Deprecated!! Use the physenv functions.
Here is the modifed physics.lua file to work with the physenv functions.

local MaxVelocity = CreateConVar( "phys_maxvelocity", "4000", FCVAR_NOTIFY | FCVAR_ARCHIVE | FCVAR_GAMEDLL );
local MaxAngularVelocity = CreateConVar( "phys_maxangularvelocity", "3600", FCVAR_NOTIFY | FCVAR_ARCHIVE | FCVAR_GAMEDLL );
local GravityX = CreateConVar( "phys_gravity_x", "0", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local GravityY = CreateConVar( "phys_gravity_y", "0", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local GravityZ = CreateConVar( "phys_gravity_z", "-600", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local CollisionsPerObjectPerTimestep = CreateConVar( "phys_collisions_object_timestep", "10", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local CollisionsPerTimestep = CreateConVar( "phys_collisions_timestep", "250", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local MinFrictionMass = CreateConVar( "phys_minfrictionmass", "10", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local MaxFrictionMass = CreateConVar( "phys_maxfrictionmass", "2500", FCVAR_NOTIFY | FCVAR_GAMEDLL );
local AirDensity = CreateConVar( "phys_airdensity", "2", FCVAR_NOTIFY | FCVAR_GAMEDLL );

/*------------------------------------
	UpdatePerformanceSettings()
------------------------------------*/
local function UpdatePerformanceSettings()

	local settings = physenv.GetPerformanceSettings();

	settings.MaxVelocity = MaxVelocity:GetFloat();
	settings.MaxAngularVelocity = MaxAngularVelocity:GetFloat();
	settings.MinFrictionMass = MinFrictionMass:GetFloat();
	settings.MaxFrictionMass = MaxFrictionMass:GetFloat();
	settings.MaxCollisionsPerObjectPerTimestep = CollisionsPerObjectPerTimestep:GetInt();
	settings.MaxCollisionChecksPerTimestep = CollisionsPerTimestep:GetInt();

	physenv.SetPerformanceSettings( settings );

end

/*------------------------------------
	UpdateGravity()
------------------------------------*/
local function UpdateGravity()

	physenv.SetGravity( Vector( GravityX:GetFloat(), GravityY:GetFloat(), GravityZ:GetFloat() ) );
	
end

/*------------------------------------
	UpdateAirDensity()
------------------------------------*/
local function UpdateAirDensity()

	physenv.SetAirDensity( AirDensity:GetFloat() );
	
end

/*------------------------------------
	InitPostEntity()
------------------------------------*/
local function InitPostEntity()

	UpdatePerformanceSettings();
	UpdateGravity();
	UpdateAirDensity();

end
hook.Add( "InitPostEntity", "PhysicsSettingsStartup", InitPostEntity );

// watch for changes on these convars
cvars.AddChangeCallback( "phys_maxvelocity", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_maxangularvelocity", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_collisions_object_timestep", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_collisions_timestep", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_minfrictionmass", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_maxfrictionmass", UpdatePerformanceSettings );
cvars.AddChangeCallback( "phys_gravity_x", UpdateGravity );
cvars.AddChangeCallback( "phys_gravity_y", UpdateGravity );
cvars.AddChangeCallback( "phys_gravity_z", UpdateGravity );
cvars.AddChangeCallback( "phys_airdensity", UpdateAirDensity );

Awesome. Just awesome.

Some interesting things to do with it are.

Props will only rotate and can't be moved.

Props will only move and not rotate. This leads to some reality defying structures to be built. Balance a pole on a soda can, horizontally.


If you raise phys_maxvelocity, it's up to you to accelerate objects to that new speed. Explosives won't really cut it, not unless you raise the damage push scale. So good luck trying to utilize the extra speed!

This is unbelievably awesome. I might have some use for this in Crazy Delivery...

Wow! Another excellent release, this is going to be so useful, are there any side effects to setting the max velocity to something stupidly high?

Objects may go through the world if they gain like 999999999 speed, but dunno :D

This...is...AWESOME!!!

Wait, so this allows us to bypass that stupid 115 mph limit thing?

If so, I love you.

EDIT: I love you.

Objects moving really fast may penetrate other objects. I don't think Havok was built for really fast collision detection, but I could be wrong.

Hang on, this has a .dll, does this need Metamod or something?

It's a module. GMod has built-in support for those.

I never really used modules before, but can modules now be loaded within the /addons folder, or do you have to copy them into /lua/modules directly?

