Question Beautiful particle system renders

How can one make artworks similar to this one in Unity?
This is intro to unite now 2020 conference. There’s also animation of this particle system. Link to video I’m talking about, just watch first seconds of it

 

VFX graph and PostProcessing (mainly bloom)
You can see some interesting effects here: https://github.com/keijiro/SdfVfxSamples

And find many others around the net. But mostly just watch some tutorials on VFX graph and play around with it

 

Thank you, for your reply. I will look into it.