User:WindPower/WalkthroughNotes

• "Long speeches" points:
  • Mini Turret Opera
  • Different Turret
  • Wheatley -> Silent meditation in neurotoxin chamber
  • Wheatley -> Hack in neurotoxin generator
  • Wheatley -> Stalemate resolution associate qualifications in glados room
• Hacks used:
  • Neurotoxin generator:
    • On every tick frame, laser going out of moving Portal is off-center.
    • Game frames are at 30 ticks/sec, the in-between frames being interpolated.
    • Interpolated frames have regular laser placement
    • Recording at 60fps would give 30fps of usable interpolated frames.
    • Solution: Record at 120fps and discard either all odd or all even frames, depending on which of these two sets contains the tick frames.
  • Tube ride:
    • Camera movement choppy during tube ride sequence.
    • To fix, record at 180fps, then for n going 3 to (number of frames - 3), increasing by increments of 3:
      • For every pixel in frame:
        • For every color component in pixel:
          • Color = 4% color of frame n-2 + 16% frame n-1 + 60% frame n + 16% frame n+1 + 4% frame n+2
      • Let resulting frame be numbered finalframe_(n/3)
  • Enrichment Sphere 3:
    • Breaking glass simulation CPU-intensive, causes laggy framerate and demo frames drops -> highly interpolated demo
      • To fix, use slowmo during the glass breaking; get a choppy sequence but it'll be 10x less choppy in final demo
      • Shift = Slow-mo key:

 alias +slowmo "demo_recordcommands 0; host_timescale 0.1"
 alias +slowmo "host_timescale 1; demo_recordcommands 1"
 bind shift +slowmo