How to disable quad powerup player glow?

[MonkeyT]

I would like to turn-off/disable light that comes up when quad powerup (or the other powerup) is picked up and is active. Also, if i observing it correclty, screen gets brighter too, so i would like to disable it too.
is this possible with console command or must use mod to do it?
Single player, using DarkPlaces engine.

[Henry]

MonkeyT, yes you would need a mod to specifically disable single individual view tint effects, when picking up the quad for example.

If you can live with disabling all view tints, you can disable them via the gl_polyblend cvar. Be aware that this will also disable other view tints and flashes. When you pickup items or take damage or stay underwater for example.
Set the cvar to 0 to disable all of them. Set it to 1 to enable all of them.
As far as I know you cannot disable single individual view tints or flashes with cvars or commands. This can only be done with a little mod.

I do not know a cvar to disable the small light that gets spawned beneath the player when picking up powerups though. Maybe others know more.

[MonkeyT]

thanks, 'gl_polyblend' helps and the other things it does are not unwanted too.
i will still search for way to remove that powerup added light...

im thinking demo recording, disabling these hud effects makes better results with video encoding. less coplex frame differences, thus quality shouldnt degrade, in this aspect at least. f.e. keep bitrate requirements for good framerate instead.

i have other question about demo files that is maybe not related...

some demos have commands inside them that start another demo, likely consecutive, that has been recorded.

how to disable this auto-play-next?

i can do this by hex-editing and erasing command thats there at the end of file (i assume tools for editing .dem files can do this too). but can it be done by console command?
im familiar with 'startdemos' command and i can use it to play demos in order i assign them.