Returns the data from the Readback, as a table.
data = Readback:getData()
|data||table||A flat table of numbers containing the values that were read back.|
This currently returns
nil for readbacks of
Texture objects. Only readbacks of
Tally objects return valid data.
pixel tallies, the table will have 1 number per slot that was read. For
shader tallies, there will be 4 numbers for each slot.