RedNode Post Process

RedNode Post Process is the Studio Workspace's Post tab, as a node you can drop anywhere in your graph. Wire the finished image in, the graded image out. It finds the Workspace's Post tab by itself - you don't wire the chain into it - so if you're already running a RedNode Studio Workspace, this is the node that applies your grading settings at the exact point in the pipeline you choose.

Think of it as the sibling of RedNode Post FX. Both run the same chain, applied in physical camera order: grade first, then the air in front of the lens, then the lens itself, then the film behind it. The difference is where the settings live. Post FX carries every control on the node, standalone. Post Process reads its chain from the Workspace's Post tab, which means one set of grading knobs drives your whole workflow - and the node just applies whatever the tab says.

That makes it the right tool when you have one place you grade from and you want that to control the finished frame. Post FX is the better fit when you don't run the Workspace at all and want the controls sitting right there.

How it works

The node takes your image in and walks the grading chain from the Post tab's config - denoise, colour, clarity and sharpen to repair and grade; haze for the air; distortion, depth of field, chromatic aberration, bloom, light wrap and diffusion for the lens; halation, highlight roll-off and grain for the film. You tune the tab, the tab drives the node. Because it "finds the Studio Workspace's Post tab by itself", the only input that matters is the image itself - there's no post settings socket to wire, no config string to paste.

The inputs and output

Just one real input:

• image - the finished image, straight off a VAE decode or the tail of your chain. That's it.

And one output:

• image - the graded frame. It's an ordinary IMAGE, so it feeds any save node, video encoder, or review node downstream.

Everything else is inherited from the Workspace's Post tab. If you wire this node into a workflow that has no RedNode Studio Workspace anywhere in it, there's no chain to inherit - so this is a node you use alongside the workspace, not instead of it. For the standalone experience, that's what Post FX exists for.

Installing it

Same pack as everything else in RedNode Studio:

git clone https://github.com/RedNodeAI/ComfyUI-RedNodeStudio.git ComfyUI/custom_nodes/ComfyUI-RedNodeStudio

Restart ComfyUI, and you're done. No pip dependencies, no model downloads, no ffmpeg to chase - the grading is deterministic pixel work. Python 3.10 or newer is the only requirement, and unlike the pack's Krea 2 nodes this one runs against any model on any reasonably current ComfyUI.

The honest gotcha

If you drop Post Process into a graph without a Workspace and see no change, that's not a bug - there's no chain to apply, because the node deliberately reads it from elsewhere. Either add the Workspace, or grab Post FX instead and dial the effects on the node. It's the one decision you actually have to make with these two nodes, and it's the whole difference between them.