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.