Ohh polar?? Can you suggest some specific patterns using polar coodinates so I can look at some code? Or even 3d patterns that do rotational things outside y,x,z axis? Or suggestions for ring patterns might work?
I was a bit surprised there aren’t any sphere patterns. I know it’s a niche but led “balls” of various geometry aren’t that unusual in the led maker community. I suppose folks are rolling their own art and not relying on things like pixelblaze that have premade patterns. Pity.
So uniform cartesian and polar patterns are nice but they ignore the unique structure and one of the things I found in spending lots of time writing patterns for low pixel count rings is that patterns that are specific to the structure have a lot of appeal versus just treating it as a generic “ring”. This is a challenge with low face count polyhedra like dodecahedron (D12) and icosahedron (D20) that is shared by the infinity cube type builds as well, especially non-uniform ones like the cubocahedron (D14, squares and triangles).
So this shape does have some interesting symmetry. A symmetric four face vertex:
And a symmetric 3-face vertex:
There’s also 3 kinds of asymmetrical 3-face vertices.
One of the things I’d like to explore is mapping the led faces to a network structure and writing patterns that rely on network traversal or network symmetry. This is a bit challenging with a neutered language like pixelblaze that doesn’t support classes and structures. Anyway you can do it all with arrays and global functions, it’s just a lot more work and a bit of an archaic approach from a programming perspective.