Sorry, this has taken bloody ages. Real life hit.
As is, when it comes to the guide, I've decided that the full process is going to need a video guide; while the photogrammetry itself isn't too complicated, cleaning up and converting the scans for Tabletop Simulator requires reasonable knowledge of Blender and will benefit from detail difficult to provide in a written guide.
However, that's going to take time, as I hate horrible rambling video guides that don't get to the point, so I'll need to write up a script and do some editing. Rather than farting around waiting for that, I'm going to take a direct approach.
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I want to run a test game sometime in the next few weeks, most likely on a Saturday, although Sunday isn't impossible if it's earlier in the day (I have Dark Heresy sessions over Discord from 7).
As is, there's a fair number of WH40k models out there for Tabletop Simulator, and for a test game we can reasonably get away with a few stand-ins. The main point is to sound out any technical issues, work out what needs fixing for a regular game session or full event.
If anyone particularly wants to do the photo-scanning, I can send them the written guide I have on the first stages of the process, and I am then volunteering to do the final clean-up for a limited number of models if the results are sent to me. (Just please, not the night before).
So, I'm looking for volunteers who are willing to get involved in the near future. We'll organise an exact date and time once we know who's available.