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99 lines
4.5 KiB
Markdown
99 lines
4.5 KiB
Markdown
---
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title: Prompting Features
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---
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# :octicons-command-palette-24: Prompting Features
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## **Reading Prompts from a File**
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You can automate `dream.py` by providing a text file with the prompts you want to run, one line per
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prompt. The text file must be composed with a text editor (e.g. Notepad) and not a word processor.
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Each line should look like what you would type at the dream> prompt:
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```bash
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a beautiful sunny day in the park, children playing -n4 -C10
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stormy weather on a mountain top, goats grazing -s100
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innovative packaging for a squid's dinner -S137038382
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```
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Then pass this file's name to `dream.py` when you invoke it:
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```bash
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(ldm) ~/stable-diffusion$ python3 scripts/dream.py --from_file "path/to/prompts.txt"
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```
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You may read a series of prompts from standard input by providing a filename of `-`:
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```bash
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(ldm) ~/stable-diffusion$ echo "a beautiful day" | python3 scripts/dream.py --from_file -
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```
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---
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## **Weighted Prompts**
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You may weight different sections of the prompt to tell the sampler to attach different levels of
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priority to them, by adding `:(number)` to the end of the section you wish to up- or downweight. For
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example consider this prompt:
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```bash
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tabby cat:0.25 white duck:0.75 hybrid
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```
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This will tell the sampler to invest 25% of its effort on the tabby cat aspect of the image and 75%
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on the white duck aspect (surprisingly, this example actually works). The prompt weights can use any
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combination of integers and floating point numbers, and they do not need to add up to 1.
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---
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## **Negative and Unconditioned Prompts**
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Any words between a pair of square brackets will try and be ignored by Stable Diffusion's model during generation of images.
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```bash
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this is a test prompt [not really] to make you understand [cool] how this works.
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```
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In the above statement, the words 'not really cool` will be ignored by Stable Diffusion.
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Here's a prompt that depicts what it does.
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original prompt:
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`#!bash "A fantastical translucent poney made of water and foam, ethereal, radiant, hyperalism, scottish folklore, digital painting, artstation, concept art, smooth, 8 k frostbite 3 engine, ultra detailed, art by artgerm and greg rutkowski and magali villeneuve" -s 20 -W 512 -H 768 -C 7.5 -A k_euler_a -S 1654590180`
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<figure markdown>
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</figure>
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That image has a woman, so if we want the horse without a rider, we can influence the image not to have a woman by putting [woman] in the prompt, like this:
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`#!bash "A fantastical translucent poney made of water and foam, ethereal, radiant, hyperalism, scottish folklore, digital painting, artstation, concept art, smooth, 8 k frostbite 3 engine, ultra detailed, art by artgerm and greg rutkowski and magali villeneuve [woman]" -s 20 -W 512 -H 768 -C 7.5 -A k_euler_a -S 1654590180`
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<figure markdown>
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</figure>
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That's nice - but say we also don't want the image to be quite so blue. We can add "blue" to the list of negative prompts, so it's now [woman blue]:
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`#!bash "A fantastical translucent poney made of water and foam, ethereal, radiant, hyperalism, scottish folklore, digital painting, artstation, concept art, smooth, 8 k frostbite 3 engine, ultra detailed, art by artgerm and greg rutkowski and magali villeneuve [woman blue]" -s 20 -W 512 -H 768 -C 7.5 -A k_euler_a -S 1654590180`
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<figure markdown>
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</figure>
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Getting close - but there's no sense in having a saddle when our horse doesn't have a rider, so we'll add one more negative prompt: [woman blue saddle].
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`#!bash "A fantastical translucent poney made of water and foam, ethereal, radiant, hyperalism, scottish folklore, digital painting, artstation, concept art, smooth, 8 k frostbite 3 engine, ultra detailed, art by artgerm and greg rutkowski and magali villeneuve [woman blue saddle]" -s 20 -W 512 -H 768 -C 7.5 -A k_euler_a -S 1654590180`
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<figure markdown>
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</figure>
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!!! notes "Notes about this feature:"
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* The only requirement for words to be ignored is that they are in between a pair of square brackets.
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* You can provide multiple words within the same bracket.
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* You can provide multiple brackets with multiple words in different places of your prompt. That works just fine.
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* To improve typical anatomy problems, you can add negative prompts like `[bad anatomy, extra legs, extra arms, extra fingers, poorly drawn hands, poorly drawn feet, disfigured, out of frame, tiling, bad art, deformed, mutated]`.
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