Values
Always
Always clear the render target before drawing.
Never
Never clear the render target.
OnlyNextFrame
Clear the render target next frame, then switch to godot.Viewport_ClearMode.never.
AlwaysAlways clear the render target before drawing.
NeverNever clear the render target.
OnlyNextFrameClear the render target next frame, then switch to godot.Viewport_ClearMode.never.