Large Scale Central

AI in the Hobby

Hi Cliff,

So as someone who has been doing 3d and general development for a living for nearing 30 years now, and have been directly affected by AI (some clients are now using AI for things they would have come to me for, and others are flirting with the idea ), I am not really a fan of AI.

In many cases, the AI gives less than stellar results, and there have been clients who come to me with things AI botched in some way to fix it.

I must say though, that character mesh extrapolated from the 2d sketch is impressive.

As far as the rigging, while you can certainly add an armature to that mesh, it is not an ideal starting point, we generally start with T-Pose when building a character mesh, for several reasons, just one of which being the weight mapping, which in T-Pose, can be mirrored, so basically, half the work, and uniform across the lateral axis.

Also, in TPose, the limbs are well separated from each other, and the torso, in a uniform manner, so auto-weighting will do a reasonable first pass without too many artifacts to clean, and those that are there can again be mirrored, so half the cleanup.

With this pose, you may encounter issues to get a good rig weighted, such as at the thighs, which are rotated differently, the arms, etc. Sure, it can be done, and maybe easily enough if you aren’t a perfectionist (as I am), but to do it well will take a lot of work I expect.

Either way, the resulting print of this character looks very nice, I look forward to seeing it with paint (and glad to see there still remains room for some human craftsmanship in this project).

Also, this is an interesting thread, on a topic which affects me as a media developer, and also as a music composer. I have stayed out of the discussion though, until this point, because I am rather biased on this topic, being someone directly affected negatively by it, on multiple fronts.

Regards,
Dave

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Thanks for all your insights, Dave. AI’s a very hot topic in our household, since our youngest daughter’s 4-year art degree (finished a couple years ago) isn’t getting her a job, despite literally hundreds of applications, we think mainly because of AI. The temp job she did get was replaced with AI a year ago… So I’m in agreement with you, and there’s lots to rant about IMO.

You’re spot-on about the T-pose. Tripo is supposed to automatically morph the figure into that pose, but I’ve not been successful with that yet. It did put rigging in, which translated to Blender for posing, but I ran out of time (and patience) and just printed it as-is.

Been making miners and mules today…

The two on the left and the last on the right were created from historical sketches. The middle two were all done almost entirely with AI.

Here’s an example of the latter. I went to Gemini and fed it a historical reference image.

I described what I wanted, and typed in: “Please draw a historical miner, without a shirt, using a shovel to move rock.” Gemini came up with this.

It kinda overdid the muscles, which made me concerned that I’m not keeping up with promised exercise. So to resolve my guilt, next time I’ll ask for a bigass beer belly.

I did ask it to remove the background, and it did so. It also did a great job on that with the historical images as well. This will save me tons of time erasing image backgrounds manually in Photoshop or Paint.

I saved the image and dragged it into Tripo, where the first step was to generate multiple flat image views.

Seemed ok, so I had it generate the model, which was saved to STL. The tennis shoes are goofy (I noticed those belatedly), but I’ll solve that with a file.

Final step was in the Bambu slicer, where I scaled and sometimes mirrored the part.

Bambu added supports…

… and I sent the file to the printer. That’s pretty much it.

I finally figured out how to tweak the poses using Blender, so if someone cares about that, let me know and I’ll explain (cuz it wasn’t straightforward). For these, the poses were fine already, and I didn’t feel like going through those further steps.

A seriously cool thing about this process is that literally anyone can do it. I’ve been using 3D CAD on the job for 30 years, but not a bit of that came into this. The only purchased software was Tripo ($140/year), but the rest (Gemini & Blender) are free, and Bambu Studio comes with the Bambu printer (which is typical for all 3d printers).

Another cool thing is simply getting what I needed at a great price. I’ve paid around $15 for ok F-scale models, which were nowhere near the look & poses I got here. But even if I could get these commercially, that’s at least $75. I did find mule models from Schleich for $9 + shipping, but only one (kinda too small) size, no harness, and lots of hours ahead modifying them. I’m printing a second mule model, so let’s call it $20 in value for the two I’m printing.

So, assuming I could buy off the shelf what I wanted, this first set of figures would have cost me $95. To make what I needed, I’m spending $140 (per year). With 11 more modules / scenes to go, and getting figures that are at the right scale, costume and pose, I’ll be saving a crap-ton of $$ and headache.

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I’ll have to remember my derby the next time I’m down in the coal mine.

All I can say is WOW.

I’m not looking for figures, but I really would like to extend some Shorpy images to finish building parts that are out of the frame on my prints. I’ll need to experiment with Gemini.

Or silver mine. :grinning_face_with_smiling_eyes:

I lifted that figure from an 1876 Comstock drawing. Seems like that style was in fashion!

Well, my hopes of using Gemini to extend some old industrial photos I saved from Shorpy, complete with watermark, are dashed. Gemini’s terms of service are pretty clear that you need to have ownership or usage rights for any content uploaded.

Someday I may spring to purchase something, but way to many things going on right now to even consider it.

Maybe try ChatGPT or Co-Pilot? Prob have the same issues though…

One of the pellet hoppers I plan to make for a local business. Colt Plastics started as the plastics division of Colt firearms. I couldn’t find a decent graphic online to make decals so today I swung by and took a pic of the front of the building. Then used Gemini to make a logo.


I asked Gemini to

  1. Remove background
  2. Create clipart from the image
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Very cool.

Here’s what Tripo did with your Gemini image (don’t ask me why it added the pie plate):