gm_waterflow update 

wow its finally possible to make a map where a submarine/boat is realistically being flooded (and you could even lock yourself in a room and reinforce the door to prevent water from rushing in)

This definitely feels like gmod 9 all over again, rough and tough maps purely made to play around with the physics instead of looking flashy. And still just as fun as any other map out there. Keep it up!

Thank you Obi-Wan Kenobi, this will surely help the jedi council

The 2000s vibes are insane and the music only makes it better

instead of being solid blocks, the pistons could be a series of platforms moving in a loop, like a cogged belt, so that the water movement is constant

A rain world TTT map would be pretty sick. The map floods at semi random intervals, everyone tries to make it to safe havens. Deathrun maps could have better gimmicks, or just RP/scenario servers in a submarine

professional studios using blender: fluid simulation is very difficult. it takes hundreds of man hours to adjust parameters to get it to flow correctly, then it takes 3 days to render. some random guy in gmod: here's a real-time fluid simulation. it's not perfect, but it's pretty good .

the inner machinations of 5 pebbles

Kayava and Bioengineering playing in the background is soo epic. 🔥🔥

Finding rain world music in completely unrelated videos is awesome.

to make this map playable, i would use flags for where the water is, re-enable optimization, and just put splashing particles where water should interact with player spawned objects. particle simulations are fun for you, but not for your players

wen the rain worlded and dranage systenning. ps ifandwen you get this form of map making perfected. styling this map to be like or a recreation of rain world drainage systems but functioning would be cool.

Man, this water mod got so far so quickly on a 20-something year old game. It’s amazing to see.

Feels like one of those videos you'd see in 2010 or something.. crazy

This rocks. I love seeing people experiment with novel solutions and new ways to play with the engine. Bravo.

You could try combining the visleafs on the map give visibility almost everywhere. That might help solve the problem and allow for lighting. Or a big empty room but all the geometry is func_detail.

i never knew something like this was possible on gmod, of all games... i'm really interested to see where this is going and i hope this turns out well

This deserves more views I've never seen something like this done in gmod before

what a cool way to use water

Definitely want to extend the fill duration on the pistons. Allow more water to enter the pump so a larger amount of water will flow out. Alternatively, given the two segments, maybe have the pumps running on opposite timeframes? While one is filling the other is emptying? That way the water flow will be more consistent rather than the occasional spurts. Also, I would enclose the pump end so that the water is forced down the outflow more consistently, rather than allowing it to splash and then flow down slower. So, two pumps working in tandem to allow for more consistent waterflow, longer fill periods to allow for longer waterflow periods, and an enclosed pump exit to tighten the flowing water. The end goal, I think, should be to get the water to be constantly flowing rather than periods of starts and stops. To this effect, maybe running an actual pump design would be a good idea? A shorter piston that pushes water into a tighter pipe in higher speeds, with a valve (door) that opens to allow water up as the piston fires, but closes and stops the water after the piston extends past it. This would allow for water to fill the pipe and flow through the map without the interruption seen in the simple piston design, and require just as many moving parts.

This looks like the kind of place you'd visit in a dream and feel the fear of being trapped with no escape but to go further down into the pits. Then you wake up and look around your room asking what just happened. Good map!

feels like this kind of thing would be perfect for some half life water puzzles where you have to move the water around

This looks so cool. It feels like a tech demo from like 2011 I love it.

One piston isn't going to move very much water per minute... you could of course add more pistons, but if you could add a surface that makes the water particles teleport upwards, that'd work faster _and_ avoid piston-un-loading issues.

3:25 when youve been standing under the bucket at the water park for the past 20 minutes

This is what I always used to dream about when I was younger and into Blender water sims and gmod at the same time

the OST makes the vibe of this video much better

If water physics can collide with the collision mesh of object, it might be possible to make the pump thingy as a model instead of hammer geo brush

My brain: This video is over decade old Reality: This video is fresh

seems currently gwater operates primarily clientside, pulling collision data from observed entities if were serverside then all map entities could update collision at all times

its so well optimized that it runs this well with that many particles. insane.

Not sure how water interacts with prop_dynamics but you could make the pistons into models, and if them not rendering is the culprit of water ging through them you can give them a huge bounding box so they render through geometry at all times. Same thing with the screw, a model might be easier to handle than trying to do... that... with brushwork.

The music's kinda banger tho

Powered by PhysX Also iirc the water in the original mod didnt apply any force to objects, although I haven't personally tested it with the 2nd version. Perhaps you could make a test 'brick' wall using prop_physics or func_physbox and see if a large amount of water has enough force to push it over.

It's so bizarre seeing fullbright custom maps in Source with such realistic fluid simulations lol. Looks cool as hell! I feel like there has to be a way to force certain parts of the map to always be rendered regardless of the position of the player but I could be wrong, it's been aages since I did any serious mapping for Source.

This is sick

dude that is a really cool concept map imagine if you had to cool a reactor and you had to move water via buttons from heat exchangers back to the reactor

a game like this be fun to watch levels flood with realistic water to the brim.

DO I HEAR RAIN WORLD MUSIC

This looks way cooler than it has any right to do

Insane to see stuff like this in a source game

the mechanism you are looking for is known as a screw pump. This should cut down on the water clipping into the moving mesh and with the added benefit of pumping water at a faster rate, physics permitting, of course.

