 0x2d 24 dc  0 24  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
| 0x2e 24 dc  0 24  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
| 0x2f 24 dc  0 24  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
| 0x30 24 dc  0 24  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
| 0x31 24 dc  0 24  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
| 0x32 24 dc  0 24  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow

As you have rightly guessed it is all Free Software -- just like the rest
of my system :-).  And the card worked almost out of the box.  IIRC I only
had to install the xlibmesa3 package to get acceleration working.

>       I found noticeable enhancement in xfree-4.2, you may want to switch
> to it. Or wait that it pops in unstable.

According to Branden's X Strike Force page, XFree4.2 packages shouldn't be
that far of into the future.  As I don't really feel the desire currently
to start meddling with my X setup, I think I'll go with the latter option
:-)

Gruss,
Lars

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