tachyon - Man Page
parallel ray-tracer
Description
Tachyon Parallel/Multiprocessor Ray Tracer Version 0.98 Copyright 1994-2007, John E. Stone <johns@megapixel.com> ----------------------------------------------------------- Unrecognized parameter/option flag: --help Usage:
tachyon/usr/bin/tachyon modelfile [options]
Model file formats supported
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.
Valid options: (** denotes default behaviour) ---------------------------------------------- Message Options:
+V verbose messages on
-V verbose messages off **
Speed Tuning Options
- -numthreads xxx
(** default is auto-determined)
-nobounding
- -boundthresh xxx
(** default threshold is 16)
Shading Options
- -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)
Lighting Options
- -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.
Specular Highlight Shading Options
- -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
Transparency Shading Options
- -trans_orig
Original implementation**
- -trans_vmd
Opacity post-multiply used by VMD
Surface Normal/Winding Order Fixup Mode
- -normalfixup [off | flip | guess]
(**off is default)
Antialiasing Options
- -aasamples xxx
(maximum supersamples taken per pixel) (** default is 0, or scene file determined)
Output Options
- -res Xres Yres
override scene-defined output image size
- -o outfile.tga
set output file name
- -clamp
clamp pixel values to [0 to 1) (** default)
- -normalize
normalize pixel values to [0 to 1)
- -gamma val
normalize apply gamma correction
- -format BMP
24-bit Windows BMP (uncompressed)
- -format JPEG
XXX Not compiled into this binary XXX
- -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) **
Animation Related Options
- -camfile filename.cam
Animate using file of camera positions.
- -nosave
Disable writing of output frames to disk (only used for doing real-time rendering)
Copyright 1994-2007, John E. Stone <johns@megapixel.com> ----------------------------------------------------------- Unrecognized parameter/option flag: --version Usage:
tachyon/usr/bin/tachyon modelfile [options]
Model file formats supported
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.
Valid options: (** denotes default behaviour) ---------------------------------------------- Message Options:
+V verbose messages on
-V verbose messages off **
Speed Tuning Options
- -numthreads xxx
(** default is auto-determined)
-nobounding
- -boundthresh xxx
(** default threshold is 16)
Shading Options
- -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)
Lighting Options
- -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.
Specular Highlight Shading Options
- -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
Transparency Shading Options
- -trans_orig
Original implementation**
- -trans_vmd
Opacity post-multiply used by VMD
Surface Normal/Winding Order Fixup Mode
- -normalfixup [off | flip | guess]
(**off is default)
Antialiasing Options
- -aasamples xxx
(maximum supersamples taken per pixel) (** default is 0, or scene file determined)
Output Options
- -res Xres Yres
override scene-defined output image size
- -o outfile.tga
set output file name
- -clamp
clamp pixel values to [0 to 1) (** default)
- -normalize
normalize pixel values to [0 to 1)
- -gamma val
normalize apply gamma correction
- -format BMP
24-bit Windows BMP (uncompressed)
- -format JPEG
XXX Not compiled into this binary XXX
- -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) **
Animation Related Options
- -camfile filename.cam
Animate using file of camera positions.
- -nosave
Disable writing of output frames to disk (only used for doing real-time rendering)
See Also
The full documentation for Tachyon is maintained as a Texinfo manual. If the info and Tachyon programs are properly installed at your site, the command
info Tachyon
should give you access to the complete manual.
Referenced By
The man page tachyon-ogl(1) is an alias of tachyon(1).