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captain_adf

Best practices for reducing VAS usage

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Hi folks,

 

Yet another OOM thread (sorry!)  I'm hoping to find a checklist of best practices for reducing VAS that's up to date for p3d v3.

 

I got greedy with my new install and pretty much maxed everything out so I'm not surprised I ended up with an OOM.  So now I am wondering where I should start to nudge things back down to reality.  I'm thinking clouds, vector, and road traffic are probably the 3 best places to start, but what would be the best way to get rid of the worst VAS offenders?

 

NGX sp1d

Departure airport:  FB KSFO HD

Destination:  FSDT KLAX

These are the only 2 add-on airports installed at the moment.  ASN weather was active and quite a bit of cloud cover on approach at LAX.  VAS warnings appeared around T/D, hit OOM about 10DME from runway 24R.

 

Here's my setup:

 

i7-6700k, 16GB, GTX 970, win10 64-bit, 1920x1200x32

p3d 3.3.5:

  • LOD: Ultra (one step below Max)
  • Tesselation: Max
  • Mesh resolution: 5m (2 steps below Max)
  • Texture resolution: 15cm (1 step below Max)
  • Water: High
  • Reflections: only user vehicle
  • Scenery complexity: Very Dense (1 below Max)
  • Autogen vegetation: Very Dense (1 below Max)
  • Autogen building: Dense (2 below Max)
  • Special effects: High and High
  • Lighting based on Rob's Medium settings:  http://www.robainscough.com/P3DV3_Settings_Medium.html
  • Weather: cloud draw: 80 miles, coverage High
  • Traffic:  0 aviation, 10% Road, 23% Ships, 19% Leisure boats
  • The only change I made to prepar3d.cfg is to add "AlwaysFullLoad=1"
  • Link to prepar3d.cfg:  http://pastebin.com/s0k8Fiwi

Orbx:  FTX Global, Vector, NCA, SCA, PNW

  • NCA and SCA:  all options checked
  • Orbx trees and Vector road lights on
  • Vector:  All options checked

Rex 4 TD + SC

  • all textures checked
  • clouds: 1024
  • runways/taxiways: 4096
  • clouds and wave:  32 bit

ASN SP5 (build 6010)

 

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Deactivating ORBX Vector and setting the LOD radius to High (2 steps below max) should give you a considerable VAS relief (over 500 MB in some critical regions from my experience). Try that out!

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Deactivating ORBX Vector and setting the LOD radius to High (2 steps below max) should give you a considerable VAS relief (over 500 MB in some critical regions from my experience). Try that out!

+1

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There is no need to deactivate Vector just reduce some roads and turn off the lights when you fly in day light. It would be a shame to lose all that vital terrain information. However LOD radius is most important. Stay with the middle notch (I think this is high), use DXT5 clouds. You don't have to reduce scenery complexity. Leave it on Ultra.

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I've always been curious, is there a gain from increasing the tessellation level to max? Does it further offload CPU rendering of terrain, does it just increase GPU workload, does it hold some sort of benefit?

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There is no need to deactivate Vector just reduce some roads and turn off the lights when you fly in day light. It would be a shame to lose all that vital terrain information. However LOD radius is most important. Stay with the middle notch (I think this is high), use DXT5 clouds. You don't have to reduce scenery complexity. Leave it on Ultra.

 

That is true. I would start with deactivating Vector completely and gradually activating desirable features while keeping an eye on the VAS consumption. The impact by Vector on VAS obviously depends on the location. For example, if you fly over Siberia, you will hardly experience any VAS impact as opposed to the Washington D.C. or New York area.

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I have the same exact system config and that seems like very moderate settings. It's a shame that VAS usage just keeps increasing at the same settings with v3.

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Don't deactivate Vector completely. IMO that is silly considering you have paid good money for it and it does have a significant positive effect on the scenery over stock.

 

Go into the Vector control panel and be very selective about what you tick. I have deselected most everything except main highways and primary roads and traffic. Deselect tunnel exits and underlays (what is an underlay anyway?). Here is where Vector can really eat up VAS.

 

Flying from/to two "mega" airports can be just as much to " blame" for OOM as Vector. It's the combination of all these factors that cause you to OOM.

