How to replace the initial image in the middle of the process

How to replace the initial image in the middle of the process

• The initial image can be replaced on a wave-by-wave basis.
• Create an empty directory as a project directory and create a [video_frame_per_wave] directory in it.
• In it, put a png file with the name of the index of the wave you want to correspond to. For example, if you have [project_dir/video_frame_per_wave/2.png], the image will be switched at the timing of the wave with index 2.
• If the image contains png info, the prompt will also be overwritten.
• It might be interesting to make a video with images you picked up at random somewhere.