GWater2 - Reaction Forces are back! 

Can you not just assume equal and opposite if you know the force exerted on the water or am I misunderstanding the problem?

02:54 that looks INCREDIBLE

god, water is so funny

20fps with that many particles is still such a massive achievement. Some new engines struggle with a lot less and you’re on gmod of all things

so THATS what the funny liquid was

3:03 the way the water makes the tower fall over, you can see all the foam/bubbles spraying down, and then the broken planks are pushed by the current on the ground makes this feel like some amazing physics tech demo you'd see at an early 2000s E3, god I wish more games took physics seriously

Gwater 3 will be more real than real life water

this is genuinely the most impressive thing i have ever seen in most engines, unbelievably great work!!

welcome back sethbling here

I can tell you're excited about the changes here. I wanted to let you know that this update really G's my Water, too.

I love that you haven't stopped at "good enough". It's not just a novelty like most mods similar to this would be, it's a fully functional water system that looks so stinkin' good. I love your work man, and I love that you're not going radio silent either. I hope you have a good day today

Water pushing a prop forward in a feedback loop? Propsurfing in the most literal sense possible.

4:52 The funni liquid recepie... 😈

garry should hire this guy

the way this mod evolves so quickly is incredible

2:53 "Thats pretty believable"?? No that's insanely believable!! Honestly one of the BEST water I've seen in any game and way cooler than fluid sim in blender; blender takes long to render, is restrained to a bounding box and is very ram/vram expensive. Your fluid sim runs in real time... And in fucking GMOD??? Wtf!! This is some next level shit, wow

I wonder if you could code something that automatically turns gmod props hitboxes into nvidia flex hitboxes. If the nvidia flex particles can interact with gmod vertices and knows the hitboxes, could you take gmod verticies and code something to turn them into nvidia flex objects? I suck at explaining and have no idea how to code.

these dev commentaries are getting crazier and crazier

These development updates are awesome, thank you for continuing the project.

This is more of sorcery than development

"Cool beans dude" - bill Clinton

this guy removed the source engines limits

valve hire this man

this is absolutely amazing

Once this is finished, it would be so cool if this was turned into the portal 2 gels and paints the floor as it slides across.

This is what interests me

reaction forces will be one of the best things to come to gwater

🤔🤔🤔 interesting, a lot of room to make it better. good luck budy you've been impressive so far, keep doing it.

when will swimming be added?

Alexadnrovich here: Make a X-Y vector force/gravity variable depending on the amount of particles colliding together, or just a proximity vector

You are the best gmod creator ever

Oh my god ambatukam!!!

Amazing 02:54 you should take a break some times! anyways Keep going!

it kinda is softbody like or jelly like that’s awesome!

Brilliant.

Imagine if Rockstar Games delayed GTA 6 for about 2 years and what they give us instead is Mee's water engine

That's crazy!

nice work!

LETS GOOOO

what i'm understanding is that every particle has a reaction force on a prop, so like what if 1 in every 8 or 16 particles have a reaction force so that there's more fps

👍

BRO I CANT WAIT FOR THIS TO BE ON THE WORKSHOP ‼️‼️‼️

valve *NEEDS* to hire this man

Great

amazes me that after 20 something years people are still tinkering with the source engine and revolutionizing game physics despite how old the engine is

Don't worry with the bugs too much, we aren't forcing you on doing work on GWater2. The results with the wooden tower were pretty nice! Maybe if you can't fix all the bugs by 0.4, maybe just have it in its most simple form without bugs (If you can).

Now it's only a matter of time before gwater exceeds blender fluid sim

The fact that any of this is possible within GMod is insane

when stuff like boats can float on that, whirlpools will be possible! and tsunamis, easy wave simulations

I have a question, is it possible to have smoke & dust particles in GWater2?

It looks like it was made in blender, thats how good it is!

Yoooo my dinosaur pc is gonna enjoy this

1000/1000

nice.

it looks so good compared to what i saw about a year or two ago which was already very impressive

gmod survive the tsunami gaming

Its my idea thanks meetric, im your big fan.

you kinda sound like you're gonna end your videos with "That's about it, thanks for watching." followed by kevin macleod's "cipher" (that is to say, you vaguely sound like sethbling)

Rest in peace funny liquid 😞

by the time gwater 2 is out i will be in a wheelchair dude

Based

the water looks like jello, makes me hungry

if you can get a list of forces applied to the particle you could do a *cpu incinerating* trace *every iteration* along *every force vector* for *every particle* *every iteration* to check for *every source entity* though if the information issue could be circumvented, could isolate forces on particles originating from entities and apply offset force to relevant entity/bone

to get rid of the water you could add that the water enters the ground

wake up babe new mee video just dropped

with water adhesion couldnt you make the affected prop tell the water it wouldnt move at all and act like part of the prop, ommitting some of the forces the particles does after first contact? could be a bandaid patch but not sure if this would break the model when you dip a prop into water

imagine this being used as water for gmod 2

Nearing the end you said the water pushed, then sticks to a surface that propelled it. You could add some code that diminish force over time, so it wouldn't endlessly push

