Welcome to the CSC Q&A, on our server named in honor of Ada Lovelace. Write great code! Get help and give help!
It is our choices... that show what we truly are, far more than our abilities.


+9 votes
asked in CSC 150 January201920 by (8 points)

3 Answers

+4 votes
Best answer

Kashav is basically right, but I'll elaborate a few more options.

Within NetLogo, your main options are:

1) have your turtles move faster
2) call the vid:record-view less frequently. Specifically, if you're using the tick clock to count up, then you could put in code like this:

  if ticks mod 3 = 0 [ vid:record-view ]

which would make it so that you only save a video frame every time the tick counter is at an even multiple of 3. Then your resulting video should run 3 times faster.

After you've created a video, if you want to change its speed, then you'll want to use a 3rd party video editor.

Personally, I don't do very much video editing, but when I do I often use FFMPEG (https://www.ffmpeg.org/download.html#build-windows) It's a pretty powerful tool, but it's command-line only, not graphical, so you have to get comfortable typing black text on a white screen, and googling a lot for the appropriate commands to run. https://trac.ffmpeg.org/wiki/How to speed up / slow down a video

For something a little more user friendly, you might take a look at Avidemux (http://fixounet.free.fr/avidemux/). Here are some directions about how to change the "frame rate" to speed up or slow down a video here. https://filmora.wondershare.com/avidemux/how-to-make-timelapse-with-avidemux.html

However, other students may have better suggestions for video editing software than I do!

answered by (18.1k points)
selected by
+5 votes

I think you need to make the movement of the turtles faster so that it moves quickly through the screen. or you can use third-party software to manually increase the speed.

answered by (2.3k points)

Do you have any suggestion for the third-party software ?


I personally like Sony Vegas Pro, you could get a trial version or you can even use the video editor included in windows OS.


If you have a Mac, you could use iMove. If not, any movie editor should be able to speed up the movie.

+1 vote

another approach is you can use a video editor to combine all the videos you have and increase the speed.

answered by (2.6k points)