ClownOptions_FlowGuide

This is a small, specialized option node tied to RES4LYF's guide system - the "guide image" feature that lets you steer a generation's composition, color, or layout using a reference latent, without a full ControlNet. Longtime users rate that feature highly; one described it as "in the vicinity of img2img with highish denoise, or unsampling / flowedit / RF inversion / ad hoc controlnet for models that don't have controlnets." FlowGuide is one of the knobs that tunes how that steering behaves.

You'd reach for it only once you're already using guides and want to adjust how tightly the sampler syncs to them. If you're not running a guide in your workflow, this node has nothing to act on - it's a modifier for an existing technique, not a standalone effect.

How it works

It exposes a single sync-epsilon value and packages it into an OPTIONS object the sampler reads. "Epsilon" here is the noise/error term the sampler works with, and this controls how the flow-guided sync uses it - effectively how aggressively the guide's influence is applied as the sampler integrates. Lower values loosen the sync; higher values tighten it. The exact feel depends on the model and the guide you're using, so it's a dial-it-in setting rather than a set-and-forget one.

The input and output

• sync_eps (default 0.75) - the whole node. The default is a sensible middle; nudge it down if the guide is dominating the result too hard, up if it's barely holding the composition.

There's the standard optional options chain input, and the single options (OPTIONS) output that flows to the sampler.

Installing RES4LYF

ComfyUI Manager: search RES4LYF, install, restart. Or:

cd ComfyUI/custom_nodes
git clone https://github.com/ClownsharkBatwing/RES4LYF
pip install -r RES4LYF/requirements.txt

Portable users: embedded pip under python_embedded/Scripts/. Restart, hard-refresh with F5. No models to download.

Common issues

Nothing happens. This node only matters when a guide is actually active in your sampling. No guide, no sync to tune - it's a modifier, not a source. Make sure the guide side of your workflow is wired before reaching for FlowGuide.

Overlapping controls. RES4LYF's guide system is deep, with several ways to steer (the docs mention epsilon, flow, and pseudoimplicit guide modes, among others). If FlowGuide isn't behaving as expected, the interaction with your chosen guide mode is the likely reason - this is genuinely experimental, fast-moving code the author flags as subject to change. Change one thing at a time.

It's ignored downstream. Same rule as every ClownOptions node: the options output must reach a RES4LYF sampler's options input to have any effect.