How is the movieclip in the SWF library implemented for animation?

Haxe
1

How is the movieclip in the SWF library implemented for animation?

2

Is it changing bit.bitmapData to form an animation?

3

var clip = Assets.getMovieClip(“swf:mcc”);
Clip is a movie clip

var mc = clip.getChildAt(0)
MC is also a movieclip

mc.getChildAt(0)
It’s a bitmap

4

Why do we need to create a video clip for each frame
Instead of directly placing a bitmap for each frame

5

Isn’t it said that the more nested, the more performance it consumes?

6

stage.current.main
OpenFL has three layers

7

stage.current.main.clip.mc.bitmap
…