Color to white Viscosity to max 😈

swagg :3

can you create pressure from a calculation based on how much water is above each other? that would also make the bottom pieces heavier and kinda push the wall open from the bottom making it look watery

O_O amazinggggggggggggggggggggggggggggggg

HOT

Can be nice if the mod have little structures like wood water tanks to show the cool things you can do with it

Just realized he still has the ole gwater addon on the top right

Do you perhaps have Evaporation in mind? It would be cool to see small, lone particles vanish after some time as a hidden way to clean up memory

hey I know this isn’t really related but I have a question about invmap, I have seen many huge obj maps but no like actual very good ones? Is it possible to have doors, lighting, interactive stuff, etc outside source boundaries using infmap?

have you considered adding cloth to gwater 2 like how there was cloth in gwater 1? I think with the system you have now it would look and work much better than it did in gw1. also will this work with vphysics jolt?

lets hope some nvidia flex genius pops in and unleashes secret pro info or smth

Question: If it's going to kill the frame/tick rate if it's constantly running, yet also have the flaws it has, could the checks the particles are doing be switched back and forth? So like, for a 66 tick server, 33 ticks it does this check and forces, then 33 ticks later it does the check, but runs that back though the last number and if reduced, applies a back force? Also, are you using the Froude number to scale the simulation? Just thinking you could get away with slowing it down/check less based on the particle scale anyway?

This is freaking amazing, i loved the first mod and like this even more, all you're addons and mods are amazing thsi one betterz also please add support with yout portal mod and all others thank you:3, GG

Maybe I'm misunderstanding, but is there really no static info, such as positions of particles? You effectively described a system which only provides reaction info, which would certainly be a problem. If there truly is no other information besides prop->particle collisions, you could still hack together a simulation which stores the information for your own pressure forces. You'd basically be assigning particles to props, assuming some constant forces, and communicating to a pressure system which dishes out forces based on that info. Granted, this is all assuming you have some way to know when the last time was when a particle interacted with or was in proximity to a prop that is stationary, in order to save it for later.

I have a suggestion: the dynamic water waves effect could be added to the gwater2 addon.😇

Hi mee i wanted to try you're mod by subscribing from the workshop but i noticed that another person has uploaded it on the workshop page by a guy named ORION seemed sketchy since it was not uploaded by you and the comments were off should i trust this addon? (And yes i did check the disruption on this video i just went to the workshop first)

Hmm would there be a way to basically evey now and then check if something is coliding with a particle? Like the part where you unfroze the blast door, it didn't move, but then added more water, and then it pushed the objet. Like it would be fucky but let's say there is an update to all particles once you use your gravgun to freeze or unfreeze objets?

the sad thing is that you can't do a "pressure check" without having to do it on every single particle, maybe if you found a way to represent a body of water as a single "entity" or grouping them in some way you could use the number of particles in the group as a pressure variable

The feedback on the adhesion could be controlled via a delay in the "feedback loop". This would dampen the effect of that "feedback loop" over time. I.E. just like how you dampen the sound of a delay over time in audio processing by controlling the feedback amount. Here you're kind of going backwards and implementing delay on top of the feedback so you can then control the feedback amount by delay. This could potentially also be implemented into the reaction forces loop so that you can use that "delay" as a buffer time to get information you can use to resolve the other issue. This may also mean that you can lower the amount of things that need to be done on update to instead work through a tick rate that matches the delay time.

Im sure there is some way to conserve the third law of motion... I can see how it can be so janky with the limited info Not sure if it can be implemented with flex but are you using any form of spacial partitioning to limit iteration for the reaction forces? Does not have to be anything fancy, it can be a fixed grid. Pressure is literally just symptom of kinetic energy... I wonder if putting a little bit of jiggle can at least have something happening (so it it is nonzero along boundaries)... just the worry it'd make everything unstable. So maybe jiggle under certain scenarios (if that can be managed)? I hope the energy can be modeled at least in some helpful way. Tough Funny how good the reacting forces do look tho considering what it is

waiting on the tsunami update

I havent watched any of the videos by you so i dont know if my questions have already been answered but here are my questions. 1: will gwater2 work in multiplayer and 2: will you be able to swim in the water?

I read in description this mod will release in workshop does subscribing will be enough or we gonna have to install some third party stuff ?

hopefully you will add like texture to the particles like the lava one is cool and all but its like transparent so can u some time in the future add some cool textures to the particles?

this will revolusingnize water physics for gmod, imaging being able to replace the water in construct?

For cases like the metal wall container, couldn't you, every once in a while, check when a non-negligible mass of water exists, and calculate the pressure and apply it to the props in the immediate vicinity of the mass of water? That way, the walls will "burst out" from the bottom like expected with water

do lighter objects float or do all of them sink slowly?

It would be REALLY jank, but when water settles (because it would only realistically work with settled or pooled water), what if you create a bounding box around the water which would allow buoyant props to float?

So would it be possible for the water to be constantly pushing out? EDIT: Oh damn I just saw the adhesion damn nvm

does this gwater fall through the terrain like the first gwater did?

Realistic water physics in a 20 year old engine before gta 6?

@mee Quick question, do you know when Gwater2 could be free? (if you know), I do not have money.