tachyon man page

Tachyon — 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) **

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) **

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).

May 2008 Tachyon Parallel/Multiprocessor Ray Tracer Version 0.98 User Commands