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shilo 03-02-2005 05:16 PM
OpenGL terminology question
 
I'd like to apologize in advance for the length of this post. I'm sure I have included way too much command output. I'm not very sharp with the whole video thing.

To give some details, I am currenlty running Slackware 10.1 (full install) with Dropline Gnome. Kernel version is 2.6.10ck (haven't had the free time to upgrade yet :)) I have an NVidia GeForce 5700 LE running with the Nvidia binary driver.

My question is probably very simple. I am looking to build a MythTV box in the future and while looking up the requirements for the modules, I see that OpenGL is a requirement. From the README supplied with mythgallery source:

Quote:
(make sure you have OpenGL support for your graphics card available
and enabled if you choose this option. You can check this under X11
using xdpyinfo or glxinfo. Also ensure that QT has been built with
OpenGL support)
Last things first, I check out qt.SlackBuild and see the
Quote:
-enable-opengl
switch for ./configure. Gotta assume that means that QT has been built with
OpenGL support.

Checking xdpyinfo:
Quote:
root@shilo2:~# xdpyinfo
name of display: :0.0
version number: 11.0
vendor string: The X.Org Foundation
vendor release number: 60802000
X.Org version: 6.8.2
maximum request size: 16777212 bytes
motion buffer size: 256
bitmap unit, bit order, padding: 32, LSBFirst, 32
image byte order: LSBFirst
number of supported pixmap formats: 7
supported pixmap formats:
depth 1, bits_per_pixel 1, scanline_pad 32
depth 4, bits_per_pixel 8, scanline_pad 32
depth 8, bits_per_pixel 8, scanline_pad 32
depth 15, bits_per_pixel 16, scanline_pad 32
depth 16, bits_per_pixel 16, scanline_pad 32
depth 24, bits_per_pixel 32, scanline_pad 32
depth 32, bits_per_pixel 32, scanline_pad 32
keycode range: minimum 8, maximum 255
focus: window 0x22003c2, revert to Parent
number of extensions: 38
BIG-REQUESTS
Composite
DAMAGE
DEC-XTRAP
DOUBLE-BUFFER
DPMS
Extended-Visual-Information
GLX
LBX
MIT-SCREEN-SAVER
MIT-SHM
MIT-SUNDRY-NONSTANDARD
NV-CONTROL
NV-GLX
NV-GLX
NV-GLX
NV-GLX
NV-GLX
RANDR
RECORD
RENDER
SECURITY
SHAPE
SYNC
TOG-CUP
X-Resource
XC-APPGROUP
XC-MISC
XFIXES
XFree86-Bigfont
XFree86-DGA
XFree86-Misc
XFree86-VidModeExtension
XInputExtension
XKEYBOARD
XTEST
XVideo
XVideo-MotionCompensation
default screen number: 0
number of screens: 1

