Crystal Clear Videos: A Step-by-Step Guide to Dynamic Cutting Animations

CN
ComfyUI.org
2025-06-19 09:57:41

Create mesmerizing videos of transparent crystal objects being cut with "Crystal Cutting" workflow. Discover how to generate static images, animate cutting actions, and control styles with LoRAs. Learn more!

Use Case
Video
Best For
Video
Models
Lora
Sd
VRAM
Medium VRAM (12–16GB)
Reading Time
3 min
View Required ModelsMore Video Workflows

Workflow Overview

Create mesmerizing videos of transparent crystal objects being cut with "Crystal Cutting" workflow. Discover how to generate static images, animate cutting actions, and control styles with LoRAs. Learn more!

Content type: Workflow

Primary intent: Download

Required Models

  • Lora
  • Sd

Setup Notes

  • Install the required models before opening the workflow template.
  • Recommended hardware: Medium VRAM (12–16GB).

1. Workflow Overview

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  • Purpose:
    Named "Crystal Cutting", this workflow generates dynamic videos of transparent crystal objects being cut. Key features:

    • Static Image Generation: Creates high-transparency crystal objects (e.g., watermelon, cherry) via Stable Diffusion.

    • Video Animation: Uses WanVideo nodes to animate cutting actions (e.g., knife slicing crystal watermelon).

    • Style Control: LoRAs (e.g., Glass&Crystal Fruits-F1_V1) enhance material realism.

2. Key Components

Critical Nodes:

  1. WanVideoModelLoader:

    • Loads video model (Wan2_1-I2V-14B-480P_fp8_e4m3fn.safetensors).

    • Plugin: ComfyUI-WanVideoWrapper.

  2. WanVideoTextEncode:

    • Inputs cutting prompts (e.g., "A knife cutting a transparent crystal watermelon").

    • Negative prompts avoid artifacts (e.g., "blurry, low quality").

  3. WanVideoImageClipEncode:

    • Encodes static images into video latent frames (resolution 832x832, 49 frames).

  4. WanVideoSampler:

    • Sampler: unipc, 6 steps.

  5. VHS_VideoCombine:

    • Outputs MP4 video (16fps, CRF=19).

Dependencies:

  • LoRA Models:

    • CakeCutting(WanVideo2.1 I2V LoRA)_V1: Must be placed in models/loras/.

  • Plugins:

    • ComfyUI-VideoHelperSuite: For video synthesis.

    • ComfyUI-WanVideoWrapper: Install manually via GitHub.

3. Workflow Structure

Groups:

  1. Static Image Generation:

    • Uses KSampler to generate crystal objects (resolution 768x1024, fixed seed).

    • LoRA (Glass&Crystal Fruits-F1_V1) enhances textures.

  2. Video Animation:

    • WanVideoImageClipEncode converts images to video frames.

    • WanVideoSampler controls cutting motion smoothness.

  3. Post-Processing:

    • VHS_VideoCombine renders final video (with metadata).

4. Inputs & Outputs

  • Inputs:

    • Image: Static crystal object (e.g., jimeng-2025-06-19-5212.png).

    • Text: Bilingual prompts (e.g., "Transparent crystal watermelon + cutting action").

    • Params: Resolution 832x832, FPS 16.

  • Output:

    • MP4 video (e.g., WanVideo2_1_T2V.mp4).

5. Tips & Warnings

  • VRAM: ≥12GB GPU recommended for video generation.

  • Paths: Verify LoRA/model file paths.

  • Frame Limit: High frames (e.g., 49) may slow generation; test with 24 frames first.

FAQ