Turn on turbo mode (shift+flag or see inside, edit, then turbo mode). This has some updated features from my previous test, including lights, a few more textures, and cylinders. This is an example rendering. Click "see inside" to make your own.
Backstory: Ever since May 2020, I've wanted to make a 3D simulation on scratch. I'd seen things like that done before, but I wanted to do it myself. In August, I made a 3D-ish ball that "reflects" light from a flashlight. In October, I created my first 3D (ish) simulation of a cube rotating 90 degrees. During October, I created 4 or 5 more 3D-ish simulations. In December 2020, I made a 2D picture that looked 3D of a crystal ball. At the end of December, I made my first controllable 3D simulation (other than the flashlight one). I made one in February with moving 3D objects. In April, I decided to use my knowledge on 3D stuff to make a 3D rendering program on scratch. This is a continuation on my goal. The next step for me would probably be to work with reflections and more accurate shadows.