Columns

.stbsp contains columns (not unlike CM_GRID)
Each column is linked to some binary data we haven't reversed yet
@r-ex actually looked at the files in ida & figured out that what I thought was a histogram colour is instead coverage_scale
idk what that does specifically, so I'm visualising it as a colour

Exporting

>>> from bsp_tool.extensions.stbsp import StreamBsp
>>> StreamBsp.from_file(".../Titanfall2/r2/maps/mp_complex3.stbsp").columns_as_obj("complex3.obj")

Colourising

In Blender python terminal

>>> for m in D.materials:
...     if len(m.name) == 8:
...         rgba = int(m.name, 16)
...         r = rgba >> 24
...         g = (rgba >> 16) & 0xFF
...         b = (rgba >> 8) & 0xFF
...         a = rgba & 0xFF
...         m.diffuse_color = [255 / x if x != 0 else 0 for x in (r, g, b, a)]

NOTE: might need to delete / rename the default material before this works

Column Data

Empty Columns

Since we use columns, there's loads of empty space
Empty columns have some bytes of column data, but all bytes are 0x00
If a column is empty: coverage_scale is 1.1754943508222875e-38 (00 00 80 00)
2177/3355 columns are empty in mp_complex3