Workflow Overview: Lightspeed Wan Series

These workflows are optimized for the Lightspeed Wan 2.1 and 2.2 Image-to-Video (I2V) models by darksidewalker. They are categorized into the streamlined SVI-V2-Pro series and the feature-rich Standard (v12 and below) series.

1. SVI-V2-Pro-I2V (Barebone Series)

The SVI series is designed for users who want a clean workspace without unnecessary overhead. It focuses on the core I2V logic with two critical utility modules.

A. Resolution Management (Resolution Master)

To ensure compatibility with Wan 2.2’s specific latent requirements, the source image must be precisely resized.

• Step 1: Load the source image into the Load Image node.

• Step 2: Use the dropdown (next to the TV icon) to select a target resolution (e.g., 480p, 720p).

• Step 3: Click the TV Icon to activate the selection.

• Step 4: Under 'Actions', set the slider to 16 and click the Snap button.

  • Note: This "snapping" ensures the dimensions are multiples of 16, preventing tiling artifacts or model errors.

B. Temporal Smoothing (Interpolation)

Located in a dedicated group, this module handles frame rate conversion.

• Primary Use: Converting low-FPS raw generations (e.g., 16 FPS) into smooth, high-fidelity output (e.g., 60 FPS).

2. Standard Wan Workflows (v12 and Below)

The legacy/standard workflows are "all-in-one" solutions, containing a broader suite of post-processing and utility tools:

Image to Video

• The core generative engine for Wan 2.1/2.2.

FLF Loop

• Facilitates seamless looping by utilizing First-Last Frame logic.

Downscale Image

• Safely shrinks oversized source images to prevent VRAM OOM (Out of Memory) errors.

Extract Last Frame

• Pulls the final frame of a generation to be used as a starting point for the next clip (Storyboarding).

Combine Videos

• Merges multiple generated clips into a single sequence.

Interpolation

• Increases frame rate for smoother motion.

Upscale Video

• Increases the spatial resolution of the final video output.