The "zigzag" argument is handy to create daisy-chained grids, but what
if we want to start from the other side? I don't think rotation gets us
there, but this does.

for n in `find . -name OPC.pde`; do cp template/OPC.pde $n; done

for n in `find . -name OPC.pde`; do cp template/OPC.pde $n; done

Replace deprecated registerDraw with registerMethod. Call sleep statically.

Update all Processing sketches to use the OPC.pde version from
grid24x8z_clouds that uses background/async socket management, and
doesn't grid to a halt every time the server drops out

that repeats a sequence over an LED string.

When using multiple OPC connections, prevents disconnected server(s)
from stalling the client.

struct import missing

- Remove MIDI inputs that only make sense on the Q49 keyboard
- Expire particles with zero intensity, and cap the max particles
- Lower particle generation rate

I wrote this before FC had gamma correction, I think?

This changes the doFrame() API!