Working on “Debris” - easier emitter for physics based objects 
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It was super fun to make! 
My entry is Defold Debris:
This is an example project on how to use built-in components and physics to achieve nice effects 
Additionally, you have a debris Lua module, if you want to spawn objects like me in this example. Everything made with built-in Defold components and Kenney assets
Explosion particlefx is made out of a single image (a white circle dot 128x128 drawn in paint).
Play it on Itch: Defold Debris by paweljarosz
Source on Github: https://github.com/paweljarosz/defold-debris
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This was fun!
I made a simple derivative of Missile Command to demo the explosions.
Play the demo - https://6689244e4250ed862e5872f6--chipper-speculoos-2f9e45.netlify.app/
Grab the source - https://github.com/benjames-171/explosion-demo
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When I saw this Community Challenge I can’t help but post my own version of explosion which I’m using right now in my game. I made it using a combination of flipbook animations, physics stuff, particles and timed screen shakes.
The GIF above does not give it much justice but it looks and “feels” so much better with sounds in the actual game.
I gotta say, I had fun doing it in Defold!
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Congrats! Explosions!
Defold’s particle feature is one of the great inventions.
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Ok. I made something… interestingly @selimanac I was going to use compute shaders for this, since I think its more suited (I didnt, went the easy slow way 
). Anyway, video and source provided.
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What a big bada boom I’d love to compare the performance differences between this and a compute shader one.
I have no idea how to use compute shaders at all, but I’m planning to start learning the basics. This is why I suggested this subject. Also, this might encourage people to test the technical preview stuff.
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Id expect a compute one to be substantially better. This has 20,000 go’s in it … it would work even better with 20,000 meshes instead (ie, I was lazy ). With compute (looking at it now) it looks like I could offload all the particle processing, and I think I could potentially use it for live mesh generation. Not sure. Will update if I get something going. Thanks for suggesting btw.
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I’m planning to do an example or a tutorial on how to use compute for something like this, but maybe someone else gets there first
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Still, it is surprising to see how well Defold is crafted. it literally iterates over 20k items in a loop. Yes, the result is not suitable for production, but it’s good to know the limits.
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If you can find some spare time, please do. Even a simple math example would be a good starting point for me.
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I think I have a compute shader running. Need to get the texture into a render output now. Have a look in the above repo (defold-explosion) and look for assets/compute and the additions in main/default.render_script. Will hopefully render the particles with it tomorrow.
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About time to announce the results! And a next challenge I hope! 
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Yes, sorry about the delay. Vacation and some other things have come in the way of this. You can expect the results to be announced this week!
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Thank you to everyone who participated in the challenge. I hope everyone enjoyed it and learned something new along the way! There were several great contributions but in the end we decided to award the following three contributions a Steam Gift Card:
Shooting Circles
by @Insality
Very nice looking explosions, and a very impressive game too!
Play: Shooting Circles 0.0.1
Source: https://github.com/Insality/shooting_circles
Post mortem: Shooting Circles - Defold ECS game example
Missile Commander
by @benjames171
Nice chunky retro style explosions w. debris. Baked into a nice little Missile Commander game to really show off the explosions.
Source: https://github.com/benjames-171/explosion-demo
Demo: https://6689244e4250ed862e5872f6--chipper-speculoos-2f9e45.netlify.app/
Explosions
by @NaakkaDev
Excellent remake of the original explosions. The demo also contains two other explosion styles.
Demo: community-challenges 1.0
Source: https://github.com/Temeez/defold-community-challenges
@Insality, @benjames171 and @NaakkaDev please ping me in a PM to arrange for transfer of your gift cards.
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Yay, amazing! Thanks for the challenge and to every participant who joined in 
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Yes, it was very interesting to see what everyone came up with!
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Wow. I just played shooting Circles and that thing feels great. Nice Job.
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@jhonny.goransson - I updated and got a compute shader working and passed the output into a fullscreen render. Something does not feel right about it though. Will have a look later, thought you might be interested:
https://github.com/dlannan/defold-explosion
The texture is a data texture showing the pos and vel in that texture.
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