Digital Combat Simulator – DCS Plugin 2.0.0.0

Hi,
I have just bought a dofreality 3dof system and I’m using DCS and try to make it run smoothly. Has what you are talking about been implemented into the latest version of SimTools that you can download? It’s going to be good to not have that jerkiness when trying to do a roll. Looking forward to using SimTools more.

Thanks

Upgrading pc soon so will be able to use DCS again

Previously simtools with this plug-in wouldn’t work with the spitfire

Is this still the case ??

Ps all other aircraft was ok

When replacing ‘roll’ In SimTools with Extra 1 and Extra 2(?) to smooth out the roll, besides the axis assignments where else do you need to update? Do I need to change anything in Export.lau or the plug-in?

Thanks

Tell me how can I use extra 2 in dcs?

I was never able to get Extra 1 or 2 to work. I'm still trying to figure out how to get YAW working! Someone mentioned using Heave, but for me, HEAVE tilts the rig forward/back? I found a solution to get rid of the "flip" when rolling, I'll try to find it and post it here.

For those looking to get rid of the "flip" when rolling or looping, look here for post #51

https://www.xsimulator.net/communit...s-tilting-chair-mosim.9181/page-3#post-118497

Thank you! Work fine.

Excellent, now if someone could help me get yaw to work?!!!

I think in DCS not is used yaw. Give it a try sway.

Finally got round to installing latest DCS world and all working well with my 5 dof rig. I really really really would like to use airspeed. Any chance this could be added to the plugin?

@hugso , which planes are you flying in DCS with Simtools? Some people are reporting that the newest planes (F/A-18c and Yak-52) are not functional with the plugin.

I have only flown the Spitfire so far. Works fine flying round Normandy. Needed a lot of tweaking when I swapped over from Cliffs of Dover. Pitch Roll and Sway all OK with minor adjustments in Tuning Center. Heave is a bit strange - a sudden leap of one g on take-off. Surge is how I would expect on the ground, but goes bonkers in flight - massive surges when zooming up and down and with changes in engine power. If I disconnect surge in flight things are pretty good. (It would be great if we had airspeed available with the plugin, I would not have to do this manually.)

I also have problems with surge in flight
On the ground it's fine but inflight keeps my platform always pitched up when i accelerate and the problem is that i can't feel enough pitch in this way.
How do you disconnect or deactivate surge in flight?
Is there a way to make this happen via the export.lua?
Thanks

Yes you can do it with a simple if statement and your altitude agl.

@gianlu320,
I've used altitude to scale certain outputs in the AfterNextFrame section of the export.lua Adjust your export.lua as required. (Make a backup first!!!!)
To get aircraft datums;
local altRad = LoGetAltitudeAboveGroundLevel()
local TAS = LoGetTrueAirSpeed() -- (args - 0, results - 1 (m/s))
local accel = LoGetAccelerationUnits() -- (args - 0, results - 1 (g)) The g-Force.

Where the variable "surge" is output to GameEngine I believe;
local surge = accel.x -- Surge

Then add values in as needed;

if altRad <= 2.5 then
surge = surge -- this statement not really needed but for following logic
else
surge = surge*0.1 -- Reduces surge by 1/10th when aircraft above 2.5AGL
end

@BrassEm
Thanks a lot for trying to help...
I'm a total noob in this thing, I've tried what you suggested but it doesn't work as expected.
I still get full surge inflight as before and I loose also the reduction on the other forces when on ground.
I'll copy paste what I modified in my export.lua

AfterNextFrame=function(self)

local altRad = LoGetAltitudeAboveGroundLevel()
local TAS = LoGetTrueAirSpeed() -- (args - 0, results - 1 (m/s))
local pitch, roll, yaw = LoGetADIPitchBankYaw()
local accel = LoGetAccelerationUnits() -- (args - 0, results - 1 (g)) The g-Force.
local surge = accel.x -- Surge



-- reduce forces on ground
-- if altRad < 3 then
-- accel.y = accel.y * 0.25
-- accel.z = accel.z * 0.25
-- surge = surge
-- else
-- surge = surge * 0.1 -- Reduces surge by 1/10 when aircraft above 3AGL
-- end



What did I get wrong?
thanks for the help

@gianlu320
My bad, I've been looking at my own export.lua for too long. Not seeing all of your export.lua I am assuming a few things. It would be good if you could post your full export.lua. But...

-- reduce forces on ground
if altRad < 3 then
accel.y = accel.y * 0.25 --<Reduces Heave to a 1/4 of its value while on the ground (Less than 3m/3ft)
accel.z = accel.z * 0.25 --<Reduces Sway to a 1/4 of its value while on the ground (Less than 3m/3ft)
accel.x= accel.x -- Surge remains the same
else
accel.x = accel.x* 0.1 -- Reduces surge by 1/10 when aircraft above 3AGL
end

EDIT: Apologies. The original code won't work as it is ignored by the lua interpreter because of the preceeding "--"'s. I've removed them to make it work as intended.