I'm thinking about adding this as addition to the stargate mod to make the staffblasts faster
(Sidenote: I could use effects instead of real physical objects to make them move faster, but this causes trouble needing me to trace "probable hits" with stuff moving into the shot's way)

*dances*

You used to be able to load modules from addons, but it was removed in the switch to the newer engine.

It only affects objects with MOVETYPE_VPHYSICS, otherwise it's bound by sv_maxvelocity which appears to have been removed :(.

Reversed gravity FUCK YEAH!

Awesome.

I really don't see a need for anything else, here.
Good/excellent/awesome job. If only this could spread like a virus...or maybe a virus would be too slow...

So you made Crazy Delivery?

I played on it with a friend a while ago. It needs a help menu, and the ability to toggle camera views. I hate driving the jalopy in top-down.

Anyways, this looks freaking awesome Jinto.

I can imagine it now: cars that break the Source sound barrier!

That'd be awesome!

:4chan:

Try setting maxvelocity to something like 20000, making a explosive barrel, attaching a thruster with thrust of 100000, then pressing the button.

This is absolutely awesome!

Also, me and my friend had the maximum velocity at around 500 000, and made a test, and got the speed very high, but no prop penetration happened.

Turn phys_maxangularvelocity to 0, then spawn a jeep, put a bunch of thrusters on the front grill thing set to 10k force and pull, then put a speedometer and a screen to wire the speed...then put up phys_maxvelocity to say, 10000. It's pretty awesome, but you need a map like hugeflatconstruct.

-snip-

This is absolutely amazing. It works like a charm!

The perfect physics modification!

After messing with the gravity, and then resetting the values to default, the props seemed "floaty".

The props would behave at a slightly lower gravity, even though gravity_z was set to -600, or even default.

High-speed test #1.

You almost reached the speed of sound!!! (770 mph, http://en.wikipedia.org/wiki/Speed_of_sound)

Edit:

New goal: the speed of light! (670616629 mph, http://en.wikipedia.org/wiki/Speed_of_light)

Were you just running or what were you doing to get that fast?

This is when we start wondering if you don't have some kind of nano-sized Cray chip embedded in your cerebral cortex.
:tizzy:

Edit:

Now I feel insufficient. DAMN YOU!

Edit:

Uhh, is the phys engine a continuous collision detection variant or is it a discrete collision detection variant?

Edit:

Why does everyone use degrees instead of radians? Radians just make more sense.

I think degrees are easier, because 360 is a nice number to divide (180, 90, 45, 22.5).

2 is a nice number two. And it's smaller and more intuitive.
.25 | 45
.5 | 90
.75 | 135 (nice number right?)
1 | 180
1.25 | 225 (nice number right?)
1.5 | 270 (nice number right?)
1.75 | 315 (nice number right?)
2 | 360

This is beautiful.

So? Does someone know if the source physics engine is a continuous detection engine or not?

Edit:

Question answered. Use this at your own risk, too high a velocity and collision checks will be invalidated and you might go sailing out of the world and crash the game.

Edit:

Recent Havok implementations offer continuous physics detection.

I wonder... someone make the max velocity some insane amount of 9's, then make a spaz contraption and get the speed...

:tizzy:

That only works if you specify that you're speaking in terms of pi, because you're completely wrong if you aren't .

While you may think more clearly in terms of pi, the average end user might not. People are just more familiar with degrees, being they make more logical sense to the average person.

Now fun can be had. I think.. Projectiles Will rape bitches at a billion FPS..

You might know I like pushing GMOD to it's limits.

Today, thanks to this, I did it with new "MASSIVE" prop accelerator.



It's a huge pipe that spans entire gm_wireconstruct - that should be roughly 1.5 km.



Using this apparatus I registered speed, which is, I believe, is the biggest speed you can reach in garry's mod (just due to that prop hits the map border).

I reached 29930 u/s, which is approx 2823 KPH, and 1700 MPH. Of course this is not the top limit - but the barrel (particle) went so fast, that you could not see it at 60 FPS.

P.S. It's a linear accelerator, prop goes along a single line, it should be the fastest contraption (except ones that use any bugs in physics engine)

IT'S OVER NINE THOUSAND! :freeman:
Anyways, has anyone else gotten any phys glitches yet?

Yeah, I got a barrel go through a metal panel at speed of almost 3000 kph (without collision)

That's like, three times the speed of sound!