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ScreamerNet lwsn may be used in standalone mode (-3) to render
scenes independent of LightWave itself. This method may be used
to render a scene in the background while you work on another scene
in LightWave, which is especially useful on multi core/processor
machines. It may also be used to render a scene on another Mac that
doesn’t have LightWave installed, as long as you can access
the LightWave Mac with your configs, programs and content over your
network via file sharing, or copy the files all to the other Mac
The following step-by-step example shows how to render DLI_SuperBalls,
the sample scene that is included with the FREE
Lite version of DLI_SNUB-Launcher, using ScreamerNet
lwsn in standalone mode (-3) on the Macintosh. After downloading
and unzipping DLI_SNUB-Launcher, copy or move the DLI_SuperBalls
content folder to the current user’s Documents folder.
There are a few settings that are stored in the LightWave Layout
config file that are used by ScreamerNet lwsn for standalone mode
-3 rendering. Two of them are the Segment Memory Limit
and the Multithreading settings. The defaults for
these should be fine, Segment Memory Limit: 1024 and Multithreading:
Automatic. The third setting that we’ll be using is the Content
Directory. You may set these settings as outlined below.
In this example we will use the default Mac OS X config file location
For more information see Managing LightWave’s
All Important Config Files.
- Set the Content Directory with Edit->Set Content
Navigate to and select:
/Users/username/Documents/DLI_SuperBalls/This assumes you have placed the DLI_SuperBalls folder
in your user’s
Documents folder .
See Content Directory
for more information.
- Open Render->Options->Render Globals
and set the Segment Memory Limit to at least
See Default Segment
Memory for more information.
- Click yes when asked if this should be the
new default setting, or it won’t be saved.
- Click the Render tab and set Multithreading
to the number of cores/threads that you would like to use up to
the maximum number of threads on your Mac or simply set it to
Automatic to have it use the maximum available threads.
- Quit LightWave to save the config file to disk.
The output render destination is stored as an absolute path in
the scene file, even if the destination is inside the content directory,
therefore you need to set the output render destination any time
you move a scene to a new Mac.
For more information see Successful Scene
File Preparation for ScreamerNet.
- Use File->Load->Load Scene... to load:
from the current user’s Documents folder.
- Click Yes if asked if you’d like to change
the Content Directory when loading the scene.
- Open Render->Options->Render Globals.
- Click the Output tab.
- Click the RGB Files button.
- Verify that
DLI_LW11-SuperBalls-Anim is set in
the Save As: field.
- Navigate to the
- Click the Save button to dismiss the dialog
and accept the changes.
- Set the RGB Type pop-up menu to
- The RGB readout should now read
- Save the scene.
- Quit LightWave Layout.
than typing ScreamerNet lwsn command lines manually by hand, you
may use the Aqua GUI utility, DreamLight
SNUB-Launcher, to interactively build the command lines
and launch ScreamerNet lwsn with a Mac friendly drag-and-drop-dead-easy™
Interactive ScreamerNet UB Launcher Update
DLI_SNUB-Launcher™ is an XCode Aqua GUI front end to interactively configure and launch LightWave
9, 10 & 11+ ScreamerNet UB lwsn instances for standalone, batch and network
your copy today!
Created by the author of Creating
a 3D Animated CGI Short
& Mastering LightWave
ScreamerNet (lwsn) for Mac OS X
Michael Scaramozzino - LightWave
3D Artist Profile.
- If you haven’t already, download the FREE
Lite version of DLI_SNUB-Launcher to your host Mac
and unzip it, but don’t launch it yet. It defaults to look
bin/lwsn in the same folder it’s located
in, the first time DLI_SNUB-Launcher is run. If you do run it
before placing it in the proper folder, then you can launch it
and just click on the lwsn Path button to choose
the correct path to the
- Drag DLI_SNUB-Launcher to the
- Drag the scene file
onto the DLI_SNUB-Launcher application icon that is in the
- If asked to change Content Directory to scene’s Content
Directory click the Yes button.
- Verify that the Scene File and Output
Path are set correctly in the Scene Settings panel.
- Set the Render Frame Range to: First Frame 1, Last Frame 10,
Frame Step 1 and click OK.
- DLI_SNUB-Launcher will then launch ScreamerNet lwsn in Terminal
and render frames 1-10 of
and place them in
Another way to configure and launch ScreamerNet lwsn is to manually
type the command line to launch it in Terminal. For a much easier
and far less error prone method to configure and launch ScreamerNet
lwsn, just use the previous interactive method - Drag-and-drop
Rendering using the FREE Lite Version
of DreamLight SNUB-Launcher as a Droplet.
For an in-depth discussion and explanation of each of LightWave’s
available command line parameters, please review Utilizing
LightWave’s Mac Command Line Parameters.
- Type or paste the following into the terminal command line,
all on one iine, substituting your actual username. Then press
the return key.
-3 -c"/Users/username/Library/Application Support/NewTek/LightWave/11.0/"
1 10 1
- ScreamerNet lwsn will then render frames 1-10 of
and place them in
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