@BrassEm
Thanks a lot for your answer
I'll copy paste my export.lua as it is now without any of the changes you suggested.
I just want to mention that this export.lua was not done by me ,it was done by steve2112 and was posted in his building thread.
The link to his building thread and to his export.lua can be found in this page, page 15 of this thread, post287.
I just wanted to give credit to him before going any further.
So this is the export.lua I'm currently using and it works very well apart from the surge inflight that is a bit to much and it impedes my pitch...

AfterNextFrame=function(self)

local altRad = LoGetAltitudeAboveGroundLevel()
local pitch, roll, yaw = LoGetADIPitchBankYaw()
local accel = LoGetAccelerationUnits()

-- convert to degrees to make the math easier
pitch = pitch * 57.295779;
roll = roll * 57.295779;

--dbg_file:write(string.format( "p=%.1f r=%.1f ", pitch, roll))

-- STEVE reduce roll by when pitch > 45deg
if pitch > 45 then
local multiplier = 1- (pitch-45)/30
if multiplier < 0 then
multiplier = 0;
end
roll = roll*multiplier
--dbg_file:write(string.format("PITCH>45: p=%.1f r=%.1f m=%.3f ", pitch, roll, multiplier))
end

-- STEVE returns roll back to zero as it passes +/- 90 degrees to avoiding the -179 to 179 flip that occurs in a full roll
if roll > 90 then
roll = 180 - roll
--dbg_file:write(string.format("ROLL>90: p=%.1f r=%.1f ", pitch, roll))
elseif roll < -90 then
roll = -(180 + roll)
--dbg_file:write(string.format("ROLL<-90: p=%.1f r=%.1f ", pitch, roll))
end

--dbg_file:write(string.format("\n"))

-- reduce forces on ground
-- if altRad < 3 then
-- accel.x = accel.x * 0.25
-- accel.y = accel.y * 0.25
-- accel.z = accel.z * 0.25
-- end

my_send = socket.protect(function()
if c then
-- socket.try(c1:send(string.format("%.3f; %.3f; %.3f; %.3f; %.3f; %.3f;\n", pitch*1000.0, bank*1000.0, yaw*1000.0, accel.x*1000.0, accel.y*1000.0, accel.z*1000.0)))
socket.try(c:send(string.format("%.4f; %.4f; %.4f; %.4f; %.4f; %.4f;\n", pitch/57.295779, roll/57.295779, yaw, accel.x, accel.y, accel.z)))

end
end)
my_send()

end,

---------------------------------------------------------------------------------------------------------------------------------------------------------------
So what do you think?
Should I just modify it as you suggested in your previous post?
Like this?

-- reduce forces on ground
-- if altRad < 3 then
-- accel.y = accel.y * 0.25 --<Reduces Heave to a 1/4 of its value while on the ground (Less than 3m/3ft)
-- accel.z = accel.z * 0.25 --<Reduces Sway to a 1/4 of its value while on the ground (Less than 3m/3ft)
-- accel.x= accel.x -- Surge remains the same
-- else
-- accel.x = accel.x* 0.1 -- Reduces surge by 1/10 when aircraft above 3AGL
-- end

---------------------------------------------------------------------------------------------------------------------------------------------------------------
Also the first time you answered me you wrote me this...

AfterNextFrame=function(self)

local TAS = LoGetTrueAirSpeed() -- (args - 0, results - 1 (m/s))
local accel = LoGetAccelerationUnits() -- (args - 0, results - 1 (g)) The g-Force.

Do I need those lines as well?
Sorry for the many questions and really thank you for looking in to this and hopefully it can be useful for others as well

@gianlu320,

No problems. I hope I am not confusing things too much as I goofed with the last code post. Working from the bottom up;

local accel = LoGetAccelerationUnits() -- (args - 0, results - 1 (g)) The g-Force.
Steve's .lua already has this in so leave it as is. It assigns the g values obtained by the LoGetAccelerationUnits() funtion to the variable "accel".

local TAS = LoGetTrueAirSpeed() -- (args - 0, results - 1 (m/s))
I threw this statement in for reference as I use the TAS value in calculations to scale how much force is felt depending on airspeed where needed. Up to you if you want to add this in for your calculations. I can elaborate further if it will help.

You mention that the statements below work okay on the ground but not in the air. These statements have a preceeding "--" in front of them which tells the .lua processing to ignore anything after that in that line. So they dont have any effect unless you remove the "--"'s. This part of the code needs to be modified for the in air effects. I left them (the --'s) in when I cut and pasted for the previous post. They have preceding "--"'s so it wasn't going to work anyways as it was being ignored. Sorry about that. Now for the "working" code this time...

WAS...
-- reduce forces on ground
-- if altRad < 3 then
-- accel.x = accel.x * 0.25
-- accel.y = accel.y * 0.25
-- accel.z = accel.z * 0.25
-- end

REPLACED WITH...
-- reduce surge in the air
if altRad > 3 then
accel.x = accel.x * 0.5
end

The 0.5 scale factor value will reduce the Surge accel.x variable by half. In the previous example I've used 0.1 scale factor or one tenth. Unfortunately you will need to experiment until you find the value that works best for your setup.

Let us know how you go. I am also curious to what the MIN/MAX values in GAME ENGINE is for Surge.