Option to unlock full live preview when generate image like older version

[pasunna]

P.S. This image is gen by 1280x1792
And the custom node that I use also shows real size when generating befor

Hi,

I'm having an issue with the KSampler live preview in the latest version of ComfyUI (v0.3.24). In previous versions, the live preview always showed the full image size, which made it easy to see details (like clothing emblems) and stop the generation if it wasn't working as expected. I hadn't updated for a long time because I didn’t want to break things, but I recently had to update due to bugs in the older version.

Now, in the current version, the live preview is very small, like a thumbnail, and the quality is low (it looks blurry even when scaled up). I can’t see the details I need to focus on, and I have to wait for the generation to complete to realize it’s wrong, which wastes a lot of time.

I’ve tried looking around for options to adjust the preview size and quality, and I even asked an AI to help modify the code (like in latent_preview.py), but it didn’t work. I’m not good at coding, so I’m struggling to fix this on my own.

Is there an option to bring back the old full-size, high-quality live preview? Or if there’s already a toggle for this, could someone please guide me on how to enable it? Any help would be greatly appreciated!

Thank you!

[ltdrdata]

1. The preview was never in full resolution originally.

2. If you want to increase the resolution limit beyond the default, you need to specify a setting in the CLI option, such as
   --preview-size 1024.

3. If you want to use a high-quality preview, you need to apply taesd.
   (If you are using ComfyUI-Manager, you can find the preview method option in the ComfyUI-Manager dialog.)

[pasunna]

hi I had alread try that --preview-size 1024. by ai
what it do is make the preview bigger but still blurry like it's use the same image in this case it's here

and yes it's may not full resolution before but it is clear and not blurry
it is look like this in old version without the letter saying what size the preview is