Kong spends a lot of the movie in the water, or on fire. Jeff White stated "We wanted to make sure it felt like the hair reacted to that. We never knew when the animators were going to get him wet, and in which way. So we would essentially have animation complete the scene. Let's say Kong reaches down and grabs a squid out of the water. Then we would run the effects simulation to get all the water splashing, and the big surface volume of the water. That was particularly challenging on the show, because even slowed down, Kong hits the water at 40 or 50 miles an hour. So first take of every effect scene was just a wave that covered him completely. Especially at the end, when he's fighting the Skullcrawler [creature]. That was just displacing massive amounts of water. There was a lot of artful carving of the water to get it to move aside. Once the water simulation's finished, then we can simulate the hair. [The system] would actually be able to measure how submerged the hair was within the water surface. So if it was fully under the water surface, like at the end, when Kong's rescuing Brie, it would measure the saturation value of the hair and know it was fully saturated. So it needed to change the style of the hair and the looseness of the dynamic, so it really flows in that underwater feel that we typically get. But then as he pulls his arms out, they could dry over time, and then re-clump the way hair naturally would. We spent a lot of time looking at gorillas getting in and out of water to figure out what the methodology needed to be there. But what was great about the system was that even in later shots where he wasn't necessarily submerged, we had a fully dry version of Kong, and a fully wet version, and then we could simply paint areas of him where we wanted him more wet. It took a long time to get the system set up, but it was incredibly useful. In fact, it also let us, if we needed a bloody area, like around his arm wound, we could paint that as wet, then say, "Okay, this is also bloody, so it's gonna take on a red tint to the fur." But it would handle everything all the way through shading, darkening the fur, making it shinier, everything to help it feel wet.

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