screen #0:
print screen: no
dimensions: 1280x1024 pixels (361x271 millimeters)
resolution: 90x96 dots per inch
depths (7): 24, 1, 4, 8, 15, 16, 32
root window id: 0xb7
depth of root window: 24 planes
number of colormaps: minimum 1, maximum 1
default colormap: 0x20
default number of colormap cells: 256
preallocated pixels: black 0, white 16777215
options: backing-store NO, save-unders NO
largest cursor: 64x64
current input event mask: 0xfa2033
KeyPressMask KeyReleaseMask EnterWindowMask
LeaveWindowMask ButtonMotionMask StructureNotifyMask
SubstructureNotifyMask SubstructureRedirectMask FocusChangeMask
PropertyChangeMask ColormapChangeMask
number of visuals: 41
default visual id: 0x21
visual:
visual id: 0x21
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x22
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x23
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x24
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x25
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x26
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x27
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x28
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x29
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2a
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2b
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2c
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2d
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2e
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x2f
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x30
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x31
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x32
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x33
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x34
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x35
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x36
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x37
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x38
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x39
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3a
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3b
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3c
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3d
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3e
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x3f
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x40
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x41
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x42
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x43
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x44
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x45
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x46
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x47
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x48
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0xb5
class: TrueColor
depth: 32 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
Checking glxinfo:
Quote:
root@shilo2:~# glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: No
server glx vendor string: NVIDIA Corporation
server glx version string: 1.3
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
GLX_ARB_multisample, GLX_NV_float_buffer
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_SGI_make_current_read,
GLX_SGI_swap_control, GLX_SGI_video_sync, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce FX 5700LE/AGP/SSE/3DNOW!
OpenGL version string: 1.2 (1.5.2 NVIDIA 66.29)
OpenGL extensions:
GL_ARB_imaging, GL_ARB_multitexture, GL_ARB_point_parameters,
GL_ARB_transpose_matrix, GL_ARB_window_pos, GL_EXT_blend_color,
GL_EXT_blend_func_separate, GL_EXT_blend_minmax,
GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays,
GL_EXT_paletted_texture, GL_EXT_point_parameters, GL_EXT_secondary_color,
GL_EXT_texture3D, GL_EXT_texture_object, GL_EXT_vertex_array,
GL_INGR_blend_func_separate, 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
----------------------------------------------------------------------
0x21 24 tc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 0 0 None
0x22 24 dc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 0 0 None
0x23 24 tc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 0 0 None
0x24 24 tc 0 32 0 r . . 8 8 8 0 4 24 8 16 16 16 16 0 0 None
0x25 24 tc 0 32 0 r . . 8 8 8 8 4 24 8 16 16 16 16 0 0 None
0x26 24 tc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 0 0 None
0x27 24 tc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 0 0 None
0x28 24 tc 0 32 0 r . . 8 8 8 0 4 16 0 16 16 16 16 0 0 None
0x29 24 tc 0 32 0 r . . 8 8 8 8 4 16 0 16 16 16 16 0 0 None
0x2a 24 tc 0 32 0 r y . 8 8 8 0 4 0 0 16 16 16 16 0 0 None
0x2b 24 tc 0 32 0 r y . 8 8 8 8 4 0 0 16 16 16 16 0 0 None
0x2c 24 tc 0 32 0 r . . 8 8 8 0 4 0 0 16 16 16 16 0 0 None
0x2d 24 tc 0 32 0 r . . 8 8 8 8 4 0 0 16 16 16 16 0 0 None
0x2e 24 tc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 2 1 Ncon
0x2f 24 tc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 2 1 Ncon
0x30 24 tc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 4 1 Ncon
0x31 24 tc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 4 1 Ncon
0x32 24 tc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 2 1 Ncon
0x33 24 tc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 2 1 Ncon
0x34 24 tc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 4 1 Ncon
0x35 24 tc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 4 1 Ncon
0x36 24 dc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 0 0 None
0x37 24 dc 0 32 0 r . . 8 8 8 0 4 24 8 16 16 16 16 0 0 None
0x38 24 dc 0 32 0 r . . 8 8 8 8 4 24 8 16 16 16 16 0 0 None
0x39 24 dc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 0 0 None
0x3a 24 dc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 0 0 None
0x3b 24 dc 0 32 0 r . . 8 8 8 0 4 16 0 16 16 16 16 0 0 None
0x3c 24 dc 0 32 0 r . . 8 8 8 8 4 16 0 16 16 16 16 0 0 None
0x3d 24 dc 0 32 0 r y . 8 8 8 0 4 0 0 16 16 16 16 0 0 None
0x3e 24 dc 0 32 0 r y . 8 8 8 8 4 0 0 16 16 16 16 0 0 None
0x3f 24 dc 0 32 0 r . . 8 8 8 0 4 0 0 16 16 16 16 0 0 None
0x40 24 dc 0 32 0 r . . 8 8 8 8 4 0 0 16 16 16 16 0 0 None
0x41 24 dc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 2 1 Ncon
0x42 24 dc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 2 1 Ncon
0x43 24 dc 0 32 0 r y . 8 8 8 0 4 24 8 16 16 16 16 4 1 Ncon
0x44 24 dc 0 32 0 r y . 8 8 8 8 4 24 8 16 16 16 16 4 1 Ncon
0x45 24 dc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 2 1 Ncon
0x46 24 dc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 2 1 Ncon
0x47 24 dc 0 32 0 r y . 8 8 8 0 4 16 0 16 16 16 16 4 1 Ncon
0x48 24 dc 0 32 0 r y . 8 8 8 8 4 16 0 16 16 16 16 4 1 Ncon
0xb5 32 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
Going on, from the README supplied with mythmusic source:
Quote:
In addition to MythTV's requirements, you'll need these software packages:
...
Optionally:
...
OpenGL - Just about everyone should have this already (?).
http://www.opengl.org
So my question(s): Do I have OpenGL? If so, which package provided it?

Thanks in advance, and sorry again about the length of the post.

uman 03-02-2005 05:37 PM
Did you install 3d-accelerated graphics drivers? If so, you can use OpenGL.

egag 03-02-2005 05:41 PM
guess you have it :

egag@Slack21:~$ grep libglx /var/log/packages/*
/var/log/packages/x11-6.8.2-i486-1:usr/X11R6/lib/modules/extensions/libglx.a

so...libglx is in the base X package.

it's loaded by the -- Load "glx" -- statement in xorg.conf.

but i also saw you have a nvidia-graph card.
do you have the driver installed ?

if so:
it's not working correct ( "direct rendering=no" in glxinfo )
and i think nvidia drivers have a replacement for libglx, wich is installed with the driver.

hope this is of some help....

egag

shilo 03-02-2005 07:01 PM
Quote:
Did you install 3d-accelerated graphics drivers? If so, you can use OpenGL.
I installed the Nvidia binary driver. So then you are saying that if the Nvidia binary driver is installed, that all OpenGL dependencies are good to go?

egag:

Code:
shilo@shilo2:~$ grep libglx /var/log/packages/*
/var/log/packages/x11-6.8.2-i686-1dl:usr/X11R6/lib/modules/extensions/libglx.a
So libglx is OpenGL?

All of a sudden, I feel like a complete beginner all over again.

