ComfyUI Impact Pack: Tutorial #14 - sigma_factor in Regional Prompt

Introducing a feature through the updated "Regional Sampler" that allows adjusting the denoise level for each region.

[neonelll]

Oh I've been waiting this feature for a long time now. It's super useful for animations. Awesome job!

[makadi]

I do not fully understand no speaking no explaining, where can we download the workflow?

[drltdata]

You can download from ComfyUI from here:

And ComfyUI Impact Pack extension from here:

And ComfyUI Inspire Pack extension from here:

And workflow from here:

[fromloveandlifestory]

When loading the graph, the following node types were not found:
## make-basic_pipe [2c8c61]
i cant find this node, please help me!

[mat]

thanks for the video! is there a way to do this without inpainting? just to control attention mask before ksampler? (noob here :P)

[Chad-xdvr]

Excelent demonstation, bless you guv'nor

[sassss]

Hey, thanks for the video, I have a question. Lets say I have a picture of sunglasses, I want a portrait picture of somebody that wears that exact sunglasses. I could now figure out how to achieve this. I searched the internet but found nothing. Do you have any idea about that? I want the sunglasses consistent, but weared by different characters.



When I use ip adapter, and give that sunglasses picture input, it only give another sunglasses output, even if I prompt differently.

[AB-wfek]

Thank you so much for your continuing work and explanations, though I wonder why you chose to name the parameter something as confusing as sigma factor when denoise multiplier would be self-explanatory

[WhatsThisStickyStuff]

Can you plug a lora into one of the samplers and then use a lora only on one region in the image?

[furi]

hello Dr.Lt. Data, i am having some issues with the sigma factor. in the ksampler, the sigma factor is set to 1 in my workflow. i set the denoise to 0.8 in the regional sampler. however, no matter what sigma factor i set in the regional prompts i set, it always comes out blurry. is there a mathematical formula i should follow to find the sweet spot? i thought the sigma factor multiplied by the denoise should equal 1, however that doesnt work either.

[jedrzejtazbir]

Cool feature! I've got a question - could you explain the "additional_sigma_ratio" setting in Regional Sampler Advanced? Also what's the difference between "ratio_between" and "ratio_additional" mode?

[djivanoff]

Please help me!how to add your mask to Image Reseiver?

[ai-diary]

thank you, but can you share yuour workflow us ?