SVI 2 PRO with First/Last Frame (Keyframes) // Video Continuation // 3-Stage Loop Automation — SVI2PRO FLF V1

This ComfyUI workflow extends an existing video into a continuation using a prompt and keyframes, and supports an experimental loop sequence from Start, Loop, and End images plus three prompts; it combines SVI 2 Pro motion continuity with Wan 2.2 First/Last Frame control.

In experimental 3-Part Loop Mode, enabling increment can vary the repeated loop action by cycle.

For loop mode, pair each prompt with its corresponding image transition.

Suggestion · not verified

For video extension, provide an existing video, a prompt, and keyframes; the described output is a generated continuation.

For loop mode, provide Start, Loop, and End images plus three prompts; the described sequence goes from Start to Loop entry, repeats a loop action, then exits to the final frame.

The listed version is SVI2PRO FLF V1, and the base model is Wan Video 2.2 I2V-A14B.

Named node packs: comfyui-custom-scripts, comfyui-customnodes-template, comfyui-frame-interpolation, comfyui-gguf, ComfyMath, comfyui_essentials, rgthree-comfy, comfyui-easy-use, comfyui-videohelpersuite, comfyui_layerstyle, and comfyui-kjnodes.

Named model files include RealESRGAN_x4plus.safetensors, wan_2.1_vae.safetensors, wan2.2_i2v_lightx2v_4steps_lora_v1_high_noise.safetensors, wan2.2_i2v_lightx2v_4steps_lora_v1_low_noise.safetensors, SVI_v2_PRO_Wan2.2-I2V-A14B_LOW_lora_rank_128_fp16.safetensors, and umt5_xxl_fp8_e

Before setup, check which sources to use for ComfyMath, comfyui-gguf, SVI_v2_PRO_Wan2.2-I2V-A14B_HIGH_lora_rank_128_fp16.safetensors, rife49.pth, wan22EnhancedNSFWCameraPrompt_nsfwFASTMOVEV2Q8H.gguf, and wan22EnhancedNSFWCameraPrompt_nsfwFASTMOVEV2Q8L.gguf.

Suggestion · not verified

The end_samples (Last Frame) switch enables or disables First/Last Frame control without manually connecting or disconnecting inputs; when off, the node returns to base SVI 2 PRO behavior.

If an output looks washed out, try the contrast-adjustment widget.

Suggestion · not verified

The listed version is V1, while the Last Frame switch is described for V1.1 and requires the latest Wan-SVI2Pro-FLF nodes; check your version and nodes before relying on that switch.

Suggestion · not verified