Grid Girls

Up to this point, I’ve been more-or-less taking the advice of model creators and uploaded pictures on CivitAI when it comes to choosing the sampler and scheduler settings for Stable Diffusion models, but this produced problems when I tried to compare the same prompt and parameters across a large group of models, to see how they handled details like faces, finger counts, lighting, depth of field, and of course, “paying attention to the prompt”.

I was going to do a detailed comparison of the 13x31 grid of pictures I got from testing identical settings with all of the available schedulers and samplers, but as I worked my way through the results, I learned an important lesson: don’t choose a reference pic where the gal’s legs are crossed and her fingers are interlaced. This is pretty much the worst-case scenario for evaluating SD images of human beings…

TL/DR: over a third of the combinations produced garbage, and about half of the rest looked very similar in the foreground with some minor out-of-focus differences in the background, but there were quite a few small differences in her clothing’s shape, color, coverage, and material. Face and hair were pretty similar, with only a few looking like a completely different girl, and maybe a quarter having the hair parted on the other side. A fair number changed the pose in some way, although there were maybe six different poses total out of 403 images.

Next time, I’ll set the test up more carefully, so I can actually draw some conclusions beyond, “yeah, just don’t bother with most of the samplers and schedulers”. 😁

“Customers say”

Amazon’s “AI” comment-summarizer says this:

Customers find the story engaging and action-packed. They describe the book as a fun, intense read that is worth reading. The series is considered good to great by customers. Readers appreciate the complex characters and the author’s writing style. The pacing is described as fast and consistent. Overall, customers praise the author’s writing quality and consider it an excellent military adventure.

Human summarizer says, “OH JOHN RINGO NO!”. 😁

Artificial Incantations

How to get Flux.1-Dev to stab an orc: “…bleeding from a large chest wound. A sword grows vertically from the wound.” The official release seems a bit vague on what an “orc” looks like, but with some extra prompting will do the right thing:

side view, at night. photograph of a male ((orc)) warrior with green skin, pointed ears, and tusks, wearing armor, ((lying on back)) on a battlefield with his eyes closed, bleeding from a large chest wound. A sword grows vertically from the wound.

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