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 keyframes and a prompt; its experimental 3-Part Loop Mode uses Start, Loop, and End images plus three prompts to make a sequence ending 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 3-Part Loop Mode, provide Start, Loop, and End images plus three prompts; the sequence includes loop entry, repeated action, loop exit, and a final frame.

The base model is Wan Video 2.2 I2V-A14B.

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

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

Other named model files include RealESRGAN_x2plus.pth, RealESRGAN_x4plus.safetensors, rife49.pth, umt5_xxl_fp8_e4m3fn_scaled.safetensors, wan_2.1_vae.safetensors, and SVI_v2_PRO_Wan2.2-I2V-A14B_LOW_lora_rank_128_fp16.safetensors.

Additional named files include SVI_v2_PRO_Wan2.2-I2V-A14B_HIGH_lora_rank_128_fp16.safetensors, wan2.2_i2v_lightx2v_4steps_lora_v1_high_noise.safetensors, wan2.2_i2v_lightx2v_4steps_lora_v1_low_noise.safetensors, wan22EnhancedNSFWCameraPrompt_nsfwFASTMOVEV2Q8H.gguf, and wan22-enh?

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

A contrast adjustment widget is available for outputs that look washed out.

Before downloading, check that the Civitai page at https://civitai.com/models/2424922 is titled “SVI 2 PRO with First/Last Frame (Keyframes) // Video Continuation // 3-Stage Loop Automation.”

Suggestion · not verified

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

Suggestion · not verified