return 1 if fmat.has_channel('a') else 0
else:
return 0
- elif fmat.layout == 'rgtc':
+ elif fmat.layout in ('rgtc', 'latc'):
return 8 if fmat.has_channel(chan_name) else 0
elif fmat.layout in ('etc1', 'etc2'):
if fmat.name.endswith('_ALPHA1') and chan_name == 'a':