enrico10999

P3D V 4.5 useful tweaks ?

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Posted (edited)

Hi

In the past with the former versions there were useful tips here and on YT for tweaking the "prepar3D.cfg" file.

For example: 

[DISPLAY]
TEXTURE_BANDWIDTH_MULT=160            
[SCENERY]
MaxRegionsPurgePerFrame=1

[TERRAIN]
UseGlobalTerrainView=True
TEXTURE_SIZE_EXP=9

etc...

Are there any new findings as to whether such tweaks also make sense in version 4.5?

Or keep it like it is? 

Beside everybody seems to wait for the hot fix from LM. 🙂

Greetings 

Enrico

 

 

 

 

Edited by enrico10999

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14 minutes ago, enrico10999 said:

Hi

In the past with the former versions there were useful tips here and on YT for tweaking the "prepar3D.cfg" file.

For example: 

[DISPLAY]
TEXTURE_BANDWIDTH_MULT=160            
[SCENERY]
MaxRegionsPurgePerFrame=1

[TERRAIN]
UseGlobalTerrainView=True
TEXTURE_SIZE_EXP=9

etc...

Are there any new findings as to whether such tweaks also make sense in version 4.5?

Or keep it like it is? 

Beside everybody seems to wait for the hot fix from LM. 🙂

Greetings 

Enrico

The most important tweak for me is locking fps at 30 and

FIBER_FRAME_TIME_FRACTION=0.15  In Main Section of Prepar3d.cfg

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Posted (edited)
8 hours ago, DJJose said:

FIBER_FRAME_TIME_FRACTION=0.15  In Main Section of Prepar3d.cfg

This is highly individual and should not be put out there as a "useful Tweak" IMHO.. :unsure:

Edited by Bert Pieke
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I've never seen any difference tweaking TEXTURE_BANDWIDTH_MULT in P3Dv4.  I just leave it stock.

TEXTURE_SIZE_EXP=9 can be set in the sim GUI by checking "Use high-resolution terrain textures" in the "Terrain" section of the "World" page.

With the release of P3Dv4.4 Rob Ainscough offered some new tweaks that do make a difference:

[GRAPHICS]
ENABLE_MEMORY_OPTIMIZATION=0

MAX_TEXTURE_REQUEST_DISTANCE=320000.000000


[SCENERY]
SCENERY_DRAW_DISTANCE=64000.000000  (on up to 128000.000000)

and Rob's explanations/definitions:

SCENERY_DRAW_DISTANCE is set via the P3D UI (User Interface) in the Graphics options.  This value is the one MOST likely to reduce AG black textures.  The max value that can be set via P3D UI is 64000.000000 via slider (far right setting), if you manually adjust this setting by editing the Prepar3d.cfg and entering a higher value on upto 128000.000000 then you must NOT go into the P3D UI Graphics section and hit OK or else it will overwrite your manual value with whatever the slider is set at (so if the slider is far right it will reset the value back to 64000.000000).

MAX_TEXTURE_REQUEST_DISTANCE is NOT subject to P3D UI changes and you can manually edit the Prepar3d.cfg to enter just about any value you like (and it will stick) as there is no cap, so values 1000.000000 to 50000000.000000 are valid.

ENABLE_MEMORY_OPTIMIZATION is either OFF (value = 0) or ON (value = 1) ... if you have VRAM to spare, there is no need to attempt any memory optimization so set the value to 0 (zero).

HTH,

Greg

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56 minutes ago, Bert Pieke said:

This is highly individual and should not be put out there as a "useful Tweak" IMHO.. :unsure:

What a weird response.  

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12 minutes ago, mpw8679 said:

What a weird response.  

Sorry :smile:

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1 hour ago, mpw8679 said:

What a weird response.  

Not weird at all. The FFTF is NOT a one size fits all tweak and FFTF- 0.15 will easily cause issues in a system that is challenged. The valid ranges are from 0.10 to 0.99 with a default of 0.33 and depending on your system .15 may or may not work.

We have enough people blindly copying settings and running into problems. If one wants to post a "tweak" it would be best explaining the setting and noting what works for you.

IMHO, the weird response was yours.

Vic

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Posted (edited)
33 minutes ago, vgbaron said:

The FFTF is NOT a one size fits all tweak and FFTF- 0.15 will easily cause issues in a system that is challenged. The valid ranges are from 0.10 to 0.99 ....

I recall that in some of the threads discussing use of the program FFTF Dynamic, FFTF values down to 0.01 are suggested. So just wondering in the above did you mean the valid range starts from 0.01 or in fact are values below 0.1 not valid (or perhaps values below 0.1 would not be useful with the FFTF Dynamic program)?

Thx,

Al

Edited by ark

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16 minutes ago, ark said:

In some of the threads discussing use of the program FFTF Dynamic, FFTF values down to 0.01 are suggested. So just wondering in the above did you mean the valid range starts from 0.01 or in fact are values below 0.1 not valid (or perhaps values below 0.1 would not be useful with the FFTF Dynamic program)?

Thx,

Al

Don't want to start this battle again but when Aces put in the FFTF the valid ranges were 0.10 to 0.99. I have no knowledge that LM has ever messed with that. However, there still those that swear they see a difference between 0.01 and 0.10.

