How should i do this?

[mrpirate]

Im making a stranded map and i want an underwater cave in it.
I thought that i could carve diplacement brushes but i couldnt.

So my question is:
How can i make this?

[IMG]http://i39.tinypic.com/21nftza.png[/IMG]

like this

[IMG]http://i44.tinypic.com/e05y6o.png[/IMG]

Any help apreaciated.

[Yadda]

[url]http://developer.valvesoftware.com/wiki/Creating_Holes_in_Displacements[/url]

NEVER CARVE, EVER

[~ZOMG]

Make the whole thing with brushes, subdivide and play around with it until it looks right.

[CoolCorky]

[QUOTE=mrpirate;20917367]I thought that i could carve diplacement brushes but i couldnt.[/QUOTE]

Who told you that you could? :colbert:

[RSN]

[URL=http://img411.imageshack.us/i/unavngivetuh.png/][IMG]http://img411.imageshack.us/img411/19/unavngivetuh.png[/IMG][/URL]

I think it should look like this before subdivided, in sideview. I'm not sure though, but it's how I'd do it.

[editline]07:44PM[/editline]

but of course it should be tweaked a bit.

[Laharlsblade]

If I'm looking at this picture [url]http://i44.tinypic.com/e05y6o.png[/url] right, I think you want to be able to dive underwater, make your way to the cave, pop up into it and come out on dry land, but have the water level in the cave lower than the water level of the rest of the body of water? Well first of all, as far as I know water would never distribute itself like that, but anyway, if my understanding is correct, just use multiple brushes; one for the top, bottom, each side of the cave, and then whatever you need for containing the water. It doesn't need to be all one brush (or displacement). RSN's picture should work.

And don't carve. Don't do it. Ever. I'm serious.

[quote=God][b][i][u]Never.[/u][/i][/b][/quote]

[PacX]

[QUOTE=laharlsblade;20920976]If I'm looking at this picture[url]http://i44.tinypic.com/e05y6o.png[/url]right, I think you want to be able to dive underwater, make your way to the cave, pop up into it and come out on dry land, but have the water level in the cave lower than the water level of the rest of the body of water? Well first of all, as far as I know water would never distribute itself like that, but anyway, if my understanding is correct, just use multiple brushes; one for the top, bottom, each side of the cave, and then whatever you need for containing the water. It doesn't need to be all one brush (or displacement). RSN's picture should work.

And don't carve. Don't do it. Ever. I'm serious.

[b][i][u]Never.[/u][/i][/b][/QUOTE]

If the cave is filled up with air and air is lighter than water, it is very possible :smug:

[Laharlsblade]

[QUOTE=PacX;20921477]If the cave is filled up with air and air is lighter than water, it is very possible :smug:[/QUOTE]

Alright then smarty-pants, but you're not thinking about how the cave would've gotten there. Since sea levels haven't risen enough, the underwater cave almost certainly would've come from a collapse or shift in the ground far beneath the earth's surface, causing the dirt to fall to fill up the space below. But since the entrance is underwater, water would be the only thing to fill it up, and therefore would have filled the cave.
:eng101:

And before someone brings it up yes I know there's other explanations for the cave.

[CoolCorky]

Just a reminder: Source doesn't really like expensive (real-time reflection) water on 2 different height planes.

[Firegod522]

[QUOTE=CoolCorky;20922069]Just a reminder: Source doesn't really like expensive (real-time reflection) water on 2 different height planes.[/QUOTE]

True, but if you used a cheap water it should be fine.

[[yournamehere]]

Or you could use the best of the best and post pics of the result?
Take a look at the subdividing thread somewhere in this forum, it has a lot of pictures of how to set that kind of thing up.
Also, already stated but can't be said enough, don't carve.

[mrpirate]

Thx for the help.

But from what your saying i can understand i have to remake my map.

[Legend286]

[QUOTE=CoolCorky;20922069]Just a reminder: Source doesn't really like expensive (real-time reflection) water on 2 different height planes.[/QUOTE]

Can be fixed by adding nodraw around the second water block, which would block vis (the nodraw should be inside the rock.)

[mrpirate]

Okay i made a cave entrance by clipping in the displacements and put some brushes there.
But how i get this to look like an actual cave entrance?
[IMG]http://i39.tinypic.com/18ox3k.jpg[/IMG]

[RSN]

You make them displacements and subdivide them :)

[mrpirate]

[QUOTE=RSN;20925450]You make them displacements and subdivide them :)[/QUOTE]

Thanks

[editline]12:38AM[/editline]

Is this whats supposed to happen?
[IMG]http://i44.tinypic.com/2hek1dy.png[/IMG]

I cant just get the cube and then work out from that? Instead of start working out from a squere thats overlaping and shit.

