by nub on Sun Jun 22, 2014 3:06 pm
You could make a trigger_multiple brush that encompasses the fern, and make it play a sound (ambient_generic) when the player enters it. Now, making it not sound repetitive would be a little more challenging. You'd need a few different, varying sound samples that would play at random. I just don't know how you'd go about making a trigger_multiple randomly choose from a few different ambient_generic entities to play. That's your best bet though.
Now, as far as finding "foliage" sounds, that's another thing entirely. There MIGHT be some samples in Ep2, but I've never heard them. You might have to try and find some samples online, or maybe if you have, say, Crysis 1 on your PC, you could extract the foliage sounds from the .FSB archives. God knows that game has plenty of foliage sounds. The Stalker games probably have a few samples, and it's much easier to extract files from those games compared to Crysis.