The Powder Toy

post bugs here by jacob1

jacob1
jacob1
188 / 28
29th Sep 2012
16th Mar 2014
Post any bugs you find here. But there aren't as many bugs that are really bugs and I don't already know about than when this first started, so also use this as a general conversation save, or to ask / tell me anything. #1 most commented save in tpt!
problems jacob1 bugreport glitch fix 960847 tptpp bugs tptplusplus glitches

Comments

  • jacob1
    jacob1     9th Jul 2018
    Also PortalPlayer, I have no idea why SDL2 is slightly slower, but I think it's because the software renderer was quick since we already had the entire render ready to give to sdl. in sdl2, I have it going through the accelerated renderer (gpu). I tried this morning to have an option to only use the software renderer, but couldn't get it to work.
  • jacob1
    jacob1     9th Jul 2018
    it's mostly single threaded, but there's a few things in other threads like newtonian gravity, and save / thumbnail downloading in the save browser.
  • _Toby_Fox_
    _Toby_Fox_     9th Jul 2018
    I just had a question, is TPT more single threaded or multi-threaded?
  • PortalPlayer
    PortalPlayer     8th Jul 2018
    jacob1: Right, that makes much more sense :) So now I'm wondering why SDL2 would make single scale slower.
  • jacob1
    jacob1     8th Jul 2018
    double scale mode is for sure slower. But, in SDL2 double scale mode is now much faster than it used to be. And single scale mode is slower than it used to be. They are very close in speed in SDL2, they are pretty far apart in SDL 1.2
  • Tron205
    Tron205     8th Jul 2018
    PortalPlayer: My computer has 3.4GHZ CPU and it used to run TPT at 500FPS. Now it runs it at 160FPS max.
  • PortalPlayer
    PortalPlayer     8th Jul 2018
    Now I'm confused. Is double scale supposed to perform better or worse than single? "In double scale mode or higher, it's a lot faster." "it has to draw everything 4 times, making it over 4x slower."
  • jacob1
    jacob1     8th Jul 2018
    because it has to draw everything 4 times, making it over 4x slower. Also I don't remember what issue you are talking about, feel free to open a new one or edit the old one, whatever you feel like doing.
  • PortalPlayer
    PortalPlayer     8th Jul 2018
    jacob1: sure, but how does making everything bigger lead to decreased rendering times? Also, with regards to my previous mentions of grids in persistent display: should I create a new issue or update the one I made for GRAV?
  • jacob1
    jacob1     7th Jul 2018
    Right now when you turn on double scale mode, it does the scaling in software. Actually in TPT's code itself. It draws everything 4 times. In sdl2, I think it does it on the gpu.