setContext experimentation

Comments

• Briarfox Mod

  March 2014 Posts: 1,542

  @HyroVitalyProtago Very cool. I was trying to dig up a similar project that I did but I can't seem to find it.
• dave1707 Mod

  March 2014 edited March 2014 Posts: 8,811

  Does anyone with an iPad Air see this video. I just see a large white area. There's about 2" of white background between the text "A cool effect..." and the "Write Comment" area or next comment. On my iPad1 I see the video with no problems.
• piinthesky

  March 2014 Posts: 578

  i see it with my ipad air
• dave1707 Mod

  March 2014 edited March 2014 Posts: 8,811

  I wonder if there's a setting somewhere that I need to either turn on or turn off.

  EDIT: Never mind. I closed Codea Talk and started it up again and the video now shows.

  EDIT: Now it doesn't. It appears that it works the first time, but if I switch to another discussion and come back, I just see the white background.
• dave1707 Mod

  March 2014 Posts: 8,811

  @HyroVitalyProtago Nice effect. How are you doing that. Also, sorry for changing the content of your discussion, but I wasn't seeing anything at first.
• HyroVitalyProtago

  March 2014 Posts: 305

  @Briarfox - Thanks. If you found it, i'm more than interested !

  @dave1707 - No problems

  This effect is based on setContext and view in 3D (perspective and camera).

  -- SetContextExperiment
  
  -- SEE IT IN LANDSCAPE
  
  displayMode(FULLSCREEN)
  
  function setup()
      img = image(WIDTH-5,HEIGHT-4)
  end
  
  function draw2()
      pushMatrix()
      perspective(40, WIDTH/HEIGHT)
      camera(WIDTH/2,HEIGHT/2,150,WIDTH/2,HEIGHT/2,0,0,1,0)
      translate(0,0,-900)
      sprite("Cargo Bot:Codea Icon",WIDTH/2, HEIGHT/2)
      sprite(img,WIDTH/2, HEIGHT/2)
      popMatrix()
  end
  
  function draw()
      background(0)
      setContext(img)
      draw2()
      setContext()
      draw2()
  end
  
• Jmv38 Mod

  March 2014 Posts: 3,297

  @dave1707 i have the problem quite often too. It came with ios7. Usually i just have to kill safari and restart it, then it is ok, until it breaks again after several videos.
• dave1707 Mod

  March 2014 Posts: 8,811

  @Jmv38 I'm not sure when the problem started, but I'm currently on iOS 7.1 .
• Jmv38 Mod

  March 2014 Posts: 3,297

  @dave1707 btw i experience the == bug too, but i cant reproduce it.