Credit to @iangove for the original project and most of the code. I made it 100% Pen and organized the code a little bit. And I added a Mode switch, to control the refresh rate. INSTRUCTIONS: 1. Click the Green Flag. 2. Watch the accretion disk. 3. Hover your mouse at the bottom of the screen to show the sliders. 4. Use the "Solar Mass" slider to change the solar mass. 5. Use the "Display Mode" slider to switch between the two modes ("Mode 1" and "Mode 2"). Mode 1: Default Mode, renders at fastest refresh rate. Mode 2: Long-Exposure Mode, trails the disk's light. :)
