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4f866f2a9a
The occluders don't actually move, but are toggled when the door starts opening and finishes closing to avoid unnecessary BVH rebuilds.
31 lines
984 B
GDScript
31 lines
984 B
GDScript
extends Node3D
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var open := false
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func _input(event: InputEvent):
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if event.is_action_pressed("toggle_doors"):
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if open:
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# Close the door.
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# The occluder will be re-enabled when the animation ends
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# using `_on_animation_player_animation_finished()`.
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$AnimationPlayer.play_backwards("open")
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open = false
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else:
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# Open the door.
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$AnimationPlayer.play("open")
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open = true
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# Disable the occluder as soon as the door starts opening.
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# The occluder is not part of the pivot to prevent it from having its
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# position changed every frame, which causes the occlusion culling BVH
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# to be rebuilt each frame. This causes a CPU performance penalty.
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$OccluderInstance3D.visible = false
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func _on_animation_player_animation_finished(_anim_name):
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if not open:
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# Re-enable the occluder when the door is done closing.
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# To prevent overocclusion, the door must be fully closed before the occluder can be re-enabled.
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$OccluderInstance3D.visible = true
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