[GRASSLIST:531] Re: nviz with transparency is horrible slow

[Wolfgang]

Hello Glynn,

I get following output, but when I understand right "direct rendering: 
No" is the important message.

Cheers
Wolfgang

name of display: 127.0.0.1:0.0
display: 127.0.0.1:0  screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
     GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
     GLX_EXT_import_context, GLX_OML_swap_method, 
GLX_SGI_make_current_read,
     GLX_SGIS_multisample, GLX_SGIX_hyperpipe, GLX_SGIX_swap_barrier,
     GLX_SGIX_fbconfig
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions:
     GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory,
     GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method,
     GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_control,
     GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig,
     GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
GLX extensions:
     GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
     GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
     GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_fbconfig,
     GLX_SGIX_visual_select_group
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: MOBILITY RADEON 9700 x86/SSE2
OpenGL version string: 1.2 (1.5.4647 WinXP Release)
OpenGL extensions:
     GL_ARB_depth_texture, GL_ARB_multitexture, GL_ARB_point_parameters,
     GL_ARB_point_sprite, GL_ARB_shadow, GL_ARB_shadow_ambient,
     GL_ARB_texture_border_clamp, GL_ARB_texture_cube_map,
     GL_ARB_texture_env_add, GL_ARB_texture_env_combine,
     GL_ARB_texture_env_crossbar, GL_ARB_texture_env_dot3,
     GL_ARB_texture_mirrored_repeat, GL_ARB_texture_rectangle,
     GL_ARB_transpose_matrix, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra,
     GL_EXT_blend_color, GL_EXT_blend_func_separate, GL_EXT_blend_minmax,
     GL_EXT_blend_subtract, GL_EXT_clip_volume_hint,
     GL_EXT_draw_range_elements, GL_EXT_fog_coord, 
GL_EXT_multi_draw_arrays,
     GL_EXT_packed_pixels, GL_EXT_point_parameters, GL_EXT_rescale_normal,
     GL_EXT_secondary_color, GL_EXT_separate_specular_color,
     GL_EXT_shadow_funcs, GL_EXT_stencil_wrap, GL_EXT_texture3D,
     GL_EXT_texture_edge_clamp, GL_EXT_texture_env_add,
     GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
     GL_EXT_texture_lod_bias, GL_EXT_texture_object, 
GL_EXT_texture_rectangle,
     GL_EXT_vertex_array, GL_ATI_texture_env_combine3,
     GL_ATI_texture_mirror_once, GL_ATIX_texture_env_combine3,
     GL_HP_occlusion_test, GL_IBM_texture_mirrored_repeat,
     GL_INGR_blend_func_separate, GL_NV_blend_square, 
GL_NV_texgen_reflection,
     GL_NV_texture_rectangle, GL_SGIS_generate_mipmap,
     GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp,
     GL_SGIS_texture_lod, GL_SGIX_shadow_ambient, GL_SUN_multi_draw_arrays
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
----------------------------------------------------------------------
0x22 24 tc  1 24  0 r  .  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x23 24 tc  1 24  0 r  .  .  8  8  8  0  0  0  0 16 16 16 16  0 0 None
...

Glynn Clements schrieb:
> Wolfgang wrote:
> 
>> If I did the installation correctly, this X server doesn't improve the 
>> situation. But the question is also if nviz is programmed to support OpenGL?
> 
> NVIZ uses OpenGL for rendering the 3D view.
> 
> You can determine whether your X server provides OpenGL acceleration
> from the output from "glxinfo". For an unaccelerated server, you
> should see:
> 
> 	OpenGL vendor string: Mesa project: www.mesa3d.org
> 	OpenGL renderer string: Mesa GLX Indirect
> 	OpenGL version string: 1.2 (1.5 Mesa 6.2.1)
> 
> For an accelerated server, you should get something which refers to
> your graphics hardware, e.g.:
> 
> 	OpenGL vendor string: NVIDIA Corporation
> 	OpenGL renderer string: GeForce 6800 GT/PCI/SSE2
> 	OpenGL version string: 1.2 (2.0.1)
>