I do have an Nvidia card. I have installed the binary driver for it.

Some notes:

There aren't any (EE) errors in /var/log/Xorg.0.log

My video seems to be accellerated:
Code:
shilo@shilo2:~$ glxgears
14006 frames in 5.0 seconds = 2801.200 FPS
14443 frames in 5.0 seconds = 2888.600 FPS
4620 frames in 5.0 seconds = 924.000 FPS
1260 frames in 5.0 seconds = 252.000 FPS
1400 frames in 5.0 seconds = 280.000 FPS
This is with maximizing the window halfway through. This is not working?

Some relevant snippings from /etc/X11/xorg.conf:
Code:
Section "Module"
    Load        "dbe"
    Load        "v4l"
    Load        "extmod"
    Load      "glx"
#    Load      "dri"
    Load        "record"
    Load        "xtrap"
EndSection

Section "Extensions"
  Option  "Composite"    "Enable"
EndSection

Section "Device"

        Identifier  "Card0"
        Driver      "nvidia"
        VendorName  "nVidia Corporation"
        BoardName  "Unknown Board"
        BusID      "PCI:1:0:0"
       
        Option      "RenderAccel"        "True"
        Option            "HWCursor"          "True"
        Option      "CursorShadow"      "True"
        Option      "UseEdidFreqs"      "True"
        Option      "NoLogo"            "True"
        Option      "AllowGLXWithComposite" "True"
#        Option      "DRI"              "True"
EndSection
And the module is loading fine:
Code:
shilo@shilo2:~$ lsmod|grep -i nvidia
nvidia              3463484  12
So the line from glxinfo "direct rendering: No" means that something isn't working? Hate to ask, but any ideas what it could be?

You mention that the NVidia driver has a replacement for libglx. Does this look right?

Code:
root@shilo2:/usr/X11R6/lib/modules/extensions# ls -l
total 3699
-r--r--r--  1 root root 2423010 2005-02-10 20:10 libGLcore.a
-r--r--r--  1 root root  16468 2005-02-10 20:10 libdbe.a
-r--r--r--  1 root root  32402 2005-02-10 20:10 libdri.a
-r--r--r--  1 root root  166504 2005-02-10 20:10 libextmod.a
-r--r--r--  1 root root  488048 2005-02-10 20:10 libglx.a
lrwxrwxrwx  1 root root      18 2005-02-14 11:28 libglx.so -> libglx.so.1.0.6629*
-rwxr-xr-x  1 root root  577444 2005-02-14 11:28 libglx.so.1.0.6629*
-r--r--r--  1 root root  25824 2005-02-10 20:10 librecord.a
-r--r--r--  1 root root  39346 2005-02-10 20:10 libxtrap.a
Looking at the dates (and the .6629) makes me think that hese are the NVidia libglx replacements. I do notice that they end in .so, while evrything else ends in .a (including what I would presume is the original libglx). Is this the way it is supposed to be?

Thanks again for all the help. Sorry to only have more questions in response to your answers.

cathectic 03-02-2005 07:17 PM
Quote:
So the line from glxinfo "direct rendering: No" means that something isn't working? Hate to ask, but any ideas what it could be?
You'll have to Google for the specifics of how and why, but if memory serves, nVidia bypass the Direct Rendering Interface (DRI) for rendering, whereas ATi's drivers don't. That's why you don't need or have DRI enabled in your xorg.conf for your binary nVidia driver.

shilo 03-02-2005 07:41 PM
cathectic:

I think that is right. Why else would I get the high numbers from glxgears?

I believe I have all my answers. I just needed to look at http://www.opengl.org/applications/installing.html#9
Quote:
Q. What do I need to install?

A.If OpenGL is not working for you correctly and your PC or laptop does have an OpenGL-savvy graphics card, all you should need to do is install the latest OpenGL driver from your graphics card manufacturer. Simply go to your graphics card manufacturer's website and download and install their latest OpenGL driver. If you cannot find the driver, send an email to the technical support department of the card manufacturer. If you are still having trouble, check the OpenGL Hardware, Software, & Gaming Message Board.
So then, it seems that the OpenGL dpendency is solved simply by having the proper driver for your video card. Here I was looking for opengl*tgz.

Thanks to everyone. Maybe next time I'll think to read the web site listed in the README BEFORE posting longwinded questions.

Off to compile some more,

egag 03-02-2005 08:00 PM
well...you are ok on the graphics.
hw.-acceleration works ok. and you use the glx-lib. from nvidia.

glxinfo comes in the same package as the libglx.a so i think, using the nvidia lib.'s
it gives not the right info.

and " opengl=libglx " ???

that's a good Q.
( take a look at " $slocate glx " , if you have a db. for slocate )
there'not much there.....
i think it's "just" a lib. that's used by graphics-programs to draw primitives ( like lines and planes ) on the screen.

and you can use it without hw-rendering.
in that case graphics all will be calculated by the main processor instead of using the graphic processor.
( so, specially using 3d graphics, it will be very slow... )

but the more i think of it, the more i know i have to do some reading
on that.

egag


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