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Tachyon supports a number of command line parameters which affect the
quality and algorithms used to render scene files. The parameters
select one of several quality levels, which implement various
compromises between rendering speed and quality. Along with the
overall shading quality controls, several specific options provide
control over individual rendering algorithms within Tachyon.
- -lowestshade: solid colors only
- -lowshade: minmalistic shading, using texture colors only
- -mediumshade: disables computation of shadows
- -fullshade: enables the highest quality rendering mode
- -aasamples sample_count: command line override for the number of
antialiasing supersamples computed for each pixel. A value of
zero disables antialiasing. If this option is not used, the number
of antialiasing samples is determined by the contents of the scen file.
- -shade_phong: use traditional phong shading for specular
highlights.
- -shade_blinn: use Blinn's equation for specular highlights.
- -shade_blinn_fast: use a fast approximation to Blinn-style
specular highlights.
- -shade_nullphong: entirely disables computation of
specular highlights by registering a no-op function pointer.
- -trans_orig: use original Tachyon transparency mode.
- -trans_vmd: a special transparency mode designed for
use with VMD. The resulting color is multiplied by opacity,
giving results similar to what one would see with screen-door
transparency in OpenGL.
Next: Command line image format
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