So unless someone from LM wishes t correct me, I will continue to list those as valid ranges.

That said, exceeding the ranges has no bad effects, it just defaults to the first valid range so 0.01 would become 0.10.

edit: with reference to the FFTF program, I would think it would be possible to MANUALLY insert the value but putting it in the P3D.CFG file will revert to the default.

Vic

 

 

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2 hours ago, Bert Pieke said:

This is highly individual and should not be put out there as a "useful Tweak" IMHO.. :unsure:

I did say for me. 😀

IMO, it's a tweak every simmer should try with different values to fit their system. YMMV

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3 minutes ago, DJJose said:

I did say for me. 😀

IMO, it's a tweak every simmer should try with different values to fit their system. YMMV

Agreed!

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2 minutes ago, vgbaron said:

Don't want to start this battle again but when Aces put in the FFTF the valid ranges were 0.10 to 0.99. I have no knowledge that LM has ever messed with that. However, there still those that swear they see a difference between 0.01 and 0.10.

So unless someone from LM wishes t correct me, I will continue to list those as valid ranges.

That said, exceeding the ranges has no bad effects, it just defaults to the first valid range so 0.01 would become 0.10.

Vic

OK Vic, thanks for the info. Being somewhat new to the FFTF discussion I didn't realize there had been 'debate' about the lower FFTF range limit.

Al

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Just now, ark said:

OK Vic, thanks for the info. Being somewhat new to the FFTF discussion I didn't realize there had been 'debate' about the lower FFTF range limit.

Al

No problem AL, just like in those who say they changed the LOD radius to 8 or 9 to get better visuals. LM had it capped at 6.5 no matter what and FSX was much lower but people still swore it made a difference.

:biggrin:

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41 minutes ago, DJJose said:

I did say for me. 😀

IMO, it's a tweak every simmer should try with different values to fit their system. YMMV

If you like experimenting with these settings, the following discussion might be a good read..

 

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19 minutes ago, Bert Pieke said:

If you like experimenting with these settings, the following discussion might be a good read..

 

Preaching to the choir.

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15 minutes ago, DJJose said:

Preaching to the choir.

Just agreeing with your YMMV comment.. :wink:

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FWIW - For me, I have always found that setting the graphics setting in the GUI to unlimited (and thus the FFTF value to 0.01) made for smoother performance.  However, this did cause autogen to display late at times.  I finally tried the FFTF Dynamic program and it solved this by adjusting the FFTF to higher values as the altitude increased.  Smooth performance and no more late autogen.

Others swear by locked FPS so to each their own.  Just what I found that works for me.

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9 minutes ago, pads103 said:

I finally tried the FFTF Dynamic program and it solved this by adjusting the FFTF to higher values as the altitude increased.  Smooth performance and no more late autogen.

Excellent point! Many users swear by that addon. It does a great job in eliminating the lost AG.

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3 hours ago, vgbaron said:

Not weird at all. The FFTF is NOT a one size fits all tweak and FFTF- 0.15 will easily cause issues in a system that is challenged. The valid ranges are from 0.10 to 0.99 with a default of 0.33 and depending on your system .15 may or may not work.

We have enough people blindly copying settings and running into problems. If one wants to post a "tweak" it would be best explaining the setting and noting what works for you.

IMHO, the weird response was yours.

Vic

Most config tweaks are not a one size fits all.  The FFTF tweak is one of the most useful tweaks there is.  To label it as not useful I just found misleading.  With today’s six and eight core cpu’s a FFTF setting of 0.15 works very well on a wide range of systems.  

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Display]
MaintainSystemCopyOfDeviceTextures=0

This is for Multi-GPU/SLI configurations and should alleviate the case where the 2nd GPU needs to read a texture off disk.

Graphics]
ENABLE_MEMORY_OPTIMIZATION=0

reduces malloc for AG but increases memory usage

This one does a few different things. Turning it off will cut down on memory allocations needed for autogen batches at the cost of extra memory. It should also improve loading when changing airports, because it won't unload your textures before changing locations. This will result in a spike of CPU/GPU memory usage during and shortly after changing locations.

 

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[BUFFERPOOLS]

UsePools=0

=> FPS increased

FFTF=0.1 works very well for me.

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1 minute ago, BlueSky31 said:

[BUFFERPOOLS]

UsePools=0

=> FPS increased

FFTF=0.1 works very well for me.

This is a very old one from many years ago. Don’t know if it does anything nowadays....

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Posted (edited)

I know but it still works for me with FPS limited at 60.

Just try and see 😊

Edited by BlueSky31

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On 5/9/2019 at 7:08 PM, mpw8679 said:

Most config tweaks are not a one size fits all.  The FFTF tweak is one of the most useful tweaks there is.  To label it as not useful I just found misleading.  With today’s six and eight core cpu’s a FFTF setting of 0.15 works very well on a wide range of systems.  

I do agree that 0.15 is a nice compromise between 0.1 (fps unlimited) and 0.33 (fps locked)...  Eating crow here.. :wink:

Right now, given that FFTF Dynamic is MIA because of incompatibility with the V4.5. Hotfix,  0.15 is a good value to try.. :cool:

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Posted (edited)

Since the "word not allowed" message showed I'll just delete the entire post. All this PC nonsense is, at times, a bit much.

Edited by W2DR
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