1. Workflow Overview

This workflow is designed for Image-to-Video (I2V) generation, specializing in simulating liquid collision and splash effects (e.g., purple TV with transparent liquid). It combines WanVideo's custom models with GIMM-VFI frame interpolation, outputting MP4 videos or GIFs.

2. Core Models

• Wan2.1-I2V-14B:

  • Function: Generates video latent from images (720P support).

  • Source: Download Wan2_1-I2V-14B-720P_fp8_e4m3fn.safetensors (BF16 precision).

• UMT5-XXL Text Encoder:

  • Encodes Chinese prompts (e.g., "liquid splash") into embeddings.

  • Source: umt5-xxl-enc-bf16.safetensors.

• GIMM-VFI Model:

  • Enhances video smoothness via frame interpolation. Requires gimmvfi_r_arb_lpips_fp32.safetensors.

3. Key Nodes

4. Workflow Groups

• Group 1: Model & Encoder Loading

  • Input: Model files, LoRA, text encoder.

  • Output: Initialized models.

• Group 2: Text & Image Encoding

  • Input: Chinese prompts + image (1024x1440 PNG).

  • Output: Text/image embeddings.

• Group 3: Video Generation & Interpolation

  • Input: Embeddings + seed (e.g., 1032809127571661).

  • Output: Interpolated frames (272x272).

5. Inputs & Outputs

• Required Inputs:

  • Image: Clear subject (e.g., TV) with simple background.

  • Prompts: Positive (e.g., "transparent liquid splash"), negative (e.g., "color change").

  • Seed: Fixed (e.g., 1032809127571661) or randomized.

• Output:

  • Default: MP4 (NVENC H.264, 30FPS), optional GIF.

6. Notes

1. Hardware:

   • ≥12GB VRAM (RTX 3090+ recommended) due to UMT5-XXL and Wan2.1 model size.

2. Troubleshooting:

   • VRAM errors: Reduce resolution or disable teacache_args optimization.

   • Missing nodes: Install ComfyUI-WanVideoWrapper and ComfyUI-GIMM-VFI.

3. LoRA:

   • Download WAN2.1 ZOEY Liquid Splash_Alpha.safetensors, set weight=1.0.