IAMCCS Cine Filmmaker Guide 1:1

The IAMCCS Cine pack has two guide applicators that look almost identical, and the difference is which backend contract they honor. IAMCCS Cine Filmmaker Guide 1:1 is the one built to match the LTX Director Guide behavior one-to-one - the author reimplemented the guide-data contract directly inside IAMCCS so that subgraph backends stay fully IAMCCS-owned while keeping the same semantics you'd get from LTX's own Director Guide nodes. If your workflow already speaks that language, this is the node that speaks it back.

Where the plain Cine Filmmaker Guide is the Cine-native FLF applicator, this 1:1 variant drops the strength_scale/tail_safety_frames pair in favor of two different controls: scale_by and upscale_method.

How it works

Same shape as the other applicator: positive/negative conditioning, a vae to encode guide images, the video latent, and a guide_data object. It clones the latent, preserves the noise mask, and injects the encoded guides per the contract. The differentiators:

• scale_by (0.01–8, default 1) - scales the latent resolution before applying guides. This is the interesting knob: it's not a strength slider, it's a working-resolution control. At 1.0 nothing changes; below 1.0 you effectively work at a lower latent resolution (cheaper, guides land differently), above 1.0 you upsample.
• upscale_method (nearest-exact, bilinear, area, bicubic, bislerp - default bicubic) - how that scaling is done when scale_by isn't 1.

Outputs

positive, negative, latent back out, ready for the sampler. No report on this one - it's a deliberately thin passthrough that matches the LTX Director Guide signature.

Installing it

Part of IAMCCS-nodes:

cd ComfyUI/custom_nodes
git clone https://github.com/IAMCCS/IAMCCS-nodes.git

Restart ComfyUI, or search "IAMCCS" in ComfyUI Manager. Baseline: ComfyUI ≥ 0.3.0, Python ≥ 3.12, Torch ≥ 2.8. No model downloads from the pack.

The honest take

Don't reach for scale_by hoping it's a guide-strength control - it isn't, and you'll be confused when guides get stronger/weaker for the wrong reason. Leave it at 1.0 and bicubic unless you have a specific resolution reason to change it, because the guide-data contract already carries per-guide strengths. Pick between this and the plain Cine Filmmaker Guide by which contract your graph uses, not by which looks newer. The honest caveat from the source: this node exists so IAMCCS subgraphs don't depend on LTX's own guide nodes, which is great for self-containment but means if LTX changes its Director Guide contract, this variant has to catch up. Keep the pack updated.