SVI 2 PRO with First/Last Frame (Keyframes) // Video Continuation // 3-Stage Loop Automation — SVI2Pro+FLFVideoExtension

Use this ComfyUI workflow to extend an existing video into a continuation with a prompt and keyframes; its experimental 3-Part Loop Mode uses Start, Loop, and End images plus three prompts to create a video sequence that ends at a final frame.

In 3-Part Loop Mode, the sequence moves from Start to Loop entry, repeats the loop action, then goes through Loop exit to the final frame; enabling increment can vary the loop action by cycle.

For video continuation, load an existing video and add a prompt; the workflow uses keyframes to guide the continuation.

The listed base model is Wan Video 2.2 I2V-A14B.

First/Last Frame functionality requires the latest Wan-SVI2Pro-FLF nodes.

The workflow requires ComfyUI-VideoHelperSuite, ComfyUI-KJNodes, ComfyUI-Frame-Interpolation, ComfyUI-Easy-Use, and ComfyUI-Custom-Scripts.

It also requires ComfyUI-CustomNodes-Template, ComfyUI_LayerStyle, ComfyUI_essentials, and rgthree-comfy.

Named model files include wan_2.1_vae.safetensors, wan2.2_i2v_lightx2v_4steps_lora_v1_high_noise.safetensors, rife49.pth, umt5_xxl_fp8_e4m3fn_scaled.safetensors, SVI_v2_PRO_Wan2.2-I2V-A14B_LOW_lora_rank_128_fp16.safetensors, and RealESRGAN_x4plus.safetensors.

A switch turns end_samples (Last Frame) on or off; when off, the node returns to base SVI 2 PRO behavior.

A contrast adjustment widget is available if the output looks washed out.

3-Part Loop Mode is experimental; match each prompt to its corresponding image transition.

Suggestion · not verified