The Radium 101015 is a subframe screen that I made. It is 10 pixels by 10 pixels, and displays 15 frames per second at 60fps. I used this script to make the demo.
To create a video, save the script in a ".lua" file. Draw some images out of any element but frame, add a pixel of frame on the top left, and repeat for all frames of the video. Run the script by typing "dofile("name of file.lua")" in the console.
Images are scanned in particle order.
If you are using a stamp or a save, then images are scanned row by row, starting at the top left. otherwise, they are scanned in the order they were drawn.
After running the script, there will be a glowing particle on your screen. Make a stamp of that, and paste it where the particle is in the demo. Make a stamp of the screen, and paste it somewhere. Then unpause and the video will play.
You can also paste it in the instant play version, unpause and it will play.