It’s unbelievable seeing things like this being done in the source engine, a game engine with code going back 20+ years! Could you imagine this being done back then?

The water coming in from the chimney reminds me of being on a big ship when there's a high wave & the water just comes splashing in.

W song choice also very cool map, neat idea, incredible that it works

I don't know how i ended up here, but this is cool af man, keep it up!

hammer scares me

That water looks really good!

hearing rainworld music outside of rainworld is really jarring

Reminds me of the maps that were dedicated to the old gore mods for gmod. shit gives me nostalgia

Don't drink the water. They put something in it! To make you forget!...I don't even remember how I got here

I remember in the early 2000's as a kid asking my dad why games never seem to have realistic water in them, and he explained it would never be possible because of the computation needed for it. Yet here we are with realistic water in Gmod of all things. Granted we're probably still a ways off from having something like this in a real game but it's mind-blowing nevertheless.

Absolutely beautiful. I can imagine hanging around a map like this, just chucking props around, playing with friends. Great work, stuff like this keeps the game I grew up with alive 🫶

this is incredible you guys are doing awesome work

My old theory was that Source 2 would have been called "Water Source" and go heavily into fluid dynamics because Portal 2 started using some.

Cayava was an excellent musical choice

this would go great with that mod where you build boats, imagine this with like a river map lol awesome

one thing i can suggest is making flat platforms slightly slanted to guide the water quicker to a certain area instead of it being stuck flat like at 3:34 the water is just sitting still slowly draining

Damn imagine like a wave machine or something but this could be so fire

Imagine that ttt waterpark map made to work with gwater!

You could make alternating pistons to have a more constant flow.

you could use multiple pistons that each take a shorter path th their own top to attain a more constant flow rate

Rain World music!!!!! I am dancing uncontrollably oh god!!!!! Straight up shmooving it!!!!

The mod's not even publicly available yet, and people are already making maps around it.

How about making some cavities/boxes into the water lifting piston, allowing it to capture A LOT more water in those cavities, like a flattened reverse water wheel?

magnificent, what was ealrier prerendered, now is a mod. love it

Rainworld music nice

you could just have a catch around the pistons that leads water back to the system. Should lower losses.

THIS IS SO AWESOMEE I'VE BEEN LOVING YOUR WORK SO FAR

I'm amazed at how water-like it is, and i realize that's the point... But the fact that it's being done in GARRY'S MOD is what makes it crazy

Consider using Hammer++'s Propper integration to convert complex geometry in to static props. Also, has anyone played around with a shader injector such as ENBSeries or Reshade to apply screenspace reflections to the water?

imagine flood 2.0 gamemode with this water

RAIN WORLD OST 🔥🔥🔥🔥🔥

"Wow! Its so magical! my pc is smoking"

rain world music

I really wish physics simulation was a bigger deal in modern gaming. Imagine a version of GMOD where you could actually build complex machines with realistic physics, fluid dynamics and aerodynamics. Maybe I am weird but I would buy a 500$ GPU just for that alone!

How awesome to see maps purely for gwater

slugcat

kayava heard, max respect

Is culling of map details based on line-of-sight? If so then perhaps it would be possible to bypass that by doing things like making map geometry transparent or maybe enclosing the entire map in an outer box to ensure the outer void of the BSP isn't in the "working area" where your water is? To my understanding, currently when you noclip outside of the map you are entering the endless empty void outside the of the level geometry and rooms as described by the map's BSP. By enclosing everything in a big box that null space would be pushed back to the outside of aforementioned giant box, letting you noclip anywhere within the box safely as long as you don't leave it. Investigation of the hammer map build/compile pipeline's optimization flags and parameters may be required to make space optimization less aggressive though. Hammer might be smart enough to notice that there's no way for a player to reach the space and cull it from the BSP instead of leaving giant empty extra unreachable rooms inside the space tree. (All uses of BSP here refer to the actual space-tree rather than the .bsp file containing both it and other level assets) There's triggers/functions to apply force to entities, right? Those might be worth investigating. I also recall that in half life 1 in the toxic waste sewers they had barrels following a giant complex loop to give the appearance of neverending barrels coming down from upstream; maybe a similar system but with buckets that cycle infinitely to scoop up and dump out water particles as they move?

i just got an idea, designing maps that incorporate gwater for fountains or waterfalls and rivers

Funny how it looks better than Blender's fluid simulator which is not only far slower but also is far more restrictive

I want this to be DM or TDM map for classic shooter like Quake or Half-Life Deathmatch

Kayava my beloved

Rain world music is on spot

my buddy ben kenobi made a map like this. crazy coincidence

This is so cool lol

We getting life like liquids on garrys mod before gta 6

Gaht dayum NASA computer

I don't know anything about gmod but it looks like the piston leaks a bit from the water bouncing. if it's possible, I think I slow acceleration at the bottom would reduce the bouncing

Impressive. Very nice.

crazy how the simulation isn't running like dog water, looks awesome

More innovative than whatever the fuck Deadlock is

this is incredible

bless you, this video deserves its success cool garrys mod content in 2024!!!!

Future is beautiful

Yeah you can't exactly model a helix in Hammer, you'll need to use something else and then import it in.

i respect the doctor who pfp

put a 2nd container inside the piston? so it's actually moving a small cup of water inside the piston instead of water filling up the piston,

instead of pistons, have a set of platforms that move up and teleport to the bottom in a kind of conveyer belt system