I decided to create a new thread here about this, so we don’t clutter the notification thread too much, or place too much off-topic information there.
So what is the PDK?
Well, I’m not the best person to answer that, but I can start providing part of the answer that I know…
PDK is the “Plug-in Development Kit”. It allows (will allow) someone wth some programming knowledge to actually make a plug-in for WM. A plug-in could be a device, for instance.
So what is the benefit of a device made as a plug-in over a macro?
A macro will use devices and functionality available in WM. If new stuff needs to be made, the only way to make it is with a plug-in. Imagine you want to do some sort of wind erosion, where you specify a direction for the erosion to go. There have been some attempts at doing that in macros, but they were not very sucessful, or limited…
with a plug-in, you have access to more information and operations that allow you to manually decide what to do to individual height pixels.
As for other application to plug-in making I can’t say much for sure, as nothing has really been defined anywhere yet. When the PDK is ready, everything we need to know should be available.