is there any node in godot that can affect the opacity of all children?
I have some 3d models on the scene and I want to edit the opacity of all of those meshes to same value in gdscript. Is there any node such that I can put all meshes inside the node and just edit the node's opacity and my job is done?
Is such node exist in Godot 3?
If not, how can I easily do the same thing?