prompt token sequences begin with a "beginning-of-sequence" marker <bos> and end with a repeated "end-of-sequence" marker <eos> - to make a default prompt length of <bos> + 75 prompt tokens + <eos>. the .swap() code was failing to take the column for <bos> at index 0 into account. the changes here do that, and also add extra handling for a single <eos> (which may be redundant but which is included for completeness).
based on my understanding and some assumptions about how this all works, the reason .swap() nevertheless seemed to do the right thing, to some extent, is because over multiple steps the conditioning process in Stable Diffusion operates as a feedback loop. a change to token n-1 has flow-on effects to how the [1x4x64x64] latent tensor is modified by all the tokens after it, - and as the next step is processed, all the tokens before it as well. intuitively, a token's conditioning effects "echo" throughout the whole length of the prompt. so even though the token at n-1 was being edited when what the user actually wanted was to edit the token at n, it nevertheless still had some non-negligible effect, in roughly the right direction, often enough that it seemed like it was working properly.
- Pass command-line arguments through to invoke.py via the .bat and .sh scripts.
- Remove obsolete warning message from binary install.bat
- Make sure that current working directory matches where .bat file is installed
also "Macintosh" → "macOS" to improve "We Support macOS Properly And Not Halfassed Like Other OSS Projects" signalling
Co-authored-by: Lincoln Stein <lincoln.stein@gmail.com>
Several users have been trying to run InvokeAI on GTX 1650 and 1660
cards. They really can't because these cards don't work with
half-precision and only have 4-6GB of memory. Added a warning to
the docs (in two places) about this problem.
- Add Xcode installation instructions to source installer walkthrough
- Fix link to source installer page from installer overview
- If OSX install crashes, script will tell Mac users to go to the docs
to learn how to install Xcode
NB: if we remove the version from the zip file names, we can link
directly to assets in the latest GH release from documentation without
the need to keep the links updated
- The previous fix for the "install in Windows system directory" error would fail
if the path includes directories with spaces in them. This fixes that.
- In addition, addressing the same issue in source installer, although not
yet reported in wild.
