Download and extract the appropriate ZIP file for your platform.

The <plugin>.p file can be copied to any directory where you keep your plugins. We recommend using a manually created plugin directory to separate third party plugins from plugins shipped with LightWave 3D. This will simplify upgrades of LightWave 3D.

Now use the Edit Plug-ins panel (alt-F11) of the Add Plugins menu item to add the plugin file <plugin>.p to LightWave 3D.

You can also copy it to

%userprofile%.NewTek\LightWave\2018.0\plugins

to allow LightWave to detect the plugin automatically.

You can copy the <plugin>.plugin file into one of two locations for LightWave to use it automatically.

You can either copy it to:

~/Library/Application Support/Newtek/LightWave2018.0/Plugins

for the current user or

/Library/Application Support/Newtek/LightWave2018.0/Plugins

for all users.

In both cases LightWave 3D will automatically pick up the plugins once you launch it.

You are of course free to copy the plugin file to another location and use the Edit Plug-ins panel (alt-F11) of the Add Plugins menu item to add the plugin file <plugin>.plugin to LightWave 3D.