Delete First 3D Instance

Delete First 3D Instance
 1# This example deletes first 3D instance from each 3D layer in the active drawing.
 2
 3for layer in impact.active_drawing.layers:
 4    if layer.layer_type == "THREE_D":
 5        scene = layer.scene
 6
 7        if not scene.isNone():
 8            for instance in scene.instances:
 9                instance.delete()
10                break
11
12        else:
13            impact.gui.output_toolbox.add("No 3d scene")
14