Hosting and domain costs until October 2024 have been generously sponsored by dumptruck_ds. Thank you!
DP ENT ALPHA
From Quake Wiki
New entity field:
.float alpha;
.alpha controls opacity of the entity, 0.0 is forced to be 1.0 (otherwise everything would be invisible), use -1 if you want to make something invisible, 1.0 is solid (like normal).