SHARP 4D Plugin for LichtFeld Studio

A 4D Gaussian Splatting plugin for LichtFeld Studio, powered by SHARP. Convert videos into animated Gaussian sequences, or convert a single image into a Gaussian scene.

Why this plugin

• Convert .mp4 videos into frame-by-frame Gaussian PLY sequences.
• Convert images into a single Gaussian PLY.
• Set exactly how many video frames to process with a frame slider.
• Built-in playback: play/pause, frame scrub, and playback FPS.
• Runs SHARP inside LichtFeld Studio.

Install

From GitHub (recommended)

In LichtFeld Studio:

1. Open the Plugins panel.
2. Enter: https://github.com/shadygm/Lichtfeld-ml-sharp-Plugin
3. Click Install.

Quick start

1. Open the panel

Open the Sharp 4D Video tab in LichtFeld Studio.

2. Select media

Use:

• Select Video File (.mp4) for video
• Select Image File for a single image

The plugin detects the media type automatically.

3. Video workflow

1. Set Number of Frames to Convert (slider).
2. If cached output exists, click Load N Frames From Disk.
3. Or click Process N Frames to run SHARP.
4. Playback starts automatically for multi-frame sequences.

4. Image workflow

1. Select an image file.
2. Click Process Image.
3. The generated output is loaded immediately.

Output location

Generated files are written next to the input as:

• <input_name>_gaussians/

For videos, this folder contains one PLY per frame (frame_00000.ply, etc.). For images, it contains one PLY for the image.

Requirements

• LichtFeld Studio

Notes

• First run may take longer because SHARP model weights need to download.
• Large frame counts can take significant time and VRAM.

Credits and License

This plugin integrates the SHARP (Spatio-temporal Hierarchical Auto-Regressive Point-clouds) architecture.

• Plugin Code: Released under GPL-3.0-or-later.
• SHARP Library: Included as a library in ml-sharp. Please refer to ml-sharp/LICENSE and ml-sharp/LICENSE_MODEL for specific usage rights regarding the model and inference code.