tachyon-ogl - parallel/multiprocessor ray tracer with OpenGL display

       Valid options and accepted formats are as follows (** denotes default behaviour).

   Modelfileformatssupported:
       filename.dat
              the model files originated with this package

       filaname.ac
              AC3D model files

       filename.nff
              the NFF scene format used by Eric Haines' SPD

   MessageOptions:
       +V     verbose messages on

       -V     verbose messages off **

   SpeedTuningOptions:-raydepth xxx
              maximum ray recursion depth

       -numthreads xxx
              (** default is auto-determined)

       -nobounding-boundthresh xxx
              (** default threshold is 16)

   ShadingOptions:-fullshade
              best quality rendering (and slowest) **

       -mediumshade
              good quality rendering, but no shadows

       -lowshade
              low quality rendering, preview (and fast)

       -lowestshade
              worst quality rendering, preview (and fastest)

   LightingOptions:-rescale_lights xxx rescale light intensity values by
              specified factor (performed before other lighting overrides take effect)

       -auto_skylight xxx
              force  use  of  ambient  occlusion lighting, auto-rescaling direct light sources to compensate for
              ambient occlusion factor (use value 0.7 as a good starting point)

       -add_skylight xxx
              force use of ambient occlusion lighting, manually-rescaling direct light sources to compensate for
              ambient occlusion factor

       -skylight_samples xxx number of sample rays to shoot

   SpecularHighlightShadingOptions:-shade_phong
              Phong specular highlights

       -shade_blinn
              Blinn's specular highlights **

       -shade_blinn_fast
              fast approximation to Blinn's highlights

       -shade_nullphong
              disable specular highlights

   TransparencyShadingOptions:-trans_max_surfaces xxx
              limit the number of transparent surfaces shown to the number specified

       -trans_orig
              original implementation **

       -trans_raster3d
              Raster3D angle-based opacity modulation

       -trans_vmd
              opacity post-multiply used by VMD

   TransparentSurfaceShadowingOptions:-shadow_filter_on
              transparent objects cast shadows **

       -shadow_filter_off
              transparent objects do not cast shadows

   FogShadingOptions:-fog_radial
              radial fog implementation **

       -fog_vmd
              planar OpenGL-like fog used by VMD

   SurfaceNormal/WindingOrderFixupMode:-normalfixup [off|flip|guess] (** off is default)

   AntialiasingOptions:-aasamples xxx
              maximum supersamples taken per pixel (** default is 0, or scene file determined)

   OutputOptions:-res Xres Yres
              override scene-defined output image size

       -o outfile.tga
              set output file name

       -clamp clamp pixel values to [0 to 1) **

       -normalize
              normalize pixel values to [0 to 1)

       -gamma val
              normalize apply gamma correction

       -format BMP
              24-bit Windows BMP (uncompressed)

       -format JPEG
              24-bit JPEG        (compressed, but lossy)

       -format PNG
              24-bit PNG         (compressed, lossless)

       -format PPM
              24-bit PPM         (uncompressed)

       -format PPM48
              48-bit PPM         (uncompressed)

       -format PSD48
              48-bit PSD         (uncompressed)

       -format RGB
              24-bit SGI RGB     (uncompressed)

       -format TARGA
              24-bit Targa       (uncompressed) **

   AnimationRelatedOptions:-camfile filename.cam
              animate using file of camera positions

       -nosave
              disable writing of output frames to disk (only used for doing real-time rendering)

   InteractiveSpaceball/SpaceNavigatorControl:-spaceball
              enable Spaceball/SpaceNavigator camera flight

       -spaceballport serialportdevicename (only for serial devices)

   GettingHelp:-help  display help message and exit

       -version
              display version string and exit

       -banner
              display banner and exit

Tachyon (Debian 0.99~b6+dsx-14)                   December 2024                                   TACHYON-OGL(1)

       tachyon-ogl - parallel/multiprocessor ray tracer with OpenGL display

tachyon-oglmodelfile [options]