Create Jaw-Dropping Object-Splitting Videos with This Specialized Workflow

CN
ComfyUI.org
2025-04-28 10:59:33

1. Workflow Overview

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This is a Wan2.1-based video generation workflow specialized in creating object-splitting visual effects (e.g., explosions, fragmentation). Key features:

  • Generates dynamic videos from a single image + text prompt

  • Supports LoRA fine-tuning (e.g., "Division" or "Bloom" effects)

  • Optional post-processing: upscaling + frame interpolation (FILM VFI)

2. Core Models

Model

Function

Source

Wan2.1-I2V-14B

Base image-to-video model

Manual download required

umt5-xxl-enc

Multilingual text encoder

Built-in

Wan2.1-Division-LoRA

Controls splitting effects style

Separate download

3. Key Nodes

Node

Purpose

Installation

WanVideoModelLoader

Loads main video model

Via ComfyUI-WanVideoWrapper

WanVideoLoraSelect

Selects effect LoRAs

Built-in

FILM VFI

Frame interpolation

Requires ComfyUI-Frame-Interpolation

VHS_VideoCombine

Video rendering

Requires ComfyUI-VideoHelperSuite

4. Workflow Structure

Group 1: Video Generation

  • Inputs: Image + prompt (e.g., "object shattering into pieces")

  • Output: 480P raw video

  • Key Params: Frames (default 81), resolution (768xauto)

Group 2: Post-Processing

  • Functions: 4x upscale + 10x frame interpolation

  • Warning: Reduce original frames/resolution to avoid OOM

5. Inputs & Outputs

Input Parameters:

  • positive_prompt: Describes splitting effect (e.g., "woman spinning and exploding")

  • num_frames: Total frames (recommend ≤81)

  • generation_width: Video width (recommend ≤768px)

Output:

  • MP4 video (H.264, 16FPS by default)

6. Notes

  1. VRAM: Minimum 12GB GPU (for 480P generation)

  2. Common Errors:

    • module 'comfy.model_management' → Insufficient VRAM, reduce frames

    • Interpolation failure → Disable FILM VFI or lower multiplier

  3. LoRA Switching: Use WanVideoLoraSelect node to change effects