I figured out a hack to make optical flow cadence work in 2D. To do optical flow cadence, I have to warp the flow field. But, the 2D animation warping function, usually used on images, would mess with the values of the flow (as if they were colors). So, I scaled them down by 1000 going in and scale them back up doing out, and it eliminates the effect it had which would make the image wobble around.
The same scaling actually messes with 3D optical flow cadence, so I leave that working at the normal scale factor.
I also made one modification to 3D optical flow cadence where it temporarily changes the sampling mehod (used by 3d warping function) to 'nearest' just for the flow warping, then restores it to it's previous value. This should help to minimize any pixel effects from warping.
After thorough testing of generation directly, I verified that it can handle tile sizes of 8. If this tile size is not met, animation does now work correctly because the images coming out of generation don't match the specified dimensions, making the prev_img wrong, which makes animation warping wrong.
Previous tile size of 64 was legacy, from notebook, and old auto1111 I believe. But, the pipeline can handle divisors of 8, verified. However, still not sure if the images produced are as good as when you use the 64 tile size, which is the size of the latent representation.
In any case, there was no limit on this before, and with these changes, it will assure that animation is always accurate. Suggest leaving slider at increments of 64. But, now if they select a dimension manually, it will be properly forced to tile size of 8, to ensure proper sizing through the engine.
Overlay mask working properly with static mask or video mask.
- made new masks.py file that we can use to consolidate other mask functions from main render code
- Overlay mask NOW WORKS WITH CADENCE. I made the function switchable between PIL rgb and np bgr and inject the function during cadence and for normal saves
- I didn't use old code. I just made this work myself.
Fixed one-off issue with hybrid video where the first frame was duplicated. (it became obvious when doing overlay video masking)
re-commented a few lines, removed some whitespace
This was an afterthought, and after further testing, I don't think it's working quite right. I'm not sure why, but removing for now. Will re-examine later.
I accidentally had color matching against video on instead of LAB at first when I was testing, so I didn't see it. Maybe I just need to convert to BGR?
Anyway, this restores the previous behavior of color matching, where if it resumes, it just matches against the prev_img.
Now requires at least two actual frames to resume, but it works.
So,
at cadence 1, you need 2 frames
at cadence 3, you need 3 frames
at cadence 10, you need 10 frames
etc.
It gets the first and last frames, reads them, and feeds them to cadence cycle properly for turbo_prev_img AND turbo_next_img, then it recreates the last frame cycle.
It automatically accounts for cadence interruptions, like if you ran out of disk space during cadence or it got interrupted. (or you delete the last few frames or whatever)
Basically, I can't make it fail now, no matter how many times I resume, or how many random frames I delete going backwards before resuming.
Try it out!
I did consider saving out any frames that were recreated, but then realized that has it's own issues with possible duplicates as well, and after testing, I just don't think it's necessary either. It works, every time, as far as I can tell.
new option to use init image as hybrid video
- you can use all normal compositing stuff with that mode.
- you can't use optical flow, because it's not a video - but - if there are already video frames in the directory, well - you should be able to still use flow and ransac modes, although I haven't tested that
changed Optical flow redo to a selection of optical flow type with None as default
- added Redo flow factor schedule
- made optical flow redo look nicer by warping the same image that it is using to compare to prev_img, then it goes in for final generation
changed Optical flow cadence to a selection of optical flow type with None as default
- added cadence flow factor schedule
Added flow guidance from last flow
- no UI change - it just works by default with hybrid motion optical flow types. It just uses the last flow as guidance, so it's a minor difference, but a little better temporal coherence on flow
changed hybrid composite to a selection with None as default
- now can set hybrid compositing to Normal (After Motion), Before Motion, or After Generation!
- Uses the same variable, optical_flow_cadence but now uses "None" for disabled and has the three optical flow methods.
- Improved reporting of cadence frames to include optical flow cadence type if one is selected
My most embarrassing commit.. I tested a bunch of different numbers of redos... except for 1... which caused an error and made me realize I had a one off problem... Tested 0, 1, 2, 3... working properly now. 1 redo yields 2 generations... as it should.
After testing it became obvious that part of the magic of the redo was letting the colors drift during redo... so, I just color matched on the way out, and it maintains it's cool factor, while maintaining colors!
Added slider for diffusion redo.
- llterally does a diffusion multiple extra times, feeding it back into itself. It is suggested to turn steps down if you turn redo up.
- while redoing, seed is randomized and restored
- fixed Optical Flow Redo so that it also randomizes and restores the seed, making it less muddy.
- Adds DIS Fine mode, and sets it as the new default
- Optical flow cadence and optical flow redo generation will now use DIS Fine, for pixel accuracy
- Adds flow guidance to hybrid flow. No setting needed, it just happens automatically, assisting the flow calculation by feeding in the last flow.
- Adds flow_factor_schedule for hybrid flow
- reduced some code for bordermode by setting a variable for the cv2 border mode translated from the user setting
- replaced Image,Resampling.LANCZOS with PIL.Image.LANCZOS
- had to add import PIL
- had heard of people on colab encountering this issue. Should fix both hybrid video and image/video color matching.
- tested, works fine locally, so I see no reason not to change
Follow up to strength 0 color match reset... prevents color match sample being replaced when strength goes to 0 if using color coherence Video or color coherence Image.
Option works in 2D/3D mode
Does a disposable generation before the actual generation to get the flow between previous image and the generation. Then, it discards that generation and warps the init_sample based on the captured flow before the actual generation happens.
- Takes twice as long (obviously)
- It can introduce smoothing, especially over time, but also adds a type of artistic consistency between frames.
- can be mixed and matched with any other modes, optical flow cadence, video, etc...
You can now color match against an image!
- the one caveat is that normal color matching is done with the prev_img. There is no prev_img for the 1st frame, so I had to force the color match on the output rather than the input. It makes the first frame look sharpened at times, since the histogram is forced on it.
I also fixed video color coherence
- I realized that it was never color matching on the first frame for video. You usually just wouldn't notice, since you're using the video.
- I also realized it was one frame off, fixed.
hithereai
rewbs
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kabachuha
Joe Toch
Jason Burbage
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