Newsgroup: it.comp.os.linux.iniziare
Titolo: come si attiva anti-alias + anisotropic su gefo4 440mx?

nell'appendice e dice cosa modificare. ma non ho capito che file devo
editare!
chi mi aiuta x favore?
ho debian sid con i driver 4496.
grazie!
ps ecco l'appendice e
(app-e) APPENDIX E: OPENGL ENVIRONMENT VARIABLE SETTINGS
__________________________________________________________________________
FULL SCENE ANTI-ALIASING
Anti-aliasing is a technique used to smooth the edges of objects in a
scene to reduce the jagged "stairstep" effect that sometimes appears.
Full scene anti-aliasing is supported on GeForce or newer hardware.
By setting the appropriate environment variable, you can enable full
scene anti-aliasing in any OpenGL application on these GPUs.
Several anti-aliasing methods are available and you can select between
them by setting the __GL_FSAA_MODE environment variable appropriately.
Note that increasing the number of samples taken during FSAA rendering
may decrease performance.
The following tables describe the possible values for __GL_FSAA_MODE
and their effect on various NVIDIA GPUs.
__GL_FSAA_MODE  GeForce, GeForce2, Quadro, and Quadro2 Pro
-----------------------------------------------------------------------
  0             FSAA disabled
  1             FSAA disabled
  2             FSAA disabled
  3             1.5 x 1.5 Supersampling
  4             2 x 2 Supersampling
  5             FSAA disabled
__GL_FSAA_MODE  GeForce4 MX, GeForce4 4xx Go, Quadro4 380,550,580 XGL,
                and Quadro4 NVS
-----------------------------------------------------------------------
  0             FSAA disabled
  1             2x Bilinear Multisampling
  2             2x Quincunx Multisampling
  3             FSAA disabled
  4             2 x 2 Supersampling
  5             FSAA disabled
__GL_FSAA_MODE  GeForce3, Quadro DCC, GeForce4 Ti, GeForce4 4200 Go,
                and Quadro4 700,750,780,900,980 XGL
-----------------------------------------------------------------------
  0             FSAA disabled
  1             2x Bilinear Multisampling
  2             2x Quincunx Multisampling
  3             FSAA disabled
  4             4x Bilinear Multisampling
  5             4x Gaussian Multisampling
ANISOTROPIC TEXTURE FILTERING
Automatic anisotropic texture filtering can be enabled by setting 
the environment variable __GL_DEFAULT_LOG_ANISO,  The useful values 
are:
__GL_DEFAULT_LOG_ANISO  GeForce/GeForce2/GeForce4 MX Description
-----------------------------------------------------------------------
  0     No anisotropic filtering
  1     Enable automatic anisotropic filtering
__GL_DEFAULT_LOG_ANISO  GeForce3/GeForce4 Ti Description
-----------------------------------------------------------------------
  0     No anisotropic filtering
  1     Low anisotropic filtering
  2     Medium anisotropic filtering
  3     Maximum anisotropic filtering
VBLANK SYNCING
Setting the environment variable __GL_SYNC_TO_VBLANK to a non-zero value
will force glXSwapBuffers to sync to your monitor's vertical refresh rate
(perform a swap only during the vertical blanking period) on GeForce or
newer hardware (ie: everything but TNT/TNT2 products).

 may decrease performance.
  Come dice qui, devi impostare la variabile __GL_FSAA_MODE. In pratica
metti in un file dell'utente o in uno globale (tipicamente /etc/profile
o ~/.profile) il comando
export __GL_FSAA_MODE=5
Saluti,
  Giovanni.
-- 
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