"Random Paintings" is an ongoing series of semi-procedural artworks.
But they are not that random, really.

Initially I set up a procedural system that determines the rules for shapes, colors and other variables I want to work with in the current set of pictures.

 

After that I let myself be surprised what variants the system generates for me.

I then select my favorite "building blocks" and "brushes", tweak them further if necessary and start painting with them in 3D space, animating them etc.

Sometimes I even use another procedural system on top of that to paint in creative tandem with the computer.

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This way, these actually highly engineered and formulaic systems can ultimately become very intuitive tools and allow me to work in a "flow" just as if it was a "real" painting process.