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UTX is a viable alternative to Vector with less VAS effect.

 

 

Vic

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My formula for never getting an OOM, is to use UTX in all the areas that I fly, and nothing by Orbx except  their trees, and staying away from add on airports. 

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UTX is a viable alternative to Vector with less VAS effect.

 

 

Vic

Just wish it was world-wide. I fly a lot over in the southeast Asia area of the world and it's nice having realistic Vector data for that area.

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Does FTX Vectors really eat up a lot of VAS? I never really paid attention because I never have OOM'ed in P3D, and I've had FTX Vectors on the whole time.

 

Perhaps, it's just the airports eating up all the address space?

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Deactivating ORBX Vector and setting the LOD radius to High (2 steps below max) should give you a considerable VAS relief (over 500 MB in some critical regions from my experience). Try that out!

 

+1

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After the last reinstall of P3D I left FTX Vector away - never had any OOM issues again afterwards. And I can barely see a difference.

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After the last reinstall of P3D I left FTX Vector away - never had any OOM issues again afterwards. And I can barely see a difference.

Depends on where you fly. Africa and the USA for example, look like two completely different sims in both FSX and P3D. Africa it seems, was definitely not on anyone's priority list when the programs were developed. Even Vector and Global don't get it right in Africa but it is a huge improvement.

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My formula for never getting an OOM, is to use UTX in all the areas that I fly, and nothing by Orbx except  their trees, and staying away from add on airports.

 

Wow, that is a drastic approach. Flying with default airports would be a no-go for me as it entirely destroys the illusion.

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Yes, a lot of it has to do with scenery but the aircraft you fly is equally as important, IMHO.

 

I like to set up a flight at a simple default airport and then load different a/c and use FSUIPC to check remaining VAS right at startup. It's not the most scientific approach but I do reboot between changing a/c and frankly there are some a/c that use considerably more VAS at startup than others. That VAS doesn't get returned so it's a constant build.

 

I suggest, just FYI, that we check out favorites against a default and see how much you lose/gain with each a/c.

 

Vic

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Wow, that is a drastic approach. Flying with default airports would be a no-go for me as it entirely destroys the illusion.

 

In real life I have flown to many, many airports.  What I see in P3D is fine with me, especially since I spend about 1/100 of my flying time at the airport, if that much. Added to that, all my flying is with a VA and I try to fly to different airports on each flight. If I started buying airports, I would have to rob a bank to afford to purchase even a small portion of the airports that I land and takeoff from. Today, is typical, 5 different airports. 

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I have the opposite problem: too many addon airports, but too little time to visit them regularly. I like taxiing in a nice scenery, and even modelled local airports myself that are not available.

 

As to maintain good VAS, I deactivate every scenery that I do not need for the particular flight using SimStarter NG.

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Depends on where you fly. Africa and the USA for example, look like two completely different sims in both FSX and P3D. Africa it seems, was definitely not on anyone's priority list when the programs were developed. Even Vector and Global don't get it right in Africa but it is a huge improvement.

 

When I fly from KSFO or KPHL the scenery looks good. Even without Vector.

But I use FTX Global.

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Switch from full-screen mode to windowed mode and back once in a while and observe the VAS usage going down significantly. This is my method to keep VAS below out-of-memory errors. Or save and reload your flight from time to time.

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Switch from full-screen mode to windowed mode and back once in a while and observe the VAS usage going down significantly

 

Interesting, I will try that. What's the easiest way to monitor VAS during a flight? I forget if FSUIPC can do it or if you need another program installed.

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you can set FSUIPC to show remaining VAS.

 

Vic

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I've made some of the recommendations proposed here, notably reducing Vector settings to only major roads. However I still OOM with the NGX from SFO (FB) to LAX (FSDT) with NCA and SCA both active.

 

I tried the same flight in the Mooney which I'm assuming consumes minimal VAS vs the NGX. On the ramp at SFO, I start with around 1400 MB of available VAS according to FSUIPC logging. This drops only slightly during flight to around 1200. However when I get near lax, VAS plummets to 600.

 

Should I try any of the settings in FTX Central for NCA or SCA, will any of them save VAS? Any other thoughts? I'd hate to have to disable the regions altogether because they're so beautiful.

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