Command Buffer (Command Buffer) is a technical term that is extremely important in rendering and optimizing game graphics (technical art). Explanation of the function that allows developers to freely extend the drawing path by inserting arbitrary custom drawing instructions (material application, texture copy, etc.) between Unity's standard rendering processing.
Real-world analogy: Manual instructions for temporary staff to temporarily implement ``special toppings and processing steps'' between factory production lines
Command buffer is a hack method that allows a conveyor-belt assembly line to be executed by inserting temporary work instructions (list of commands) such as ``Place this special sticker here'' and ``Place a copy of this part in the adjacent tray'' at a specific point (e.g. after assembly, before painting).'' You can insert fully controlled custom processing in milliseconds at desired timings without interrupting the overall assembly flow.
Illustration: Command Buffer (Infographic that clearly illustrates the basic processing flow and mechanism of command buffer) in Japanese notation
Detailed mechanism and operating principle
Create an instance of the `CommandBuffer` class on the C# side, accumulate drawing instructions as a list, and add (AddCommandBuffer) to a specific event in the pipeline (e.g. after opaque drawing).