Ok so i know how to make lights in d3, but when i play the map, it is very very dark 
I am aware you can change the brightness on lthe light entitty, but it seems to have little or no effect. my map is still dim.
Any ideas?
Screen shot: (click to enlarge)
you can do a lot more with your lights by pressing J once a light entity is selected there you can adjust the size of the area which the light covers.
Zombie
you probably have already done it, but make sure you recompile your map with âdmapâ
bring down the console and type: dmap yourmapname
if its under a path like maps/blah use the path in front of the mapname
but running dmap is the same as bsp-ing your map, your light should change brightness though from editing the values in the light editor.
Zombie
Hmmm i put the brightness all the way up and still no change. Maybe because when i run dmap i get a leak?
152 flooded leafs
entity reached from outside â no filling
WARNING: ******* leaked *******
0 seconds for dmap
------------- Warnings ---------------
during running dmapâŚ
WARNING: ******* leaked *******
1 warnings
The leak is a problem that needs to be fixed, but I donât think itâs related to the darkness. Iâve found that changing the âbrightnessâ value does very little. Changing the size is much more effective.
in hl mapping a leak causes the rad not to run, i think it might have an effect :?
Leaks happen when entitys make it through the hull, your hull is basicly everything that isnt detail. to find where it leaks at, goto File->Pointfile⌠after compiling and getting the leak error.
if youâre using the brightness slider to turn up your lights, thatâs probably the problem - youâre better off turning up the radius values [top left].
I found my problemâŚ
I was unaware that you are required to save your map before you dmap it 
So realistlically the brightness slider wasnt doing anything at all 
Problem sovled 