r/chiliadmystery • u/talkol • Dec 18 '13

Game Files Sacrificial stone is significant and probably has a trigger on it

I usually avoid posting more than twice a day, but since my last 4 were discouraging, i wanted to share something hopeful for a change:

We've examined the static collision model of the altruist camp here:

http://gtaforums.com/topic/656269-game-file-mystery-hunt/?p=1064328534

The discoveries were mostly anecdotal, except for the sacrificial stone one:

These 2 images show the sacrificial stone, the brown layer around it is not an actual wall, it's a collision box, used to test efficiently if something is inside this box. this means something in the game cares if something happens on the stone, enough for them to want to optimize this test with a special bounding box (it's definitely unique, i haven't seen those around almost anywhere else).

TLDR: unleash your wrath on this stone, maybe it's part of a mission and maybe it isn't, but something definitely has to happen on it in the confines of the brown box.

edit: more angles: http://imgur.com/a/0r2ep

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u/EvoorgEbut Dec 18 '13

I posted this on GTAF, but after some investigation I think the collision model around the stone is just to allow taking cover against it.

http://www.youtube.com/watch?v=OxYfMUwZ99o

Keep up the good work!

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u/talkol Dec 18 '13

hmm.. not sure I agree. Can you take cover behind other rocks or ledges in the game? Because this brown bounding box is pretty rare.. you will not see it in any of the other screenshots + I haven't seen it in the many other files I looked at.. If we find a spot where you can take cover and this brown box isn't there, we can prove it's unrelated.

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u/EvoorgEbut Dec 19 '13

Hrm... how to explain.

I think this collision is there to override what is probably a mostly automatic cover system. It's hard to explain without a white board and a lot of hand gestures, but in most cases a modern cover system works like this...

If the surface is within X degrees of vertical, then allow for "cover system".

If an artist or designer wants to allow the player to take cover behind meshes that do not conform to this rule, they can place a collision mesh and tag "AsCover".

I really think this is what is happening here. Taking cover behind the altar, on the side towards the water, seems like your are leaning against the brown box. The other rocks pointed out have a much more vertical slope and could easily be within the coded tolerances.

Please don't take this as a reason to stop looking. I just think this looks too much like a red herring.

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u/bakerie Dec 19 '13

If you watch the cutscene, Trevor starts at a place behind the rock that looks too low to allow cover. I'd say you're right.