Does Anyone Know how to make flashing lights and fog?

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I would say learn basics, than make some lights & some audios wired to buttons

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No, i mean make output at the button which controlls the music(sound) and a lights

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read the sticky, it has the mappers’ encyclopedia linked inside of it. Also, halfwit-2.com might have a tutorial on them.

I would say to use a logic_timer with oscillation checked,
OnTimerHigh->name of light->enable
OnTimerLow->name of light->disable

For the fog, maybe a func_smokevolume. use the Valve Developer Community to fix the texture glitch on it

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