The Powder Toy

Galaxy_Simulation by Skitz

Skitz
Skitz
128 / 20
27th Jun 2016
5th Jul 2016
Particles' positions and colors were calculated with a Lua script I put together. View with decorations enabled (preferably also with viewing mode 8) and unpause to watch the gravity diffuse the galaxy into a cloud of particles orbiting a central mass.
spiral dontpress7 spore galaxy bigbang universe gravity nothingdisplay changegpmptemp

Comments

  • Skitz
    Skitz     28th Jun 2016
    Never mind that. I just figured it out.
  • Skitz
    Skitz     28th Jun 2016
    Might anyone know of a way to interpolate between hexidecimal color values and convert those values into their RGB number components? I would like to make the galaxy's colors smoothly change out radially from the core with realistic blackbody colors based on temperatures.
  • Anastasia_616
    Anastasia_616     28th Jun 2016
    Everyone Run, The dark matter has disappeared From our Universe +1
  • Skitz
    Skitz     28th Jun 2016
    In my Lua script, I gave every particle an initial velocity after having set their positions. The formula I used to determine orbital speeds is not realistic. I believe I need a value for the imaginary mass around which the particles may orbit. But am not sure about TPT's units. If I were to implement a brute-force gravity algorithm, I have no doubt that the program would become exceptionally slow.
  • Schmolendevice
    Schmolendevice     28th Jun 2016
    Heating up the GPMP to around 3.30 degrees allows the "stars" to linger a bit more. I've never opened up the code for TPT's newtonian gravity (mind any TPT source code), but I think a program can be written to set the orbital velocities of all particles in the "galaxy" as to achieve approximately centered circular orbits accordingly with Newton's Universal Law of Gravitation.
  • Skitz
    Skitz     28th Jun 2016
    Perhaps that may be plausible here.
  • Schmolendevice
    Schmolendevice     28th Jun 2016
    Was this the intent (or understood consequence) or am I the only one witnessing a billion year old galactic civilization rendering all of its stars into rogue solar systems via widespread shkadov thrusters?
  • Skitz
    Skitz     28th Jun 2016
    Also try viewing this in persistent display.
  • Skitz
    Skitz     28th Jun 2016
    Yes, it does. There are simple calculations using polar coordinates and a radius factor.
  • msasterisk
    msasterisk     28th Jun 2016
    I assume the script also calculates the velocities?