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.
Once I tried some different images I realized that the color balance was RGB/BGR swapped on the color matches. Ooops! This fixes it. Perfect color matching after strength 0.
I wasn't thinking about it quite right before, and I was cancelling the wrong cadence section based on strength 0. This repairs it.
It now looks at the proper strength key (from the tween frame_start_idx) to see if strength is 0 and skip optical flow cadence if it is.
Also, fixes and condenses the reporting of whether it's a cadence frame or an optical flow cadence by combining the info with the tween reporting.
I made cadence skip optical flow on frames with strength 0. This won't actually help you unless your cadence start is aligned perfectly with your strength 0.
Made strength 0 reset color match, as if it were the first frame in an animation.
I plan to make a scene change schedule, at which point I can add a strength threshold value for scene changes and replace this code.
I'll have to do some more work to track down a method to warp the flow properly in 2D mode. For now, optical flow cadence is a 3D only thing.
Made it say Optical flow cadence (3D only)
Made it hidden by default
Made it show when you switch to 3D mode
Made it not do the routines on the back end if not in 3D mode
optional checkbox to include optical flow in normal cadence
-starts by getting flow between turbo_prev_image and turbo_next_image.
- after getting the flow, it warps the turbo_next_image with negative flow to match prev
- then, normal image warping during cadence happens
- then it warps the flow field to match the animation, first converting it to relative for warp, then back to absolute flow
- I calculate the flow division for each tween value and divide that by two.
- it then applies that tweened flow to the prev and next image
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