# Hacklahoma AI Image Workshop (Fall 2023)

## Launching a Stable Diffusion Instance on Cloud

Go to [Google Cloud](https://console.cloud.google.com) (or any other cloud provider), and open console. 
[Trial $300 Google Cloud credits](https://cloud.google.com/free/docs/free-cloud-features). 

_Since Google Cloud seems to be very scarce on GPUs, I will use [RunPod](https://www.runpod.io/console/pods) in my demo today._

Create a VM with a GPU, at least 15GB RAM, and 30GB disk. Connect to SSH, install git, and clone this [Automatic1111 (A1111) repository](https://github.com/AUTOMATIC1111/stable-diffusion-webui).

`cd` in to the cloned directory and run:
```
$ nano webui-user.sh
```
Add the following to `COMMANDLINE_ARGS`
```
--device-id=0 --no-half-vae --xformers --share
```
and exit nano with `Ctrl+X` saving the changes.

Now we are ready to launch Stable Diffusion with:
```
bash ./webui-user.sh
```
You should see a link like `https://xxxxxxxxxxxxxxxx.gradio.live` after the webui finishes launching. Warning, do NOT share the public link, others can abuse you instance and increase your bill.

## Model Downloads

Base Models
```
SDXL1.0: https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/resolve/main/sd_xl_base_1.0.safetensors
SD1.5: https://huggingface.co/runwayml/stable-diffusion-v1-5/blob/main/v1-5-pruned-emaonly.safetensors
DreamShaper8: https://civitai.com/api/download/models/128713
```

LoRA Models: [CivitAI](https://civitai.com/models/)

### text2img generation

`text2img` can be thought of as generating visual content based on textual descriptions. Popular models include [DALL-E](https://openai.com/dall-e-2), [Midjourney](https://www.midjourney.com/home), and [Stable Diffusion](https://stability.ai/blog/stable-diffusion-public-release).

![](images/sd-latent-space.jpg)

### img2img generation

`img2img` refers to the transformation of one image into another, typically maintaining the same content but changing the style or other visual attributes.

### ControlNet (+Stable Diffusion)

![](images/cn-sd.png)


Install extension for A1111: [`sd-webui-controlnet`](https://github.com/Mikubill/sd-webui-controlnet)