compute_shader_game_of_life example: `prepare_bind_group` is called every frame about bevy

[IceSentry]

Prepare systems are expected to be called every frame. Creating bind groups is not particularly expensive and in bevy itself a lot of bind groups can change dynamically so it's easier to just always recreate them. Also, if a bind group is on an entity instead of a resource, since the render world recreates all entities every frame we need to recreate the bind groups every frame or store them somewhere else.

The code in examples is only the minimal code required to make something work. You could add code to control whether or not you want to create a bind group, that's completely up to you.

[shiki-saiki]

Thank you for the explanation!