12 hours ago, MrBitstFlyer said:

Would love to know your XP settings, because I can't run at 60fps locked unless I turn the settings right down

Don't forget that I'm talking about XP11. But I can also see 80-100fps in XP12, with XPlane Map Enhancement + X-WORLD, no payware airports, and with GA aircraft. Airliners are fps heavy in XP12. I still can't enjoy VR in XP12, requires a lot of sacrificing and sadly at least 4090 gpu.

Alternatively, lock the frames in XP12 to 30/40 (whichever the minimum your system can handle), and then use lossless scaling adaptive mode, setting it to 90... And that creates smooth frame pacing, which also allows for the benefits of 90 FPS, reducing problems such as latency when looking around or flipping switches. 

 

9 hours ago, Pe11e said:

But I can also see 80-100fps in XP12

How?  What settings to achieve that?

20 minutes ago, MrBitstFlyer said:

How?  What settings to achieve that?

Flying over the pacific in a 172 in clear weather... 

I generally have around 35FPS at big airports, loose about 5 fps with AI traffic. Be interested to see what happens when AI are multi thread

9 hours ago, mjrhealth said:

Be interested to see what happens when AI are multi thread

Isn't AI pretty much multithreaded already? At least I have more busy cores with AI than without.

Zero AI aircraft:

 

19 AI aircraft:

 

By the way: When was the "Enable AI" checkbox introduced? This totally flew below my radar.

Edited July 16, 2025Jul 16 by Bjoern

46 minutes ago, Bjoern said:

Isn't AI pretty much multithreaded already? At least I have more busy cores with AI than without.

Zero AI aircraft: AI aircraft:

 

It may be more tge ATC part was mentioned somewhere. But certainly having eveyvai flight model seperate. Not sure howvit works. We see.

1 hour ago, Bjoern said:

Isn't AI pretty much multithreaded already? At least I have more busy cores with AI than without.

Zero AI aircraft:

 

19 AI aircraft:

 

By the way: When was the "Enable AI" checkbox introduced? This totally flew below my radar.

Wow. 100FPS hit with laminar AI active, now that’s something! 

22 hours ago, mjrhealth said:

It may be more tge ATC part was mentioned somewhere. But certainly having eveyvai flight model seperate. Not sure howvit works. We see.

Please start proofreading your posts. Those typos were 100% avoidable.

 

21 hours ago, Ianrivaldosmith said:

Wow. 100FPS hit with laminar AI active, now that’s something! 

Triple the frame time, get a third of the FPS.

Now throw orthos, X-World and VR into the mix and XP would grind to a halt. 😅 

Edited July 17, 2025Jul 17 by Bjoern

Disable 3d trees especially if sunrise/set is frequently on the flightplan. The shadow casting through the 3d branches at low sun horizon angles wrecks havoc on perf.

And linux.

28 minutes ago, blingthinger said:

Disable 3d trees especially if sunrise/set is frequently on the flightplan. The shadow casting through the 3d branches at low sun horizon angles wrecks havoc on perf.

And linux.

Not much hit with a 4090

That wouldn't entirely surprise me. My 7900xt crashes by 50% when I look out through the tree tops of a forest with the sun directly behind the camera view. The collapse is from the 100+ scenario in Bjoern's screenshots above so it's not the end of days either.

2 hours ago, Bjoern said:

Please start proofreading your posts. Those typos were 100% avoidable.

 

Triple the frame time, get a third of the FPS.

Now throw orthos, X-World and VR into the mix and XP would grind to a halt. 😅 

Me im not afraid to show im not perfect. Harder on tablet. 

On 7/16/2025 at 10:04 AM, MrBitstFlyer said:

How?  What settings to achieve that?

I had RivaTuner set to 45fps for XP12. I read about the fps data output in XP12, so I turned RivaTuner off.  I was surprised to see the fps was averaging 80fps and going over 100fps outside cities!

On 7/17/2025 at 8:37 PM, blingthinger said:

Disable 3d trees especially if sunrise/set is frequently on the flightplan. The shadow casting through the 3d branches at low sun horizon angles wrecks havoc on perf.

And linux.

I'd rather stop using X-Plane altogether than revert to a mid-90s flightsim scenery configuration.

Fortunately, I can code and am not afraid to invade X-Plane's privacy.

Quote

local XP12DR_SunPitch = dataref_table("sim/graphics/scenery/sun_pitch_degrees")
local XP12DR_Shadow_FarLimit = dataref_table("sim/private/controls/shadow/csm/far_limit_exterior")

local offset = 0 -- The target shadow far limit at 0° sun angle
local slope = ((1000-offset)/67) -- Calculates the slope, sun pitch as on the equator at jun 21st.

function Tweaks()
    -- Target: Far limit of 100 at 0° sun pitch and of 1000 at 67° sun pitch, slope is thus (1000-100)/67
    XP12DR_Shadow_FarLimit[0] = slope * math.abs(XP12DR_SunPitch[0]) + offset
    if XP12DR_Shadow_FarLimit[0] > 1000 then XP12DR_Shadow_FarLimit[0] = 1000 end -- Clamp to the default of 1000.
end

do_every_frame("Tweaks()")

If you set shadow quality to minimum and run this script with FlyWithLua, the FPS hit when looking away from the sun at low angles will be negligible.

 

 

On 7/17/2025 at 10:37 PM, mjrhealth said:

Me im not afraid to show im not perfect. Harder on tablet. 

That's not an excuse as you can edit your posts any time for a few hours. Since writing is the only form of communicaton we have here, it must be of the utmost quality.

Edited July 19, 2025Jul 19 by Bjoern