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I made this from youtube and want to reuse it in music video. I am wondering how to stimulate as if lighting from skies, striking from controlled, yet randomized location and timing to music. I am slightly aware about KD trees acting like GPS, but never done this before. Maybe this can be used with sound spectrum as well?

Edit: No one has to watch the linked video. I am showing my results in the gif and the link is just a reference. My question is: how do I take this ani-node results and reuse it at specific time/location in another project? I have no problem appending it another blend file, but no idea how to control it as if a timed lighting strikes throughout a scene.

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    $\begingroup$ you should ask only one question here. So please consider to edit your question $\endgroup$
    – Chris
    May 25, 2021 at 0:53
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    $\begingroup$ Please don't make us watch entire youtube videos to figure out what your question is and where you are stuck. You can stop a video at that specific moment, right-click on it, select "Copy video URL at current time" and post it here. $\endgroup$
    – metaphor_set
    May 25, 2021 at 3:55

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I have made a loop that provides the on and off logic for the lightning. The float list provides the frame numbers for the on then the off then the on then the off etc.. on off logic

For moving around the lightning I used an empty and moved it about and inserted some key frames into the timeline. "Vector from value" node controls the amplitude of the randomnes. The "vector math multiply" node after the "vector wiggle" node makes sure the randomness only affects the x and y coordinates.

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If you want to append this to another project append the bezier curve as well as the node tree and add an empty. And select them in the appropiate nodes. Chris P who did the tutorial has tutorial called "#5 - Audio + Peak-Meter - Animation Nodes in Blender 2.8 - Tutorial Series" for learning how to use audio files to alter the animation. I have added a blendfile done in Blender 2.93 beta and animation nodes + extra nodes 2.2.2 Also you might want to append your shader tree to the file as it looks different to mine from the gif

For this blend I have disconnected the on off logic loop recconected the number of bolts node. Deleted thekeyframes for the empty. enter image description here

I have added the sound spectrum node here to give you some ideas. You add your path to your mp3,wav,flac etc file via the sound input node. You may have to fiddle with the values like amplitude etc in the sound spectrum node depending on the dynamics of your music. Doc for Sound spectrum node

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I've never used the sound spectrum node before, but I hope this gives you some ideas. I have just thought that you if you are doing visuals to repetitive music like house etc you can get the frames per a bar by mutiplying the bpm of your tune by the frames per second of the render then dividing by 60. Then divide by 4 to get frames per a beat.

Here is an answer to a question about the sound spectrum node that will help you familiarise yourself with it. sound spectrum

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  • $\begingroup$ I was able to use your on off logic and results are overall working good. Just one thing I cannot figure out, When the music is silent I want the lighting to be Off instead of On. Right now, it just stays in static location and loops the animation, once the music data starts, it begins to dance around, but sometimes music stops and I have this pillar of lighting in one place looping. How can I set it to be invisible/off when sound data is silent? $\endgroup$
    – ArtistsJoke
    Oct 9, 2021 at 19:25

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