fannovel16/comfyui-loopchain

ComfyUI Loopchain

A collection of nodes which can be useful for animation in ComfyUI. The main focus of this extension is implementing a mechanism called loopchain.

A loopchain in this case is the chain of nodes only executed repeatly in the workflow. If a node chain contains a loop node from this extension, it will become a loop chain.

Example

TODO: Detailed explaination.

First, install https://github.com/Fannovel16/ComfyUI-Frame-Interpolation.

Second, make a folder named heads inside of ComfyUI/inputs then put these two images into it.

Then load this workflow.

https://github.com/Fannovel16/ComfyUI-Loopchain/raw/main/demo.mp4

Nodes

• EmptyLatentImageLoop
• ImageStorageImport
• ImageStorageExport
• ImageStorageExportLoop
• ImageStorageImport
• ImageStorageExportLoop
• ImageStorageReset
• FolderToImageStorage (need a folder in input instead of an image)
• LatentStorageImport
• LatentStorageExportLoop
• LatentStorageReset

comfyui-loopchain's Issues

Can not use LatentStorageExportLoop

ComfyUI revision: 719fb2c81d716ce8edd7f1bdc7804ae160a71d3a. Short: 719fb2c

After LatentImportStorage done, I tried to use LatentStorageExportLoop, but the exception happened. The keys are the same.

Exception Info:

Error occurred when executing LatentStorageExportLoop:

expected Tensor as element 0 in argument 0, but got dict

  File "/home/…/ComfyUI/execution.py", line 151, in recursive_execute
    output_data, output_ui = get_output_data(obj, input_data_all)
  File "/home/…/ComfyUI/execution.py", line 81, in get_output_data
    return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
  File "/home/…/ComfyUI/execution.py", line 74, in map_node_over_list
    results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
  File "/home/…/ComfyUI/custom_nodes/ComfyUI-Loopchain/nodes/storages.py", line 199, in execute
    dataloader = DataLoader(torch.cat(GLOBAL_LATENT_STORAGE[key], dim=0), batch_size=batch_size)

Folder to image Storage

This node won't accept an opt pipe input

Can you clarify?

I build custom workflow graphs for comfyui. As such your loopchain nodes are very attractive to me. I also use much of MEL's nodes. I can tell from you attributions in the code that this is somewhat of a derivative work. Between the two I am very close to having what I need, but I'm not quite there. I have played with your sample workflow and if I just do what you say to do, it does what you say it will do. But it leaves me dazed and confused.

I don't really "get" the key thing. If i try to reference a file folder I get the JavaScript emoji telling me that I'm stupid. Is there a way that I can have your node load frames from a specific folder, process them in the workflow and save them in another specified folder? The way your sample flow is set up, I can't even find the output frames in the comfy directory structure.

Where I really see potential for your system is using the loopchain sequence thingy. To that end I wonder if you could modify Mel's animation builder to accept a loopchain input, and do a pull request? That would make my life so much happier.

I'm aware that this is a sort of side project for you as you remain busy with the controlnet stuff, but If you could take a little time to perfect this, I will be eternally in your debt.