I’ve retrofitted my L3D 8x8 cube with a PB and it’s looking almost great, but it seems that the volumetric cube mapping seems a bit odd and I think it’s due to how this cube was designed and it not matching up with how the LEDs are wired
it looks like your map is saying something to the effect of the coordinates of the pixel is calculated by the index equation for each axis, up to the length of 8 in each direction. (i’ll try not to think too hard about this poorly written definition )
I suppose this map works when a column of LEDs are daisy chained end to end, following the same zig zag throughout. However, if I made a string light version of this, it would most likely use the output expander boards, unless I decided to run a data wire back to the next set of LEDs, correct?
If I am reading the output expander documentation correctly, each channel gets assigned an index (basically a starting address), in which some similar map could potentially be used by PB to define the shape. Is that kind of the idea?