Render only on view change or script update

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:bust_in_silhouette: Asked By copy

I want to use the godot engine to render a static 3D scene.
With some UI elements and camera movement the rendered image changes. Otherwise it is static.

Is there a way to disable the auto-rendering and only render on request by GDScript?
Keeping up the fps is power hungry and I would like to avoid it.

Thanks in advance for any advice.