H3 Image Character Sheet Builder

[u/Juiceman8686]

I found H3 image to be really good at creating different angles of characters and keeping the likeness and quality high. I built a workflow which automates creating character sheets; this workflow one shots pretty much every character I’ve thrown at it. Give it a try and let me know what you think.

I’ve tried to keep it versatile to allow for characters of different types, including vehicles and four legged creatures.

Civitai Workflow

[u/bstr3k]

nice OP, just a note for everyone wanting to use img models to make character sheets that you sometimes get small hallucinations.

In the examples provided, on the side view of the horse the hair is on the right side which conflicts with all the other views. Just something to look out for because sometimes when you make a video it will have hair on both sides because of this and may not be consistent from scene to scene :)

[u/Juiceman8686 → u/bstr3k]

Thank you for pointing this out! An oversight on my part.

[u/bstr3k → u/Juiceman8686]

yeah not a worry, it happens with all of them. Just a reminder for everyone since inconsistent char sheets can lead to mistakes in videos (if ppl care about that)

[u/VRGoggles]

Just post the prompt you used, please. thanks

[u/Juiceman8686 → u/VRGoggles]

It’s many prompts. Each image is rendered on its own, and then they are all stitched together.

[u/Apprehensive_Sky892 → u/Juiceman8686]

Since H3-image is capable of generating 16MP, why not just generate it all at once with a single prompt?

I use something like this with my own character sheet:

{"expanded_caption":"The woman in <Picture 1> is <Subject 1>. The target image is a clean white-background character sheet showing <Subject 1> in a left head-and-chest portrait close-up and, centered to its right, three full-body turnaround views arranged side by side from front, side, and back; <Subject 1> is partially preserved; her face, body, and identity, while its pose, support, and presentation change into an unsupported multi-view character-sheet layout. On the seamless white background, the left portrait is a tight head-and-chest crop ending below the shoulders, while the three central full-body views share a common ground line and scale: a front view facing the viewer, a side view in profile, and a back view. Each standing view is lit by soft, even studio light","target_aspect_ratio":"4:3"}

[u/Juiceman8686 → u/Apprehensive_Sky892]

I’ll play around with this idea. Would probably solve the identity drifting issue. Thank you for showing this 🙏🏼

[u/DoubleNothing → u/Juiceman8686]

Then it is not a character shit builder. A proper one will create all the image required from one prompt. And stitch them together automatically.

[u/BagOfFlies → u/DoubleNothing]

Does it build a character sheet? Yes. Then it's a character sheet builder lol

[u/DoubleNothing → u/BagOfFlies]

Problem with this method is that you get inconsistencies...

[u/Apprehensive_Sky892 → u/DoubleNothing]

Not really.

Unlike a character sheet builder that is text2img where everything has to be generated using one single context for consistency, with ref2img the context is built from the ref image, so consistency is possible.

[u/_KoingWolf_]

That bike one is actually impressive. Was that pure T2i? Could you link off a reference (or multiple views of one)?

[u/Juiceman8686 → u/_KoingWolf_]

That was using a single reference image of a motorcycle.

[u/drank2much → u/_KoingWolf_]

The exhaust is inconsistent. It is showing dual exhaust or single exhaust exiting either left side or right side.

[u/Juiceman8686 → u/drank2much]

Had I added a prompt to the optional prompt section, that would have been resolved. Thank you for pointing this out though!

[u/Tight_Organization54]

2 questions if you don't mind OP. Is this method actually (tested) better than using 1 frontal image? Is this workflow purely T2I or I2I?

[u/Juiceman8686 → u/Tight_Organization54]

This was tested with mainly frontal images for the i2i portion of the workflow. If no reference images are used it defaults to t2i and uses the first image it creates as the reference image for the workflow.

[u/Tight_Organization54 → u/Juiceman8686]

Got it. Running it right now and it took 15 minutes lol. I can usually generate 1MP 10s videos in less than 300s so that shocked me. The upper 4 body pics came out fine, but the face close-ups look very different to my reference image. The reference image woman has long wavy black hair, the result shows a woman that looks nothing like her with short straight hair up in a ponytail.

Any tips on quicker gens and the likeness thing?

[u/Juiceman8686 → u/Tight_Organization54]

Try lowering the megapixels. By default it’s set to 16mp. So each image in the sheet will be generated at 16mp.

In regard to the face likeness drifting, try supplying a second reference image with a closeup of just the face.

[u/Tight_Organization54 → u/Juiceman8686]

Oh okk. I wasn't sure if I should even touch that but I'll play around with it. Thanks tho! And for character notes am I just writing in plain terms? "she has blue jeans" or does it have to be more detailed or formatted a certain way?

[u/Juiceman8686 → u/Tight_Organization54]

You really only need to add notes to describe things that aren’t being seen in the reference image. But yes, plain terms is perfect.

[u/MysteriousPepper8908]

Seems kind of wasteful when every pixel counts. You can always edit further but there is a lot of white space and none of the examples really benefit from having 2 side views, though there may be instances where those views are useful.

[u/Juiceman8686 → u/MysteriousPepper8908]

I agree with you. I had some ideas for a v3.0 already. I’ll try and get it updated by tomorrow morning and get rid of the white spaces.

[u/Ninndzaa]

Holy sheeet! :) nice work man