Spout2

📖 What is Spout2?

A framework that passes GPU textures directly between Windows apps, sharing video with almost no latency. It lets you bring video from avatar apps that support Spout output, like VTube Studio, into OBS with the transparent background intact, so it looks cleaner and runs lighter than a green screen or window capture. It's also widely used in video software such as Resolume, TouchDesigner, and Unity. It's free and open source, but receiving it in OBS requires separately installing the OBS Spout2 Plugin.

💡 When to Use It

When capturing your VTube Studio avatar with window capture leaves the transparency looking messy or choppy, switching to Spout2 lets you layer a clean, edge-to-edge transparent video with low load. It's also useful when putting PNGTuber software or 3D avatar app video onto your stream screen, or for VJ-style streams that feed real-time visuals made in TouchDesigner or Unity into OBS.

📋 Basic Info

🚀 How to Use

1. Step 1: On the OBS side that will receive the video, download Off World Live's OBS Spout2 Plugin from GitHub Releases, then install it with the installer (OBS_Spout2_Plugin_Installer.exe), pointing it to your OBS folder (64-bit only).
2. Step 2: Enable Spout output in the app sending the video (for example, turn on Spout2 output in VTube Studio's settings).
3. Step 3: Restart OBS, add Spout2 Capture from the "+" under Sources, and select the source's Spout Sender name.
4. Step 4: Confirm the video comes in with the background transparent, then adjust its size and position. If it doesn't display correctly, check whether OBS and the sending app are running on the same GPU.

🎬 Tutorial Video

🎉 Highlights & Comments