How to install and set up Automatic1111

What is Automatic1111?

A1111 is an open-source webui for Stable Diffusion, the most popular one. Dozens of collaborators work on it. Any new Stable Diffusion feature appears in Automatic repository couple of days after the announcement, so you can really try the cutting edge technology. It has downsides though, often new update can break something, but it's a problem of the most open-source software.

Where to find it?

The repository is located here: https://github.com/AUTOMATIC1111/stable-diffusion-webui

How to install it?

If you on Windows, you're lucky. There is a one-button installer, that installs all the necessary dependencies. https://github.com/EmpireMediaScience/A1111-Web-UI-Installer If you're on Linux or Mac, then follow the instructions in the A1111 repository readme. I advice to install it on SSD drive with at least 100 Gb of free space.

How to set it up to work with Stable Houdini?

In order for it to work you need to edit file called webui-user.bat (or .sh on Mac and Linux). Add --api key to the Commandline args, like this: set COMMANDLINE_ARGS= --api --theme=dark --opt-sdp-attention Save the file and start webui with this file only! After that Houdini will be able to communicate with it.

Also you will need to install and set up the ControlNet extension, like it's described here: https://github.com/stassius/StableHoudini/wiki/How-to-use-ControlNet