Wan2.2 Highspeed "FreeLength(Loop Processing)" I2V Workflow for Your Scenario (Start/End FLF2V) — v1.0

This Wan2.2 image-to-video workflow uses a start image, an end image, and scene prompts to join loop outputs into a video; its description says it can make videos of any length.

Each prompt line describes one scene, and the number of lines sets the number of loop iterations.

Prepare the final-frame image in advance and put its path in the fourth prompt field: duration (seconds) | character action | camera work | end_image filepath.

Choose this version when you can provide both a start image and an end image; a similar start-image-only version is listed separately.

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Version v1.0 is listed for Wan Video 2.2 I2V-A14B.

The workflow lists these add-ons: cg-image-filter, comfyliterals, ComfyUI_Comfyroll_CustomNodes, comfyui_essentials, ComfyUI_Ib_CustomNodes, comfyui_layerstyle, comfyui-custom-scripts, comfyui-easy-use, and comfyui-frame-interpolation.

It also lists comfyui-gguf, comfyui-kjnodes, comfyui-ollama, comfyui-videohelpersuite, Fast Groups Muter (rgthree), GetNode, rgthree-comfy, SetNode, and was-ns.

The model-file list names clip_vision_h_fp8_e4m3fn.safetensors, DetailEnhancerV1.safetensors, lightx2v_I2V_14B_480p_cfg_step_distill_rank64_bf16.safetensors, rife49.pth, umt5_xxl_fp8_e4m3fn_scaled.safetensors, usako_comfyui.safetensors, wan_2.1_vae_fp32.safetensors, Wan2.1_T2V_14

To set Length for each loop, use (Duration [seconds] × FPS) ÷ (Frame interpolation count + 1) + 1; the value can vary by loop.

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If reference-image color shifts occur after many loops, try adjusting Image Desaturate.

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KSampler input and output frame counts may differ; the description warns that a mismatch may degrade the output image.

Before setup, confirm which packages provide Fast Groups Muter (rgthree), GetNode, and SetNode.

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