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LOD_RADUIS is it more CPU or more GPU bound?

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As funny as it seems...I was surprised and pleased.  Of course everyone's system is different.  The smoothness was more noticeable than the frame rate but I am happy with my system  

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On 5/30/2019 at 10:57 PM, jabloomf1230 said:

Note that some vegetation autogen work was offloaded to the GPU and to background CPU thread. There has been no subsequent update for building autogen, which seems to me to be far harder on the CPU than trees do.

I can run autogen vegatation density at max with zero fps loss. When I put autogen building density to max I loss 10-15fps! P3D needs to offload even more to the GPU in my opinion!

i5 8600K  @4.5Ghz 16GB RAM GTX1060 

1 hour ago, ols500 said:

I can run autogen vegatation density at max with zero fps loss. When I put autogen building density to max I loss 10-15fps! P3D needs to offload even more to the GPU in my opinion!

With every update more will be put on the GPU..

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

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3 hours ago, GSalden said:

With every update more will be put on the GPU..

Why can't they just offload a lot in one update?

i5 8600K  @4.5Ghz 16GB RAM GTX1060 

It's not quite that simple. I wish Rob A. was still here as he could explain it a lot better than I can. At one point in the past, the simple explanation of 3D graphics was that the CPU drew the wireframe model and the GPU "painted" the wireframe. This simple paradigm became more complicated when nVidia introduced its GPU programming language CUDA. With CUDA, it is possible to utilize the GPU as sort of a super multitasking CPU. If one reads through the P3d update list and also the official forum, one finds references to using CUDA to replace specific CPU functionality.

This all sounds easy, but it takes skilled coding to make the switch and not break anything. I hope others can chime in with a better explanation.

21 minutes ago, jabloomf1230 said:

With CUDA, it is possible to utilize the GPU as sort of a super multitasking CPU.

I've wondered if there is any difference between using FXAA and/or TB in P3D or selecting it in NVI. My thinking was that setting FXAA and TB in NVI sets the GPU profile to execute those functions as opposed to executing them in the CPU. Is there a difference? I've tried it both ways and setting NVI seems to work better.

[CPL]  I9-9900K @5.0GHz HT ON, Maximus XI Hero, ASUS TUF RTX4080 OC, 32GB DDR4 3200 14, 1TB NVMe SSD, 500GB SSD, 1TB HDD, 40" Samsung 4K TV, Honeycomb Alpha & Bravo, Logitech Rudder Pedals, WIN11

On 6/2/2019 at 12:50 PM, ols500 said:

I can run autogen vegatation density at max with zero fps loss. When I put autogen building density to max I loss 10-15fps! P3D needs to offload even more to the GPU in my opinion!

Ollie,

I tried this today with the FSL A320, WoW it works a treat no FPS lose and also no stuttering or anything. 

Thank you. The sim looks so good with trees at max.

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On 6/2/2019 at 12:50 PM, ols500 said:

I can run autogen vegatation density at max with zero fps loss. When I put autogen building density to max I loss 10-15fps! P3D needs to offload even more to the GPU in my opinion!

Good find, I’ll be upping my slider tonight 👍

AMD Ryzen 5900X - Asus Crosshair VI Hero - G.Skill 32GB (2x16GB) 3000 C14 DDR4 @ 3600 14-14-15-14-28-42

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My Autogen Vegetation and Autogen Building Density are always set to Extremely Dense. Anything less is unacceptable.

Christopher Low

AMD Ryzen 7 9800X3D CPU / 64GB DDR5-6000 RAM / 12GB Nvidia RTX 4070 Super GPU / Gigabyte X870E Aorus Elite Wifi 7 / 1+2TB Samsung Evo Plus M2 Nvme

UK2000 Beta Tester

13 minutes ago, Christopher Low said:

My Autogen Vegetation and Autogen Building Density are always set to Extremely Dense. Anything less is unacceptable.

Then you probably do not have True Earth Netherlands/Great Britain or a FranceVFR region like Paris Ile de France ..... 🤔

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

I have TrueEarth GB South and TrueEarth Netherlands installed......and the latter is running just fine with everything (apart from those daft extrusion bridges) enabled.

Christopher Low

AMD Ryzen 7 9800X3D CPU / 64GB DDR5-6000 RAM / 12GB Nvidia RTX 4070 Super GPU / Gigabyte X870E Aorus Elite Wifi 7 / 1+2TB Samsung Evo Plus M2 Nvme

UK2000 Beta Tester

12 hours ago, djbully said:

Good find, I’ll be upping my slider tonight 👍

thats what she said

 
 
 
 
 
  913456
12 hours ago, djbully said:

Good find, I’ll be upping my slider tonight 👍

 

10 hours ago, Christopher Low said:

My Autogen Vegetation and Autogen Building Density are always set to Extremely Dense. Anything less is unacceptable.

please fly into LAX or YYZ like that and come back to us with how great the sim is...

 
 
 
 
 
  913456

Fortunately for me, LAX and YYZ are well outside my zone of operation :smile:

Christopher Low

AMD Ryzen 7 9800X3D CPU / 64GB DDR5-6000 RAM / 12GB Nvidia RTX 4070 Super GPU / Gigabyte X870E Aorus Elite Wifi 7 / 1+2TB Samsung Evo Plus M2 Nvme

UK2000 Beta Tester

So the lesson we have learned so far is that watereffect is a CPU hog/stutter fest which can be disabled via terrain.cfg in programdata/ LM folder?

Also Building Autogen,LOD, shadows, special effects etc in P3D menu. 

I came on a rather strange observation last day when i was testing Davids/ Nyxx FSL A320 P3D settings  in EDDF.

Yesterday after midday around 13 UTC we had some Thunderstorm in the area. Using ASP4 networked and EF and not all fine on the first flight. Stutter and fps way below my normal. Then i quickly blamed the bad weather for this. 

Today i tried the exact same scenario with historically weather and everything was amazing. 

Sometimes its just not P3D setting that is the reason for our FPS or stutter fest.  Sometimes i just give up and moves on but I have a suspious ,sometimes with firewalls or Maybe simconnect?  So many possibilites I am afraid. 

Michael Moe 

Edited by Michael Moe

Michael Moe

 

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