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A newer version of the Gradio SDK is available: 6.31.0
title: SimamAlphaXR
emoji: 🫥
colorFrom: purple
colorTo: blue
sdk: gradio
sdk_version: 5.0.0
app_file: app.py
pinned: false
license: apache-2.0
SimamAlphaXR
Transparent video for XR: turn a rectangular video clip into a foreground layer that can float naturally in an immersive scene.
This first release is a runnable compositor, not a claim that Wan-Alpha weights are included. It creates an alpha matte from a green screen or a contrastive background and encodes a real VP9 WebM with transparency. The planned Wan-Alpha adapter will plug into the same frame/matte contract.
Outputs include transparent WebM, checkerboard preview MP4, alpha preview PNG, and JSON diagnostics. Best results come from a static green, blue, or evenly lit background and short clips.
Local run
pip install -r requirements.txt
python app.py
examples/sample_subject.mp4 is a small synthetic fixture for smoke testing
the alpha extraction and WebM export path.
Potential XR uses: virtual presenter, race engineer, driver introduction, pit crew, sponsor character, tutorial guide, or AI commentator.