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[comment {-*- tcl -*- doctools}]
[vset FORMATNAME sgi]
[vset FORMATFULLNAME {SGI Native Format}]
[include format-header.inc]
This handler provides new additional configuration options. See
section [sectref {SGI OPTIONS}] for more detailed explanations.
[include format-middle.inc]
In addition the value for the option is treated as list and may
contain any of the special options listed in section
[sectref {SGI OPTIONS}].
[list_end]
[section {SUPPORTED SGI TYPES}]
[example_begin]
24-bit pixels: True-color (RGB, each channel 8 bit).
32-bit pixels: True-color with alpha channel (RGBA, each channel 8 bit).
48-bit pixels: True-color (RGB, each channel 16 bit).
64-bit pixels: True-color with alpha channel (RGBA, each channel 16 bit).
List of currently supported features:
Type | Read | Write |
| -file | -data | -file | -data |
----------------------------------------
24-bit | Yes | Yes* | Yes | Yes* |
32-bit | Yes | Yes* | Yes | Yes* |
48-bit | Yes | Yes* | No | No |
64-bit | Yes | Yes* | No | No |
*: Implemented by reading/writing from/to a temporary file. This will
be slow for larger images.
All images types may be either uncompressed or run-length encoded.
[example_end]
[section {SGI OPTIONS}]
The handler provides the following options:
[list_begin definitions]
[lst_item "[option -verbose] [arg bool]"]
This option is supported for reading and writing.
[nl]
If set to [const true], additional information about the loaded/stored image
is printed to stdout. Default is [const false].
[lst_item "[option -compression] [arg type]"]
This option is supported for writing only.
[nl]
Set the compression mode to either [const none] or [const rle].
Default is [const rle].
[lst_item "[option -matte] [arg bool]"]
This option is supported for reading and writing.
[nl]
If set to [const false], a matte (alpha) channel is ignored
during reading or writing. Default is [const true].
[list_end]
[list_begin definitions]
[include format-footer.inc]
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