Blinking lights

Flashing lights are possible? What is the method?

Lots of ways to do this in Machinima. The best method depends on whether you want a light with an instant on/off like a strobe or camera flash, or a growing/fading light like an incandescent bulb. Where we would normally use visibility for a strobe-like flash, due to the fact that it uses fewer keyframes, visibility for lights is a bit twitchy in this release. Until the fix arrives we’ll use intensity.

First, the growing/fading light. Later we’ll use the same keyframes as a start for our strobing light.

  1. Select your light and open the Time Sample Editor tab.
  2. In this example I’ll have it start off, fade up to full intensity at frame 30, and fade down to off again at frame 60.
  3. Now that you have one cycle you can repeat it easily by using Sequencer. Select your light and drag it onto a new Sequencer track.
  4. Move the clip to the spot at which you want the blinking to start.
  5. Right click on the clip and select “Duplicate.” Move to the new clip and repeat as often as necessary. The result should be something like this:

Now we’ll modify our time samples to create the strobe effect.

  1. Click the eye icon on the Sequencer track for your light to mute it.
  2. Go back to the time sample editor, go to frame 29, and add an intensity keyframe. Set the value to 0.
  3. Go to frame 60 and change the value to fully lit, in this case 30000. (Note that if you want the light to stop flashing at some point you would set the final keyframe to 0 and set a keyframe one frame before to the fully lit value. In this case you would make a keyframe at 59, set it to 30000, and set the value of keyframe 60 to 0.)
  4. Unmute your track and play.
    You should get something like this:

Let us know if this helps.

1 Like

Dear @TManVFX Thank you very much for the detailed information. I am going to try.