π TITLE
WAN VACE Auto Joiner β Seamlessly Join Multiple FLF2V Clips
π SHORT DESCRIPTION (for preview)
Turn your short WAN 2.1/2.2 FLF2V clips into one long, seamless video with one click! No more ugly cuts between clips.
π MAIN DESCRIPTION
π¬ THE PROBLEM
You've generated beautiful video clips using WAN 2.1 FLF2V or WAN 2.2 FLF2V β but they're all separate 81-frame clips. Manually joining them creates visible seams where the clips meet.
β¨ THE SOLUTION
WAN VACE Auto Joiner uses VACE to intelligently blend transitions between your clips. Just put your videos in a folder, set up the workflow, and click Queue once. The workflow automatically:
- Processes each transition through WAN VACE
- Maintains visual consistency between clips
- Outputs one seamless video
π― PERFECT FOR
- Long-form video creation (combine 5, 10, 20+ clips)
- Story sequences with multiple scenes
- Music videos with flowing visuals
- Any multi-clip FLF2V workflow
β‘ EFFICIENCY
For N videos, VACE runs exactly N-1 times. No wasted computation!
- 4 clips β 3 VACE runs
- 8 clips β 7 VACE runs
- 20 clips β 19 VACE runs
π INSTALLATION SECTION
π¦ INSTALLATION
STEP 1: Install ComfyUI-Easy-Use (Required)
- Open ComfyUI Manager β Install Custom Nodes
- Search for "ComfyUI-Easy-Use"
- Install and restart
STEP 2: Install WAN VACE Auto Joiner
Option A - ComfyUI Manager:
- Manager β Install Custom Nodes
- Search for "wan_vace_auto_joiner"
- Install and restart
Option B - Manual from GitHub:
cd ComfyUI/custom_nodes
git clone https://github.com/Rhovanx/wan_vace_auto_joiner.git
STEP 3: Verify
Search for "WAN VACE Auto Joiner" in the node menu.
π HOW TO USE SECTION
π¬ PREPARING YOUR CLIPS
Name your video files like this:
clip_00001.mp4
clip_00002.mp4
clip_00003.mp4
(etc.)
Put them all in one folder.
βοΈ WORKFLOW SETTINGS
- Folder: Path to your video clips (e.g., D:\MyVideos)
- Filename Prefix: The prefix before the number (e.g., "clip")
- First Suffix: First video number (e.g., 1)
- Last Suffix: Last video number (e.g., 8)
- Width/Height: Your video dimensions
- Loop Total: Set to (Last - First)
βΆοΈ RUNNING
1. Load the workflow
2. Configure your settings
3. Click Queue ONCE
4. Wait for all transitions to process
5. Get your seamless video!
π REQUIREMENTS SECTION
π REQUIREMENTS
- ComfyUI
- ComfyUI-Easy-Use (for loop automation)
- WAN VACE model
- Video clips with matching resolution
- Each clip needs at least 17 frames
π TROUBLESHOOTING SECTION
π§ TROUBLESHOOTING
Loop only runs once:
β Check that "flow" goes DIRECTLY from For Loop Start to For Loop End
β Check that "value1" passes THROUGH the Save node
No temp folder found:
β Make sure "directory" is the same on all three nodes
Videos not detected:
β Use format: prefix_00001.mp4 (5 digits, zero-padded)
β No gaps in numbering
π TAGS (for Civitai)
ComfyUI, WAN, VACE, FLF2V, video, video-to-video, seamless, join, combine, workflow, custom-nodes, automation
π LINKS TO INCLUDE
GitHub: https://github.com/Rhovanx/wan_vace_auto_joiner
ComfyUI-Easy-Use: https://github.com/yolain/ComfyUI-Easy-Use
Description
Added validation to check video frame counts before processing. Now shows clear error messages if videos are too short (< 17 frames). Cleaned up console output.
FAQ
Comments (4)
This is amazing. Well done!
And, Happy New Year!
This is pure perfection, i couldnt be hapier. thanks for uploading this workflow. And also thanks for the good instructions to set it up.
hey thsi seems to work perfectly at 640x1120, but not any other size, it always says all video must be the same size, even if they all are the same, other than that size?
If anyone is having this problem, delete the constant nodes that connect both height and width and just connect them directly to the wan node on the right inputs in thegroup to the right