Reference

Quick lookup for gdrl CLI flags, AIController API, and ONNX export.

Full reference

See godot_rl_course_reference.html for the complete plugin API reference.

gdrl common flags

Flag	Default	Description
--experiment_name	—	Name for logs and saved model
--viz	off	Show Godot window during training
--timesteps	1 000 000	Total environment steps
--speedup	1	Time scale multiplier (headless only)
--n_parallel	1	Number of parallel Godot instances
--save_model_path	—	Path to save trained .zip model
--onnx_export_path	—	Path to export .onnx for Godot inference

AIController lifecycle

_ready()          → register with Sync node
get_obs() → Array → return observation vector
set_action()      → receive and apply action
get_reward() → float → return scalar reward
get_done() → bool → return episode-end flag

ONNX inference in Godot

1. Train and export: --onnx_export_path=brain.onnx
2. Copy brain.onnx into the Godot project folder
3. Sync node → Control Mode → Onnx Inference
4. Sync node → Onnx Model Path → path to .onnx
5. Play scene — no Python required