Autodesk LIGHTSCAPE, Руководство пользователя

Страница: 264 / 362

Batch Processing Utilities B
256
Lightscape
processing uses the meshing parameters specified in it. In the case of the Solution file, the processing continues
from the last iteration completed.
Unless you provide an alternate filename using the -o option, the original Solution file is overwritten with the
computed solution. If the Preparation file was provided, a new Solution file is created with the same filename as
the Preparation file, but with an .ls file extension.
By default, the process runs until it is stopped.
To stop the process, type Ctrl+C in the window where the process is running. The process completes the iteration
it is working on and outputs a Solution file before stopping.
If you type Ctrl+C again, the process terminates immediately without saving any files.
Another way to stop the process is to bring up a Windows NT Task List and end the lsrad process. However,
again, no files are saved.
It is possible to stop the process by specifying in advance the number of iterations, processing time, or percentage
of energy absorbed, using the -term, -termp, or -termt option.
To use the lsrad utility:
1.
Choose Start | Programs | MS-DOS Prompt.
A DOS shell appears.
2.
At the command line, type the following then press Enter:
CD “\Program_Files\Lightscape\bin”
Note: If the path to the Lightscape application files differs from above, enter it instead.
3. Using the following syntax, type a command at the command line, then press Enter:
lsrad [options] filename
The radiosity solution is processed.
LSRAD Options
The following table describes the options available for this utility:
Option: Extension: Description:
-ac Allow attribute and light source changes. Default: use Solution file informa-
tion. For more information, see Chapter 11, “Radiosity Processing.”
-nac Do not allow attribute/light changes for more efficiency. Default: use Solu-
tion file information.