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Dominique_K

The week-end of fun of Asobo’s CEO

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12 minutes ago, Dominique_K said:

Love a bit of weekend geek!

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Flying since the early days of 386’s! 😀 Web developer, sailor, nerd. Contributor to the G36 Improvement Project

PC Specs: Intel i9-9900K on a Aorus Z390 // Pro Wifi motherboard // 32GB Corsair Vengeance Ram, 2x16, 3200mhz DDR4 // RTX3070 Gigabyte, Eagle OC 8GB // WD Blue SN550 (2400) NVMe SSD // 2x LG QHD Monitors, (27QN600) 

Discord Username: CaptMatto#7935

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Just now, Matt Barraud said:

Love a bit of weekend geek!

Yeah. I wonder what he does simulating the air disturbances of the wing foil. FS20 will perhaps include a wind tunnel for third party developers 😁 ?

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Dominique

Simming since 1981 -  4770k@3.7 GHz with 16 GB of RAM and a 1080 with 8 GB VRAM running a 27" @ 2560*1440 - Warthog HOTAS - MFG pedals - MFS Standard version with Steam

 

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Ah, fluid dynamics on airfoil. I did something like this in university as a final year project. Except, I used the Lattice Boltzmann method rather than Navier-Stokes equations.

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Júnior Silva

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I wonder if this is some kind of hint how serious they took the aerodynamics simulation. Which would be awesome, as even XPs' blade element theory isn't on that fundamental level of detail as an application in a flight model (afaik it was used for calculating forces on propeller blades and turned out being an efficient way of calculating a basic flight model).

Edited by tweekz
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Happy with MSFS 🙂 Looking forward to XP12

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What I wonder is why he does it in Shadertoy.  Maybe @n4gix @Lorby_SI @WarpD or @SteveW could enlighten us?

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Dominique

Simming since 1981 -  4770k@3.7 GHz with 16 GB of RAM and a 1080 with 8 GB VRAM running a 27" @ 2560*1440 - Warthog HOTAS - MFG pedals - MFS Standard version with Steam

 

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Nice! If MSFS will use such type of CFD coding, that would indeed be unheard of in the flight sim world, in terms of complexity.

Although, I notice the vortex shedding seems to indicate an unrealistically stalled airfoil (even at low AoA). So maybe he is just having some fun and demonstrating shadertoy capabilities (eheh).

In any case, a good sign that the lead flight model/physics programmer knows his stuff! ☺️

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"The problem with quotes on the Internet is that it is hard to verify their authenticity." [Abraham Lincoln]

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1 hour ago, Murmur said:

Nice! If MSFS will use such type of CFD coding, that would indeed be unheard of in the flight sim world, in terms of complexity.

Although, I notice the vortex shedding seems to indicate an unrealistically stalled airfoil (even at low AoA). So maybe he is just having some fun and demonstrating shadertoy capabilities (eheh).

In any case, a good sign that the lead flight model/physics programmer knows his stuff! ☺️

 

Yeah... probably just toying around... it was some wishful thinking by myself. 😄

But as you say, still a good sign that the lead programer is aware that flight dynamics are more than rails.

Edited by tweekz
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Happy with MSFS 🙂 Looking forward to XP12

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4 hours ago, JSilva said:

Ah, fluid dynamics on airfoil. I did something like this in university as a final year project. Except, I used the Lattice Boltzmann method rather than Navier-Stokes equations.

Yep, that's what NASA uses as well.

This is worth a look. 

 

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Dave-Aerosoft-2021-Small.png

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Let see if we can get a simulation with a variant flow and some wing flex perfomance.

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The IFR shows plenty of stutters, so don't waste GPU cycles on this level detail...


Matthew S

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18 minutes ago, MatthewS said:

The IFR shows plenty of stutters, so don't waste GPU cycles on this level detail...

On the contrary. Stutters are historically caused by CPU bottleneck, so if anything moving flying model to GPU and freeing up CPU could be a good thing for stutters. So yes, please use GPU cycles for flight model.


"The problem with quotes on the Internet is that it is hard to verify their authenticity." [Abraham Lincoln]

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1 hour ago, Murmur said:

On the contrary. Stutters are historically caused by CPU bottleneck, so if anything moving flying model to GPU and freeing up CPU could be a good thing for stutters. So yes, please use GPU cycles for flight model.

You might like to read what I said.

No, don't waste GPU cycles on this level of detail in the flight modelling, it's unnecessary.

We're only burning maybe 1 KwH of electricity on a 5 hour 747 flight in MSFS and not 50,000 kg of fuel, so there's no need for such commercial levels of flight modelling accuracy as demonstrated in the video above.

We need the GPU cycles for scenery & visual effects, and not "super duper" flight models.   What they showed in the aerodynamics video a few months ago looked more than sufficient, which presumably is already implemented on the GPU.

Edited by MatthewS

Matthew S

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1 hour ago, MatthewS said:

We need the GPU cycles for scenery & visual effects, and not "super duper" flight models.   What they showed in the aerodynamics video a few months ago looked more than sufficient, which presumably is already implemented on the GPU.

Stop using "we". You talk for yourself only, I talk for myself only. It's subjective. I would welcome this kind of "super duper" flight model accuracy, for me present scenery and visual effects look more than sufficient.

Edited by Murmur
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"The problem with quotes on the Internet is that it is hard to verify their authenticity." [Abraham Lincoln]

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I want super duper flight model, air flows and wing flex performance rather than nice silly trees, visual effects or any scenery BS.

 

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