[Cruma]

:lol:

Sorry but trying to explain to you how to properly make what you're trying to achieve by you posting a picture and us answering will not only take a LONG time, but it will also be very, very inefficient. Go read up some tutorials on displacements on sites such as [url]www.interlopers.net[/url] and [url]www.halfwit-2.com[/url]

[WastedJamacan]

there was a tutorial thread on subdivision somewhere around here recently...

[editline]06:45PM[/editline]

[url=http://www.facepunch.com/showthread.php?t=820489&highlight=subdivision]Found it.[/url]

[mrpirate]

[QUOTE=WastedJamacan;20926027]there was a tutorial thread on subdivision somewhere around here recently...

[editline]06:45PM[/editline]

[url=http://www.facepunch.com/showthread.php?t=820489&highlight=subdivision]Found it.[/url][/QUOTE]

Thanks, but it dosnt tell how i add the "edgeloops".
Can you explain how i add the edgeloops?

[IronPhoenix]

By clipping

[quote]As you can see i've merely selected the cube, gone in 32 units from edge, clipped it and done that for all the edge.[/quote]

[WastedJamacan]

[QUOTE=mrpirate;20926185]Thanks, but it dosnt tell how i add the "edgeloops".
Can you explain how i add the edgeloops?[/QUOTE]

If you read the whole thread, you will find that someone else had the same problem. They did not know what edgeloops were, so they posted a question on that thread, and, sure enough, it was explained.

[mrpirate]

[QUOTE=IronPhoenix;20926281]By clipping[/QUOTE]

Okay i get it now, i just thought there was an automatic way.

[MotherMinge]

[QUOTE=laharlsblade;20921811]Alright then smarty-pants, but you're not thinking about how the cave would've gotten there. Since sea levels haven't risen enough, the underwater cave almost certainly would've come from a collapse or shift in the ground far beneath the earth's surface, causing the dirt to fall to fill up the space below. But since the entrance is underwater, water would be the only thing to fill it up, and therefore would have filled the cave.
:eng101:

And before someone brings it up yes I know there's other explanations for the cave.[/QUOTE]
Air could have come from geothermic activity.

[Laharlsblade]

[QUOTE=MotherMinge;20929332]Air could have come from geothermic activity.[/QUOTE]

Indeed it could, but not into a water filled cave; in order for the air to get in it would have to displace the same volume of water out. The force of the air pushing up would be much less than the force needed to move the water seeing as the water would have to move down under the top lip of the cave; therefore, the air would simply continue along any cracks that popped up in the ground until it made its way to the surface.

:eng101:

And if anyone wants to dispute this we can do it over PM, but feel free to leave any agree or disagree ratings you want. I'm not gonna be surprised if someone proves me wrong.

[robmaister12]

[QUOTE=CoolCorky;20922069]Just a reminder: Source doesn't really like expensive (real-time reflection) water on 2 different height planes[B] if the two planes can be rendered at the same time while standing in a visleaf[/B].[/QUOTE]

:eng101:

It's entirely possible to have two different water planes at different heights as long as both cannot be seen from any location in the map. This map should be fine, unless there were some large air vent where you can look down into the cave and see the water while standing on the coast.

[PacX]

[QUOTE=laharlsblade;20921811]Alright then smarty-pants, but you're not thinking about how the cave would've gotten there. Since sea levels haven't risen enough, the underwater cave almost certainly would've come from a collapse or shift in the ground far beneath the earth's surface, causing the dirt to fall to fill up the space below. But since the entrance is underwater, water would be the only thing to fill it up, and therefore would have filled the cave.
:eng101:

And before someone brings it up yes I know there's other explanations for the cave.[/QUOTE]

Actually I was thinking of it, but then I realized this is GMod :smug:

And caves like this does actually exist in the real world :D They're just quite rare (Cave-wise).

[RSN]

I will post a picture on how to do it in an hour or something.

[Legend286]

Looks like you just selected the brush and went and made it all a displacement and subdivided it, that's why they look like decompressed balloons. Just select the actual textured faces and turn them into displacements instead of the whole brush.

[RSN]

My hammer fucked up. But i will try to post the pics on how to do it as soon as possible.

[editline]10:22PM[/editline]

Despite the extreme uglyness, is this the basic idea?

- The entrance when you are underwater.
[URL=http://img193.imageshack.us/i/cavea.png/][IMG]http://img193.imageshack.us/img193/9569/cavea.png[/IMG][/URL]
- When you are allmost in the "cave".
[URL=http://img121.imageshack.us/i/cave3.png/][IMG]http://img121.imageshack.us/img121/453/cave3.png[/IMG][/URL]
- In the cave.
[URL=http://img693.imageshack.us/i/cave2x.png/][IMG]http://img693.imageshack.us/img693/8313/cave2x.png[/IMG][/URL]

[WastedJamacan]

looks like what he wants