Redot Spout GD 0.1.0-alpha.1

Redot Spout GD 0.1.0-alpha.1

First public Redot-focused prerelease of Spout-GD for Windows x64.

Included

• Patched and rebuildable C++ GDExtension source based on you-win/spout-gd commit 867b32d.
• Debug and release Windows x64 GDExtension DLLs.
• Pinned Spout2 and godot-cpp submodules.
• SpoutViewport sender diagnostics and a safe direct-texture opt-in.
• A Redot 26.2 demo project, typed-GDScript smoke test, API notes, build provenance, and third-party notices.
• Installable ZIP that extracts directly into a Redot project root.

Verified configuration

• Redot 26.2.stable.official.4f5b14aba
• Windows x64
• Forward+/Direct3D 12
• NVIDIA GeForce RTX 4080 SUPER
• Portable OBS 32.1.2 with the Spout2 OBS source
• 1920x1080 RGBA at 60 FPS, including live animation, alpha, and sender reconnect

Known limitations

• The reliable Direct3D 12 path performs synchronous GPU-to-CPU readback and is not zero-copy.
• End-to-end latency still needs comparison against OBS Game/Window Capture under a representative stream load.
• Direct OpenGL texture sharing is experimental and disabled by default due to a tested GL/DX interop crash.
• Receiver support comes from upstream but is not covered by this fork's integration tests yet.
• Spout transports video only; capture Redot application audio separately in OBS.

Install

1. Download redot-spout-gd-0.1.0-alpha.1-windows-x86_64.zip and SHA256SUMS.txt.
2. Verify the archive checksum.
3. Extract the ZIP into the root of a Redot project.
4. Restart Redot and confirm res://addons/spout-gd/spout_gd.gdextension exists.

This release is marked as a prerelease because the transfer path is functional but not yet latency-optimized.