cd into ComfyUI/custom_nodes
git clone https://github.com/FlyingFireCo/tiled_ksampler.git
Start comfyui
add Tiled KSampler Node and use like KSampler
when tiling = 1 it will tile
when tiling = 0 it will behave like a normal KSampler
add Asymmetric Tiled KSampler Node and use like KSampler
when tileX = 1 it will tile in the X direction
when tileY = 1 it will tile in the Y direction
You'll need to use this when decoding the image, otherwise you'll get bleeding around the edges. It basically applies the Circular padding during decoding as well.
Based off WAS Studio
using the example for tiling from Automatic1111
GBJI for pointing to https://github.com/tjm35/asymmetric-tiling-sd-webui/ for asymmetric tiling
hrkljus1 for pointing out information about VAE Decoder removing bleeding